No signal using DisplayPort (no problem with HDMI)
Posted by doglatemlive66@reddit | buildapc | View on Reddit | 205 comments
Hey,
I recently bought a DisplayPort cable to try to enable Freesync on my monitor as I read that it only works with DP so not with HDMI which I was using until now... but the thing is that now, no matter what I try I can´t get any signal to my monitor through the DP... I checked the monitor settings and made sure to set the input to display port and I tried both modes which are DP 1.2 and 1.4, I also tried enabling and disabling DP hot plug detection but with no luck... so my question is :
Is there any other thing I can try to make it work? the cable doesn´t seem to be damaged but if there is no other solution it is either my monitor DP plug that is damaged or the cable but I figured I´d ask here before buying a new cable... also I can´t try different monitor as this is the only one I have with DP... my GPU has 3 DP and I tried all of them and none worked so GPU should be fine....
I have an EVGA RTX 2070 Super, and the monitor is HP 27xq if that helps...
Natural_Technology41@reddit
Well this post is a year old but i hope this helps anyone passing by If you tried everything and couldnt figure it out but if i found a post on microsoft support saying that if you plug both HDMI and DP cable and you press WIN+P and you use your UP and DOWN arrow keys to select every option ( like a trial and error type of thing until you find something that works) your screen will eventually flash or turns black for a couple of seconds until you get image on your screen.
shelby131079@reddit
just went to gym for a quick train and my grandma came in my room and cleaned the desk ( good of her ) but like always she spammed my pc and keyboard buttons, for a bit i thought she burned smth bcs i had this issue before ( in the same exactly way, pretty much i left my pc open with audio on display ( it helps me plug my headset in smaller distance) my grandma came to clean and suddenly no display connection ) it was working with hdmi and thats how i came to read this post. The last time this happend i restart from pc button and it was solved, this time it wouldnt work yet your solution made it done 100% ( thanks god xd ) still tho im not sure if the problem is my grandma spamming buttons or that i also had the sound option on display, every time that this happend to me both of those events was on spot tho :/ they could play a role ig
llllllllllllllllll19@reddit
Arrived here from a Google search, on day two of my struggles with DP. I tried your solution and finally got an image. It works! Both Windows and AMD Software display settings show the feed is coming from DP.
Then I pressed my monitor's settings button and saw it was still feeding from HDMI 2.0, so no biggie, I decided to switch it over to DP.
And immediately my screen went black except for "No Signal".
But after 2 days, I found a solution! I unplugged the Display Port cable, cut it with a pair of scissors, and threw it in the garbage where it belongs. I'm going back to HDMI.
Because over the past 20+ years, whenever I plugged my HDMI cable into my PC, I saw an image right away 99.9% of the time . When I plug my DP cable in, I have to go through 25 problem solving scenarios that eat up hours of my time, might potentially DAMAGE my brand new monitor with the continuous flickering on-and-off, and none of which actually work.
After this debacle, isn't it pretty obvious why HDMI 2.1 is the standard for all the new gaming systems?! DisplayPort is crap, and if I have to "suffer" through 144fps for the next few years using HDMI 2.0 instead of 165 or 240 with DisplayPort, then so be it. 240fps means shit to me when the method or doing it takes me literally hours of trial-and-error and still gets me nowhere.
Anyone here from Google, please take my advice: Immediately return whatever you bought that uses DisplayPort, don't buy anything that uses it in the future, and if you want high FPS, only buy stuff that uses HDMI 2.1
AdWhich3606@reddit
I read through what mostly worked here and this is what worked for me....
I tried ensuring my drivers were updated, pressed windows+p and set it to extend (toggled to see if the toggling helped, it didnt), tried unplugging the monitor and leaving it unplugged, reconnected, failed. tried same thing only restarting the pc power supply flipped off, rebooted, logged in, powered on screen, toggled between the on board display port and the different DP holes on the GPU, the LAST ONE WORKED, moved it to the first one and it worked too. also opened NVIDIA control panel to see if it was a monitor issue as well before that last step. just for trial and errors, thats how i tried and was successful. also remember its DP on pc -- HDMI on monitor, it only goes one way. its a 3090 running on win 11 with the latest updates to date, and this is an annoying as heck problem as i had already tried all the other non-reddit posted solutions (yes, my drivers were updated as the first step lol)
xXFR0STBYTEXx@reddit
I had no idea DP cable is one way, or at least mine was. Read that here, and swapped my cable around and worked! Thank you
shammikaze@reddit
I have no idea what you're saying you did, or if it fixed anything.
