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 Posted: Sat, 12th Mar 2022 13:32 Post subject: Short Flicker on Display every 30-60 Minutes only on DP |
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Since 1-2 months ago, i get a short flicker in the lower part of my Screen every 30-60 minutes or so.
Its so fast, that if you blink while its happening, you will not see it. It is only happening with displayport, not on hdmi 2.0, both on 1440p with 144hz.
- I tried multiple displayport cables, ordered the 5 best from amazon, also some which clearly say pin 19 is deactivated and all of them had the same problem like with my old cable.
- I bought a new display because of this.
- Also i bought an used gtx 970 yesterday to replace my old gtx 970, because i thought maybe my dp on the card is damaged and ITS STILL HAPPENING.
- Updated the card with "NVIDIA_DisplayPort_Firmware_Updater_1.0-x64" and set my display to dp 1.2
- I also tried multiple drivers and i don't know what to do anymore.
At first i thought it's chrome, since it has major graphical/hardware accleration bugs in the last 1-2 months for me, like stuttering when scrolling. But now i tried firefox and it's also happening there.
ANY other ideas in here? Or even people with the same problem? Im on the latest windows 10 version, is it related to windows somehow? i mean i tried so many older drivers, used ddu to uninstall the old drivers, replaced all the hardware which could be the problem and its still happening.
sure i could run sli now since i got 2 cards and use the hdmi 2.0 port on each card to drive my two displays, but i rather use one card and use dp + hdmi 2.0.
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| Posted: Sat, 12th Mar 2022 13:35 Post subject: |
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have the same problem since years. first i thought it was caused because my second screen was different resolution and refresh rate. a few month ago i replaced it with the same model as the my screen. still happens, wqhd + 144hz.
now i think its related to gsync (compatible)
problem was there on win 10 aswell on 11 now
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| Posted: Sat, 12th Mar 2022 13:41 Post subject: |
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| Janz wrote: | have the same problem since years. first i thought it was caused because my second screen was different resolution and refresh rate. a few month ago i replaced it with the same model as the my screen. still happens, wqhd + 144hz.
now i think its related to gsync (compatible)
problem was there on win 10 aswell on 11 now |
thanks for your reply.
but its also working fine for you with hdmi 2.0? its only on DP for me.
the gtx 970 shouldn't work with g sync compatible displays in the first place, so i don't know if that would be the cause then. my old display was a "real" gsync display. i don't have the gsync tab anymore now.
while google the problem i noticed many people who got it (or something similar) since years but mostly all of them fixed it by going into the monitor settings and change the dp version to 1.2, which didn't do anything for me.
and i mean until 1-2 months ago it was working without problems, i would have noticed it before cause i sit on my pc all day, just like i do now.
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| Posted: Sat, 12th Mar 2022 13:52 Post subject: |
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ops sorry forgot to mention that. main screen was always display port, the old second screen hdmi (tested a dp to hdmi cable too)
"old" main screen was always set to dp 1.2, the new one (newer revision, of the same model) doenst offer that option to change between dp 1.1 and 1.2
iirc the problem was there with my 1070 too (atm using a 2070 super since 2+ years)
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| Posted: Sat, 12th Mar 2022 13:57 Post subject: |
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thank you, it's so fucked up, how can this go on for years without many people report/notice it and nvidia/ms fix it?
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Frant
King's Bounty
Posts: 24607
Location: Your Mom
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| Posted: Sat, 12th Mar 2022 15:24 Post subject: |
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From what I've read online it's most likely a cable issue (ie. not using a VESA-certified cable) or a slight difference in the DP controllers in each device. Have you tried with a different screen that have a DP port? It might be that the sync signaling from your GPU to the screen "skips" at random intervals. I'm just guessing though, I'm using HDMI 2.0 since forever.
There's also suggestions to lock the framerate in the nvidia control panel.
| Quote: | Though in this case, simply tossing aside that DisplayPort cable that came with your monitor and replacing it with a random one may not have an effect. The key here is to go with one that has been certified by VESA.