I've been having this same problem on both my PCs for YEARS now.
Only workaround I've found to fix Windows forgetting that my plugged in DisplayPort monitor exists (and can't even detect it) is to turn off the monitor, unplug both the power AND DisplayPort cables, wait 5 minutes, and then plug them back in.
I'd love a permanent solution though, and bonus points if I don't need to move all my windows around every time I unlock my PC.
DesignerWafer4438@reddit
Bro, I recently had this issue start. Everything on my PC is updated, including all drivers. All my DP cables are of high caliber and meant to support my monitors. Nothing is faulty. This happens randomly, but I turn on my computer (the shit is on and working fine), but it doesn't read my monitors. I tried unplugging and plugging back in, new cables, etc., but nothing works. Finally, I tried turning off my PC and unplugging the power source. I wait about 3-5min, and all of a sudden it's working normally again.
I still haven't found a resolution. I don't know what to do without starting over and wiping my computer clean, which I don't want to do.
If you discover any leads, please share! Thanks in advance. I'll do the same if I encounter something.
shammikaze@reddit
I'm pretty sure the DP issue is built directly into Windows and has to do with thinking the device is disconnected when it sleeps.
I've never resolved it myself, and it seems to only happen rarely and randomly.
I've also started having a new problem recently where Windows decides my second monitor no longer needs to display my task bar. Sometimes the act of toggling the task bar off and on again will even bluescreen my PC. Thanks, Microsoft!
There may exist some registry value somewhere that we can tamper with, but I don't know enough about all that to look. Supposedly there's also a registry-based fix for Windows moving all your apps to your main monitor when waking your monitors back up.
Idk. Fuck Microsoft tbh. Windows OS is so bloated these days with features we don't want and decisions we didn't make. Let's go back to the days where it just worked.
nagerecht@reddit
I tried this and it worked for me. Unplugged all cables, went to have breakfast, came back and plugged everything back in and started working instantly.
Thanks for taking the time to share what worked for you.
Puzzleheaded_Sir8191@reddit
and for my other monitor? im on a 1660 super wich only has ONE HDMI and one Display Port. terribly trash take.
Natural_Technology41@reddit
I mean if your control panel shows that GSYNC ou FREESYNC is available that means your DP is working and everything is as it should be. Switched from console to pc and most of my experience was fixing dumb and obvious shit like this one right here where it takes only 2 keys to fix, almost broke/changed my monitor and bought 2 more cables just nothing basically.
ReptileAlyx@reddit
Almost one year and this saved me. I had to open Nvidia control panel.
One monitor was not set up to work with multiple displays.
Thx
Tom_The_Tomato@reddit
I know this is old but I've been wrapping my head around this for some time and found it in:
NVIDIA app -> System -> Display Settings -> Manage Displays (Edit button on the right)
just had to enable the second display, thank you!
Gunslapper@reddit
What are you referring to here? Can’t find a setting like that.
Simply_AnotherUser@reddit
In what part of Nvidia control panel you found that setting exactly? I have dual monitor configuration and I have not any option as the one you ponted out anywhare in Nvidia control panel at all.
FamousHoliday2077@reddit
100%. DisplayPort is buggy, waste of time and money. My money! (Sonny Forelli's GTA Vice City voice)
SimplePuzzleheaded80@reddit
After two days of dealing with this...I agree!
Beadsifyy@reddit
what about the higher refresh rates with the displayport cable?
DisastrousAd9319@reddit
I know this is old but man this is a trash take. Dp is far superior to admit in almost every way.
Darth_Liberty@reddit
..except for "working reliably" - which is kind of important.
Happy_Historian2138@reddit
나는 한국에서 이 글을 보고 따라해서 해결했어 정말 고마워
Strange_Sea_9198@reddit
GOING THROUGH THE SAME thing right NOW! So....
Display port was working fine with my new build for 5 days with Samsung 55" odyssey ark monitor. Yesterday is just stopped working... If I turn on my pc and monitor the screen is just black with display port selected. the TV is reading on the menu that DisplayPort and HDMI cable is registering but still no picture.
I found what would be a temporary solution: Plug both HDMI and DisplayPort cables in, I got a picture with HDMI cable. PC working fine. Then when I switch monitor to DisplayPort and unplug HDMI cable, DisplayPort works.
TODAY, No picture on any port with any cable even with temporary remedy. I have no idea what to do. I keep having to shut computer off by the power supply switch.
NOTE:
I have another build, and everything is working fine with that build.
SUGGESTIONS PLEASE?!
ZiGrubby@reddit
Thanks you !
sealnamedrufus@reddit
THIS WORKED HOLY MOLY
Zenitsushimono@reddit
holy sht man, you save my life. Thank you so much! 4 years and still helping.
JustinVx@reddit
3 years later this was the solution for me!
Maxisamust7@reddit
Wow 4 years later and this worked, thank you and well it's just sad that I wasted hours 😢 on BS videos, Windows P forever
HaseHanse@reddit
cold pillow for you to rest your head upon for the rest of your life
fancy0473@reddit
3 year later and ily
Lumpy_Benefit666@reddit
3 years later and youve fixed this for me. Absolute legend. Been trying for months due to a wobbly hdmi connection and this is the first thing that worked. Thanks mate.
Panthers_Fly@reddit
No dice
Emjay314159@reddit
Thank you so much for posting! This fixed one of my problems (my desktop app shortcuts would disappear if I used the DisplayPort instead of HDMI), but not my other problem. The bottom 1/3? of my screen is glitchy. It doesn't flicker in and out, rather the image on the screen jumps around. It sort of looks like a copy of the screen flickers in and out on top of the screen image that is already there, except the copy is off to the side. If I change the screen to portrait mode instead of landscape, then it's the left side of the screen (from top to bottom) that glitches instead of the bottom (meaning it's the same section of the monitor that glitches, regardless of the display's orientation) . If I use the HDMI, everything is fine. Also, if I use the monitor's DisplayPort with the mini DisplayPort of my brother's laptop, the screen is fine. Well, the quality of the display isn't as nice, but it works with no glitching. I've tried multiple cables (a cable with DP and mini DP with the DP side plugged into my PC and the mini DP plugged into the monitor, a 1.4 DP cable, and a 1.2 DP cable). The monitor has both DP and mini DP options. The PC only has the DP option, no mini DP port. (They both also have HDMI, which works without any issue.) Regardless of whether I plug into the monitor's DP or mini DP port, the screen glitches. I'm assuming the issue lies with the PC, since the DP port of the monitor works with my brother's laptop. I tried updating my driver, but that didn't fix the issue either...unless I updated it incorrectly. Honestly, I didn't really know what I was doing. I don't know much about computers. Both the PC and monitor are new. It's not that the DP was working and has now stopped, it's never worked properly. Also, if I restart the computer while in safe mode, the screen still glitches, but the desktop app shortcuts will show unlike in normal mode. When I tried your solution, I was able to get the app shortcuts to show in normal mode, but the glitch is still there. Do you have any ideas of what else I could try? Also, my PC uses AMD if that info helps...
Natural_Technology41@reddit
I am not fimiliar with AMD drivers but i would suggest you disable freesync because your monitor may not support it, if that doesnt work tell me maybe i can find you a solution.
Emjay314159@reddit
I'm so sorry! I just saw that you replied. I'm three years late...I just wanted to say thank you. I ended up having to return the PC. It was faulty. My new one works as it should. Thanks again :)
bpoole6@reddit
You are beyond just a hero. You sir are a f***ing legend!
RedRaiderRocking@reddit
Thank you!!
divad2001@reddit
thank you, i dont know but when i keept switching the up and down thing, and switcched to 144 hrts on my screen it worked after a wile.
Prestigious-Roll-980@reddit
Ok so I have a different issue and will try and explain: I have 2 monitors and both have Display Ports. Lets call them Screen 1 and Screen 2. I have 2 computers and also a thinkpad hub/switch thing that i can plug laptop into to us my screens 1 an 2 now here is the Issue the DP on both screen 1 and 2 work fine when plugged into computer 2 and the thinkpad h/s, however when i plug in the display ports to computer 1, I can only get screen 2 to work.
Eteru_80m@reddit
OH MY GOD. Banged my head for hours trying to make my DP signal work. Your comment help a lot :)
ThinkingWithPortal@reddit
Thank you!
32T08@reddit
This proves it beyond doubt - tech is voodoo.
Ok_Penalty3746@reddit
damn! 2025 and it's works. i thought my DP was broken! thankyou so much man!
Extreme-Transition-3@reddit
didnt for me, any help?
straightnotstraight@reddit
THANK YOU HOLY HELL YOU ARE A LIFE SAVER
Jasonovich@reddit
Dude I’ve been trying for a week to fix the problem and this did it. Thank you
BobMarker@reddit
Adding onto this:
If you have multiple monitors, WIN+P might be setting the projection configuration on the monitor that works rather than the one that doesn't.
In this scenario, open up the display settings on the monitor that works, select the monitor that doesn't, then set that monitor to "Extend desktop to this display" from there.