There are a couple of reasons why this is the case. We did some digging, and apparently one of the pins (#20) on some older DisplayPort cables is wired incorrectly. This pin provides some additional power (3.3V/500mA) for certain accessories. However, this can cause problems when connecting a monitor to a graphics card, if a cable maker did not follow VESA's specifications for pin #20.
That's one potential issue. The second one is that even more modern DisplayPort cables might be poorly made. If the one that shipped with your monitor is not VESA certified, there is a chance it could cause flickering and sync issues. Or so that is the assumption, based on anecdotal experiences. |
Also, try dropping your resolution down one step and see if it still happens.
It seems like a very curious issue which doesn't seem to have a definite answer after all these years.
Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn!
"The sky was the color of a TV tuned to a dead station" - Neuromancer
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| Posted: Sat, 12th Mar 2022 16:11 Post subject: |
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thank you too.
i first noticed it with my old display, which was running fine with my old dp cable for over 3 years without any problems. so of course i thought it's the cable, then i bought multiple new cables, vesa certified, with pin 20 deactivated (mistyped it in the first post sorry) and so on and it was happening with all of them.
so i thought ok, it's the display afterall. send the old display back to amazon, got my 399 euros back and bought a new one just to notice it's still happening, but since the new display has also a hdmi 2.0 port, which my old didn't had, so i bought a hdmi 2.0 cable and tested it and to my surprise no problems at all.
that is why i thought ok my gpu is dying on me, or at least the dp of it, so i bought a used gtx 970 yesterday for 50 euros and it's still happening with this card, also just on dp.
sadly right now, this is my only display with a dp input, so i can't test it on another, but since i noticed it on the old and new display, chances are pretty high that it will also happen on another display.
i bet if i put the resolution down, or the refreshrate to 120 or so, it will be gone, but this ain't a fix in the long run. still i can test it after im done with my current test with even older drivers and afterburner disabled.
probably i will end up with a useless hot and loud SLI setup just so i got 2 hdmi 2.0 outputs but for that most likely i will also need a new PSU since i only got 650 watt. fuck my life
also nvidia just deleted my post from their subreddit, no insults or anything, pretty much just my post from here copy and pasted. fucking assholes
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| Posted: Sun, 13th Mar 2022 12:45 Post subject: |
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| Quote: | | Try setting your GPU to Max Performance in NVIDIA Control Panel. I had this same issue and now its fixed. It Occurs because under normal power mode, GPU down clocks too much on idle and cant cope up with the high refresh rate monitor. |
right now im trying this and so far for a few hours no problems, will see if it helps.
but if this is really the cause, why didn't it happen before and would there be another option like a slightly idle overclock or so with afterburner? is this possible? never really done gpu overclocking. the card is getting really hot now and the fans kick in every 10 minutes or so. normally they won't spin at all on desktop.
if not, i will try 120hz instead and hope it's gone, so i don't have to use max performance mode.
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| Posted: Sun, 13th Mar 2022 13:24 Post subject: |
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linus tech tips did a massive cable test and showed many cables are sub standard explaining many isseus they have had in their office
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| Posted: Sun, 13th Mar 2022 13:41 Post subject: |
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| PickupArtist wrote: | | linus tech tips did a massive cable test and showed many cables are sub standard explaining many isseus they have had in their office |
i know i have seen this, this is not an cable issue, sadly. i wish it would be.
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| Posted: Sun, 13th Mar 2022 13:50 Post subject: |
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dont think its related to the gpu clocking down, can remember this happening too while having a setup up which prevented the gpu from clocking down at all (for a few days i had my av receiver connected to the pc via hdmi, that 3rd connecting prevented the gpu to clock down)
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| Posted: Sun, 13th Mar 2022 13:57 Post subject: |
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| Janz wrote: | | dont think its related to the gpu clocking down, can remember this happening too while having a setup up which prevented the gpu from clocking down at all (for a few days i had my av receiver connected to the pc via hdmi, that 3rd connecting prevented the gpu to clock down) |
i also got auto source disabled on my monitor right now for testing purposes, it has to be one of those two since i haven't seen the flickering all day until now. i will check it out and let you know if i fixed it, so maybe it will help you too then.
thank you all for your help
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| Posted: Sun, 13th Mar 2022 19:43 Post subject: |
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auto source is deactivated for me anyway
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Frant
King's Bounty
Posts: 24607
Location: Your Mom
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| Posted: Mon, 14th Mar 2022 05:00 Post subject: |
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It seems the DP standard is subpar. :/
Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn!