Example Images
Otherwise_Rich_5005@reddit
well i think the issue for most and myself is that the second monitor or first monitor isnt even getting detected.
R_heidari@reddit
Thank you so much!!!!
BigASpatic@reddit
THIS SAVED ME SO MUCH FRUSTRATION! I have a 3 monitor setup and this save me a lot of hassle. Thank you so much
skydreamer303@reddit
WHY DOES THIS WORK?!?!
Ahhgotreallots@reddit
Thank you, I think this worked for me. My display port wasn't working on my gpu or Motherboard.
I plugged in both, switched to hdmi and did the Win+P.
It showed I was on extend, so I moved up and tried PC screen only and it went black, then switched to display port. Then checked my monitor and it was showing display port as well. I unplugged hdmi and still have it on the screen with DP.
Thank you and hope this helps anyone else.
emil199@reddit
I know this comment is old but dude thank you so much! Absolute legend <3
Carreb@reddit
Why the fuck does this even work, thanks so much it fixed the issue for me.
Context: My DP signal would randomly dissapear and the monitor would say 'no signal found'. Replugging the cable fixed the issue for a few minutes before going black again. This WIN+P cycle fixed the issue.
Mr_Eik@reddit
I feel so stupid now, thanks tho
Responsible_One_9104@reddit
Am I stupid? I dont know what to do and it doesnt work...
Natural_Technology41@reddit
Try changing your DP cable and try all over again, plug in your HDMI and DP cables and press WIN + P and hopefully that should do it.
AlpsLanky209@reddit
4 hours trying hundreds of those solutions and this one w WIN+P worked. Thank u sm bro
Herotyx@reddit
You are the best! it worked for me in 2024
GreenDragonCVR@reddit
Hey man, thanks for this, helped solve my problem.
bomiyeo@reddit
Omg thank you! You’re a life saver! This fixed mine
chickylicious@reddit
Worked <3
deleted_by_reddit@reddit
OMG, the amount of hours I have spent troubleshooting this and the fix was as simple as this...woww. It worked btw. TYTYTYTY!!
Natural_Technology41@reddit
Glad it did!
Responsible_Tie_7856@reddit
How do you stop a speakerless monitor beeping. Plugged in or not, it beeps. 4 times. Not really a beep. But ill call it a beep.
FilteringOutSubs@reddit
My primary symptom was the monitor displaying "cable not connected" and "signal not found", even when choosing the DP port.
The issue seems to have been somewhere in plugging a DisplayPort cable between a DP port in the monitor a DP++ port in the computer. Something was not compatible? Unclear.
Also, had to unplug the HDMI cable before everything fully worked.
Danmarm@reddit
I know this is gonna sound stupid but I flipped the 2 ends of the cable. Switching them. Somehow it worked, I tried everything including what they said on this post.
P.S. I have a Huawei Mateview GT 34" a rtx 3070 Gigabyte and a z690-Pro from MSI if that provides any help.
oceanswillrise@reddit
Can’t believe that worked.
Black_Swan_3@reddit
3 Years later and this worked like a champ! thanks!
ihatescalpers123@reddit
HOLY IT WORKEDDD 😭😭 When I remote in using Unattended Anydesk I could see there was display but my monitor was black.
berniewouldawon16@reddit
this shit is so fucking stupid but thank you because it worked for me.
FrontPuzzleheaded755@reddit
Wtf it worked
Sander_Toons@reddit
Unfortunately this didn't work for me
KC2SP@reddit
Worked for me lol thank you!
Topixed@reddit
2 years later and this comment is still saving people. Thank You.
L3x3cut0r@reddit
that's hilarious, it helped me as well, thanks
Ambitious-Finger-394@reddit
That’s unbelievable stupid… but worked. Ty bro 🤝
Koiey@reddit
3 years later and this just saved me wtf
googsx@reddit
What in the actual fuck It works
CometGoat@reddit
Random user from years ago saves the day again
tonychestnut@reddit
This shit actually worked.
southbreaker@reddit
Bruh I have a whole ass degree in computer engineering why does this work
Zealousideal_Habit37@reddit
Jesus Holy Christ... I can't believe that actually worked :D Lifesaviour, spend like half day on trying all possible solutions :D THX MAN.
Ok_Debate_7128@reddit
THIS WORKED LMFAOAOOAOOO
OldSchooolScrub@reddit
Whelp, I'm officially flabbergasted. Feel like I got shmeckledorfed by my monitor/gpu
xtrasus@reddit
This worked for me too lol
xtrasus@reddit
This worked for me too lol
typcalthowawayacount@reddit
Coming from 2025, this worked for me! I don't the science behind it to be honest.
b0red@reddit
this works
AnonOnez@reddit
And another one! Can't believe this is what did it :P
MapleKerman@reddit
It's so fucking ridiculous that this actually works. How is hardware as inconsistent as code?
BillRD7788@reddit
It works (so far). Wtttfff I don't understand why. Thank you from 2025 xD
Carnage2089@reddit
Bro I have been cursing my pc and display port for a few months now, been living with only one screen, just tried it and maybe im lucky, but goddamn, thank you so much. I feel dumb, honestly.
saskialynne@reddit
ty so much, this saved meeee
Voltexit@reddit
what the fuck. After a few hours of trying to find out why it didnt work THIS WAS THE SOLUTION
skullomonster@reddit
holy...... 2 years and I found the same problem and this solution. Got my GPU black screen after wake up from screen-sleep. It worked fine with my integrated graphics and I was anxious I thought that my 3070ti was busted. Spent like 20 hours or so to find out it worked fine with HDMI. Then I found this GOLD! Cheers bro my DP went back up again. Happy holiday literally lol.
Lucky-Dependent5716@reddit
I can't believe this worked for me too
EndGreedy7461@reddit
This one actually worked for me too!!! Honestly even i was skeptical that it would work
tapdmg@reddit
Wtf bro why did this work
Jakethompson3@reddit
I don’t know whether to hate or be happy that this worked but thank you so much from me a year in the future having the exact same problem
21217812578912@reddit
Bless your heart, it worked. Thank you so much.
SurveyMain@reddit
I had to log on to say holy shit this actually fucking worked😭😭😭
-skyhook-@reddit
why are you crying? pull yourself together man
chillaxor-9182@reddit
Worked for me
Elite_Reaper101@reddit
Bro listen, I spent about 3 days trying to understand why my monitor was not getting display output. I literally followed every guide there was, I am not even kidding. I have even came to this exact post multiple times and have seen your comment multiple times. And every single time I thought I might used like 3 dp cables 2 hdmi cables did this and that changed things so many times, for sure this is not gonna work for me and I skipped it every single time. But bro this works my god I don't know how much to thank you!!!!!! This is so stupid simple and yet this works and I feel dumb af. But thanks man, thanks a lot!!!
Academic_Ambition737@reddit
I love you, I guess its not common knowledge that dp needs to be in a certain orientation
, tried to figure it out for 2 hrs till I turned to reddit, helped me cable manage I guess lol.
gumring@reddit
I’m glad I found this, it bloody worked!
Simply_AnotherUser@reddit
I think this worked for you because it cause your monitor to reset in some way, the same way other suggest the power cycle, whic is what has been working for me.
PatientChest9774@reddit
The f**k? This actually worked for me 😅. I bought another cable, updated the drivers, and did a system restore. None of them worked until I tried this. This is just weird, but if it works, it's not stupid. Big thanks to you!!
Mags-Modem@reddit
THIS WORKED FOR ME THANK YOU SO MUCH
Majestic-Childhood93@reddit
Oh my god that actually worked, and I was about to start looking at new Monitors/GFX card.. had already invested in a new DP but no connection, swapped the cable around et voila, 240hz signal.. ❤️
nonytb@reddit
i had been using my monitor setup for over a month with no issues until now and my display was still properly working with my other laptop. i tried everything else on this thread and THIS is what fixed it - even though that cable orientation was functional before. you're a real lifesaver danmarm
AboodyVevo@reddit
Thiss so stupid but it worked for me lmao
RespectibleCabbage@reddit
This just worked for me too :D
benjaminsucksdick@reddit
this just worked for me in 2024... I switched the ends of the cable and it worked after days of not working... using xiaomi 34" 180hz with a 2060 super.
Many_Highlight1390@reddit
For me only laptop's hard reboot worked. Happened twice already...
HellhoundSin@reddit
Another stupid solution after a few days thinking my gpu was defective. The position of the connector was too close to the case, so it was not completely connected. Well, since it was "defective" I decided to force it, then I heard a "click" and magically there was signal.
KiraTheCommunist@reddit
Fml this was my issue lmao, even bought a new cable and everything
Phoneman90@reddit
I know this is old but you are the man!!! I've been struggling for about a week and just "forced" it into my monitor.
Any_Quantity_4137@reddit
This was it for me, GPU positioning after reseating was just a little off.
Dyno_122@reddit
Very odd solution but if here's something that worked for me.