"The sky was the color of a TV tuned to a dead station" - Neuromancer
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| Posted: Mon, 14th Mar 2022 08:02 Post subject: |
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have my working device hooked up with a docking station to my monitors too (mini-dp to hdmi cables). bummer there: surface dock 1, cant handle 144hz @ 1440p. so till i get my new surface + dock 2 its running with 60hz. no flicker there...
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| Posted: Mon, 14th Mar 2022 08:59 Post subject: |
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| Janz wrote: | | have my working device hooked up with a docking station to my monitors too (mini-dp to hdmi cables). bummer there: surface dock 1, cant handle 144hz @ 1440p. so till i get my new surface + dock 2 its running with 60hz. no flicker there... |
i bet it would also work with 120hz. many people who got those problems fixed it by just going to 120hz.
i was just about to post that i think it's fixed, just wanted to click on post, then it flickered again lol.
haven't seen it last morning with max performance enabled, but disabled it again, because the fan kicked in all the time while playing gran turismo 7 on ps5, which is also the reason i couldn't test it until evening.
but even with max performance disabled i haven't noticed it last evening, so i thought it's fixed somehow.
sadly that doesn't seem to be the case and i really don't want to use max performance mode, so i will try 120hz now
/edit
if you have seen my post in the chrome thread, i had some stuttering while scrolling since 2 or 3 updates ago in all chromium based browsers. with 120hz, this is gone now completely. it didn't happened on firefox.
the only thing i did do in the last months, was updating windows, chrome and spotify.
so is there a chance, that a windows update broke 144hz somehow? that it's not only causing stuttering in chromium based browsers but also makes my screen flicker?
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| Posted: Tue, 15th Mar 2022 23:04 Post subject: |
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the problem is fixed for me and i really think it was somehow related to not having the max perfomance mode on and displayport couldn't handle idle mode with 144hz for whatever reason, even tho it worked before just fine for 3 years, even with g sync enabled.
1440p/144 hz (dp) + 1080p/60 hz = short flicker every 30-60 mins
1440p/144 hz (hdmi) + 1080p/60 hz = no problems
1440p/120 hz (dp) + 1080p/60 hz = no problems
1440p/144 hz (dp) + 1080p/60 hz + max performance mode = no problems, but card not clocking down in idle
bought a new secondary display since i wanted it for a long time and thought like this i can also test it.
1440p/144 hz (dp) + 1440p/144 hz (hdmi) = no problems, except the card won't clock down now, like with max performance mode before, even tho it's not turned on. only fix would be to set my new secondary display to 60hz, or both to 100hz, otherwise it will not downclock.
fuck my life, 40 watts more lol. i hope this is at least fixed with newer gpus, like the 3xxx series, so they will still clock down with 2x 144hz displays.
sorry if i can't helo you janz  you said max performance mode will not change it for you, so i don't know whats causing it for you.
/edit
build a second 970 gtx into the pc, so i can use a different card for each display, now i can run both displays at 1440p/170hz and the gpus won't downclock and won't flicker.
also they use around 15-20 watts each, instead of 60-65 watt with one single card which doesn't downlock.
sli doesn't work, since it requiers to plug in both displays at one gpu, but i don't need sli anyway.
so 20-25 watts less now, they downclock and no fucking fans spinning.
if you got an igpu which supports this high resolutions and refresh rates, plug in in your secondary monitor there, or buy any cheap office card which support those resolutions/refreshrates, just for your second screen.
seems like there is no other fix to this "downclock issue"
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