Sander_Toons@reddit
I tried this and it didn't work
OneTwoOneTwo-12@reddit
worked lol
OGDivinityslayer@reddit
I don’t know why but somehow this worked and I tried so many things but like so many things and I’m so thank full for this dude seriously Jesus Christ, thank you again lad but hopefully I don’t have to redo this and hopefully if someone else is having trouble , this will work for you!!!
random2569@reddit
What a crazy fix.. this worked like a charm! I thought that my gpu died, because the day before it was working fine.
Simply_AnotherUser@reddit
I'm having this same issue out of nowhere since last month, and this method has usually enabled the DP recognition again fot me, but as soon as I put my PC in sleep mode, next time I wake it up the same problem appears again. Any idea of what could be causing this? I'm suspect it could be related to any update from windows update since for what i've been checking this isn't a flaw from my monitors, cables nor graphics card.
JLCosta@reddit
Have you ever figured this out? I've been having this issue for months, and no I'm consistently getting the no DP error
Simply_AnotherUser@reddit
Well, I ended up for the only solution that worked for me. To make things short, my problematic monitor has two outputs, one HDMI (which is the one conected to DP using a adapter and what's giving problems all the time) and one VGA. Fed up with this problem, and because I had an spare VGA to DP adapter, I simply give it a try and it worked flawlessly so far and, no noticing any loss of quality at all. Along the months I've been researching about this issue and seems la DP is a very problematic port, most of the people recommend to using HDMI or any other instead if available.
HUNGRYVELOCIRAPTOR@reddit
Nothing else worked except for this. Thanks!!
Left_Medium8098@reddit
J
DrPentaMerosu@reddit
I know it's been years, but maybe it can be useful to someone in the future.
after hours of troubleshooting I finally discovered that the monitor's power cable had probably gotten a little loose.
unplug and plug all the cables (including audio) and like magic it works.
Specialist_Door_2792@reddit
this and trying every option in the Win+P menu actually made it work, thanks!!!!
Schlibib@reddit
i tried everything above and this was the thing that made it work again! thanks. even bought new cables but nothing worked.
Altruistic_Elk6610@reddit
Tried 20 different things and yours worked thank you bro!
Extrocate@reddit
For anyone using a display port to usb c cable on a laptop, make sure your laptop didn't randomly disable the usb c port. You can turn it back on by holding down the power button for 20 seconds while the laptop is turned off
No_Mode_3746@reddit
I FUCKING LOVE YOU
Extrocate@reddit
How did 2 ppl have the same issue within 4 days after this thread has been dead for years lmao
No_Mode_3746@reddit
Haha I searched long and hard for an answer. And yours was the only correct one for my issue. Thanks again.
Extrocate@reddit
Got you homie
odnaloR_@reddit
2 years late BUT THIS HELPED THANK GOD 🙏🙏🙏🙏
Extrocate@reddit
Hell yeah. Now you know for next time too
hexress@reddit
Holy shit you saved me after an hour of searchng!
Extrocate@reddit
Glad I could help, took me multiple weeks of testing and replacing cables to figure out what was wrong
hexress@reddit
So I guess this was the fastboots' fault, right? It turned off usb-c during low power, and as it didn't fully had to boot again, it didn't bother tu turn it on I guess.
Extrocate@reddit
That could be it. I haven't went back and tried to figure out why it happened, but I do remember messing with fast boot
hexress@reddit
Seems likely, I'va had some more weird (not that broken) things happen after my laptop turned off from low power. Most of them were system errors (like explorer.exe and window manager bugging out so that I couldn't even restart from within the system). I see I have a bios update availible, might try that.
Soggy_Grapefruit_768@reddit
So one day I just turned on my PC and my main monitor (the Display Port monitor) had no signal, I tried all of these other solutions but none of them worked. I plugged my HDMI cable into my main monitor with the Display Port cable still plugged into my main monitor.
However, it was as simple as Pressing 'Windows + Ctrl + Shift + B' to restart my display drivers and it automatically switched from the HDMI signal back to the DP signal.
Hope this can help someone.
ooselfie@reddit
This was it
rebornhopes@reddit
oh my god soggy grapefruit 768 i will remember u forever THANK U
roob05@reddit
This was the solution for me as well, thank you!
THEPiplupFM@reddit
holy shit this worked, thank you!
Armamama@reddit
For whichever lost soul has the same issue as me - I'm using a Samsung Odyssey Monitor. As long as your monitor is plugged in and on, you should be able to open the menu and select the display port input option.
chocolatefacktory@reddit
This is 5y old but I came here to say that unplugging my monitor with only the dp cable in and plugging it back it worked for me. Simple unplug and plug worked and for the life of me I can’t believe I tried everything else except for that …
For more context : this issue seems to happen when you have both the hdmi and dp cable plugged in. especially if you are using that second monitor for both dp and hdmi ( second computer )
I use my hdmi cable with my laptop for work when i need a second monitor am. The Dp runs from my PC to the same monitor and I think this is what confused the pc / monitor .
dronkzilla@reddit
Plugged into the motherboard instead of the GPU. Only thing that worked for me, and worked instantly.
AverageTeemoEnjoyer@reddit
Bei mir wars genau anders herum. Hab beim Umzug das Setup komplett ab und wieder aufgebaut und ausversehen den falschen Port genommen...
sixfootthreeKD@reddit
Why did this work????
PracticalLet8705@reddit
This will let you see the desktop but you are likely running on the integrated graphics from the MOBO/CPU rather than your gpu, meaning you will get poor performance.
Apprehensive-Ad-5632@reddit
Thank you so much!!
TheKajuz@reddit
it fucking worked
Powerful-Art-5156@reddit
Thank you, new friend!!
Consistent_Movie_470@reddit
You sir! Is a savior! Thank you!
Slow-Amount-4978@reddit
I'll send you a message from 2025. One problem you might have is that the cable you connect to the graphics card (DisplayPort I mean) must be firmly inserted. Make sure it is tight. It has a big impact. Listen for the clicking sound.
Be sure to tell me the result.
teeroh@reddit
All of the shit in this thread did not work OTHER than switching the two ends. Ridiculous fix but it worked lol
bubbaraydudley@reddit
I can't believe out of everything this is what worked LOL... thanks
Disclipedd@reddit
then the same problem happened again for me
Extreme-Ad7076@reddit
Just in case this can help anyone, you're supposed to plug DP cable in the port that's same level as your graphics card, not somewhere higher.
conotank@reddit
Coming here from Google after three days of issues.
There was a solution posted below to boot your PC with the DP monitor unplugged, and then plug it back it in after a few minutes.
It worked.
Insane.
Pig_cake@reddit
i olso unplug before booting my pc. Did you find any solution because I bought a different dp cable, but the problem wasn't the cable
Asterisk08@reddit
Have you fixed it?
Stephen9o3@reddit
Yup, this has worked for me a couple of times. Dumb. switching back to HDMI
Medium_Basil8292@reddit
Fixed for me after 2 days of trying every damn fix. Display port is so stupid. Thank you.
miersuzzemes@reddit
Thanks, worked for me!
PuzzleheadedMud6441@reddit
Bruh this works for me thanking for helping me relieve my stress level were over 1000!!!
ConversationNo5191@reddit
gad damn bullshit old monitor was 240 hz working amazingly with a hdmi 2.1 recently just bought a new monitor and it wont even start with a DP cable nor do above 144 hz f me
Dio_Da7@reddit
just to give what worked me ihave rx 6600 as gpu , i entred the amd adrenaline then went to Display , then i scorlled down untill i fond some option called eyefinity and it was cobmining the both montior to act as one i removed it and everything worked well
Euphoric_Suspect_438@reddit
If anybody still having this problem, take out all the display cables including HDMI from your monitor and GPU. Switch around the display port cable end around. This worked for me thankfully
luca_r1412@reddit
Resolution not supported suddenky?
staged_rhetoric84@reddit
This post is old but just had this exact same problem. Unplugging and replugging the monitor's power cord fixed my issue.
CrazyCrayon161@reddit
worked for me, but only when I waited for more than 10 seconds after unplugging the monitor
Quiet_Bet_6892@reddit
Been trying all kinds of things, troubleshooting, diagnostics for almost 4 hours without any results
And this single thing fixed it. THANK YOU SO MUCH
L7ardoun@reddit
Une des solutions simple c'est aussi de checker les display port sur votre moniteur moi j'en ai trouvé 2 j'ai juste changé le display port et boum ca marche !
JustHere4Infoo@reddit
Same but confused
NoArmadillo8176@reddit
My dumb ass plugged it into the motherboard instead of the Gpu lol
Zealousideal_Post690@reddit
Same problem with me. I also have the 2070 SUPER. Same issue. everytime I restart my pc I have to pray to God that my second monitor works,,.... yea bout that.
FujiPotatoZebra@reddit
That's a 3 years old post now, but I ran into the same problem recently with Windows 11 and my monitor and nothing on the internet helped Then I decided to connect the monitor to my Macbook pro via display port, and then it magically fixed itself. Now it works both with Mac and Windows with DP
lLord_Thanatosl@reddit
I genuinely don't understand cause my monitor isn't displaying dp regardless. Took it into my local shop to see what was wrong, but it immediately turned on and gave display immediately via dp. Now that I'm home, have everything connected again and boom same as before not detecting the dp.
luxgamerj@reddit
Ok I'm pissed it was literally just not pushed in all the way like u have to hear the click wasted 4 hours
Jolly-Brick-952@reddit
I have had this problem happen to me twice. I took me a while to fix it. The thing that worked for me was unplugging both my pc AND monitor. Leaving it for about 30 seconds then plugging it back in. I have an Asus VG248QE monitor and apparently it’s a common problem with it
Majestic-Pear-4454@reddit
2024 Still works.
No-Policy-6992@reddit
Currently having issues on my PC now, the advice here is a real lifesaver!
RealMenChewGum@reddit
u/doglatemlive66 I know this is an old thread, but did you ever find a solution to this? I have the same issue using the same monitor - HP 27XQ. Displayport shows as inactive no matter what I do while HDMI works fine. The solution mentioned in one of the comments below (pressing WIN + P while both HDMI and DP are hooked up to the monitor) doesn't have any effect.
doglatemlive66@reddit (OP)
hey man no problem,
I actually dont remember but at the time this worked :
"before turning on your pc, unplugging the monitor from the outlet wait a couple of minutes to let it reset and then plug it in and turn the pc on.... tried it and it worked! but if I will have to do that everytime I turn on the pc I´ll probably switch back to HDMI..."
but from that time I didnt have to do it repeatedly... I am still using the DP and its working without any problems... but I dont think I did anything else it just kind of worked out, hopefully this helps
Simply_AnotherUser@reddit
I have had this same issue coming back intermitently along the past two years and since last sepetmeber again and it's driving me nuts. Do you have any idea of what could be causing this? I'm pretty sure the flaw isn't in my DP monitor, cables or graphics card... Some weird thing coming from Windows Update maybe?
just_cool_guy@reddit
That's the only solution that worked, thank you!
Key-War7953@reddit
Wow!!! Thank you!
A_1337_Canadian@reddit
One solution that no one brings up is to make sure it's the right type of cable. I'm just a layperson but there are DP -> HDMI cables that cannot be used as HDMI -> DP. So you could've bought a DP -> HDMI cable but are trying to use it as HDMI from the source and DP as the screen. This WON'T work on this type of cable. You need to get an "active" one.
crusky@reddit
I was confused for sooo long, but this was the problem. Thank you!!
Majestic-Childhood93@reddit
Oh my god that actually worked, and I was about to start looking at new Monitors/GFX card.. had already invested in a new DP but no connection, swapped the cable around et voila, 240hz signal.. ❤️
Glum-Dot5558@reddit
Slightly different problem. I had the same notification stuck on the top right hand side of my screen "No signal using DisplayPort". I could still use my screen behind that notification but was obviously obnoxious sitting there taking up part of my screen. I reset the monitor settings using the buttons on the monitor and that fixed it.
TechnicianLittle5966@reddit
i have two monitors and i cant use duplicate or show only on 1 or 2, display port is disconnecting itself after like 3 sec. idk what to do
ShadowXkazuya@reddit
for those who want to use dp individually, read this. plug in both hdmi and dp and duplicate the screen using win + p then open amd software and find global display then enable gpu scaling for display 2 which should be dp and you switch to display port using win + p. hopefully it helps.
Responsible_Topic669@reddit
Nothing will be deleted just everything is scrambled in different locations
Responsible_Topic669@reddit
Or simply unplug the extra hdmi u have that tends to split up ur apps in different ports
Responsible_Topic669@reddit
Then readjust ur home screens resolution cause
Responsible_Topic669@reddit
Also I should remind u after this ur keyboard won’t work so, go to human figure beside power button , Accessibility and click on screen keyboard
Responsible_Topic669@reddit
If it doesn’t work , try 4 repetitive presses on ur power button on ur pc , that will either start up the computer either in bios or bring u to Home Screen log in, if bios comes up , just exist from right side , and spam ur mouse till the screen logo comes up, if screen logo blinks , its a indication ur going back to bios if this persist , go to settings in left side bios, go to saved and logs, set back to default setting or choose exit, if ur brought back again to bios 3rd time repeat 2nd step 4 x until system reconfigures updating bios and you’ll be brought to a new blue log configuration where u can adjust what u want to do, I suggest you just left it recover and updated anything that the system found that wasn’t working and save changes and exist or restart computer , computer will reboot then press power button 4x n it should work