@amrits have you been able to reproduce that issue ? This is annoying has hell. There are 2 mains ways I can 100% reproduce this issue. Play with retroarch (eg : snes game) and watch a video on a secondary monitor (happens very frequently). The bottom right corner of the monitor will flicker like hell. The second one is opening the Display Configuration in Endeavour OS (arch) and move the window near the bottom left corner of the screen. Hopefully we could have a fix in the next release or soon. Thanks. I have added my debug log as well. Hope this helps a little.
to reproduce, see my post from July 15th - I’m happy to help in any way I can. It’s been happening to me for years across multiple distros, x11, wayland, and multiple nvidia GPUs and monitors
it also still happens on the latest 580 driver with that new RmEnableAggressiveVblank option enabled
yes, same thing. Happens to me during fullscreen youtube videos as well. Extremely annoying and is about to push me to buying GPUs from the competition even though I’ve been buying nvidia since the GeForce256 first came out
@amrits is there any way to bump the priority on this? This has been happening forever
This is how I usually test to show this issue in videos for people. For whatever reason going to a steam store page and scrolling up and down it will just make it go absolutely nuts
This page is for deltarune. You can actually see this thread window is right behind in the video as it is artifacting its way through the steam window
Just to put more weight into this, I am also experiencing this issue. I’m running arch using the latest stable nvidia drivers from the repo, but this is happening since a few versions back. This only happens on my 360Hz monitor connected via DisplayPort, not on my 144Hz monitor using HDMI. I am happy to provide more info about my setup if needed.
interesting, for me it’s there since i got my 4k display, 7 October 2024, so id assume it happened
before that, just did not have a monitor at the time that required dsc
I have been experiencing this issue ever since I first got a 4k 240hz display back in mid 2024. At the time I was using KDE as my desktop environment and I tolerated the problem because it only occured on my desktop and I never had any artifacts while gaming. However, a while back I switched to using Hyprland, which has a configuration option called nvidia_anti_flicker which does eliminate this problem for me entirely. I have included a link to the relevant code in the hyprland renderer where this config option is utilized. I am not certain what this does exactly, and the hyprland documentation says this: “reduces flickering on nvidia at the cost of possible frame drops on lower-end GPUs”. I am not exactly sure what side-effects this option has, perhaps it is even entirely disabling explicit-sync but I am not well-versed enough to say.
I had this exact issue with a Steam install in a Wine prefix through Heroic Launcher, flickering in the bottom right of screen. Sometimes it would do it with Wine Steam pulled up and do it while in a game. In my case, it turned out to be fonts or specifically missing fonts. In the Heroic log, there were several entries that it couldn’t load the fonts. What fixed it was copying the fonts from my Windows install and dumping them into /usr/share/fonts. I noticed in hyrules bug report it can’t find fonts, see below. I am not saying that is everyone’s issue here but worth a look to see if you are getting errors.
(WW) The directory “/usr/share/fonts/misc” does not exist.
[ 15.887] Entry deleted from font path.
[ 15.887] (WW) `fonts.dir’ not found (or not valid) in “/usr/share/fonts/TTF”.
[ 15.887] Entry deleted from font path.
[ 15.887] (Run ‘mkfontdir’ on “/usr/share/fonts/TTF”).
[ 15.887] (WW) The directory “/usr/share/fonts/OTF” does not exist.
[ 15.887] Entry deleted from font path.
[ 15.887] (WW) The directory “/usr/share/fonts/Type1” does not exist.
[ 15.887] Entry deleted from font path.
[ 15.887] (WW) The directory “/usr/share/fonts/100dpi” does not exist.
[ 15.887] Entry deleted from font path.
[ 15.887] (WW) The directory “/usr/share/fonts/75dpi” does not exist.
[ 15.887] Entry deleted from font path.
I have changed to cachy OS recently and the glitch is back. Did you just copy the fonts from a windows install directly or did you install microsoft fonts from the repo ?
I have a Windows install still on another drive just in case I might have to boot to it (rare) so I just directly (no fiddling, no conversion) copied all the fonts from there over to CachyOS. When I did this, I was not expecting it to fix the flickering issue at all. I had issues in Left 4 Dead with boxes in people’s names because I didn’t have the right font loaded but noticed my flickering went away after copying the fonts over.
Forgot to add, after dumping the fonts in the /usr/share/fonts, you want to run these commands:
I just tried that and it does not seem to work at least for me right now. I also forced the font cache rebuilt and still get flickers in the lower right corner even with windows fonts installed. My guess as other said is that this might be a timing issue with compositors or a DSC code that’s borked somehow.
@rrameshbabu Hi again, this is the other thread that describes the same problem. I have this on a daily basis and while it doesn’t happen in in-games for me, it is quite annoying. One thing to mention is that this bug only happens on KDE for me. If I try Gnome on the same setup, the bug doesn’t appear for me.
Hello Hyrules, we really apologies for inconvenience caused, this repro is not consistent in our local labs, Do you mind generating nvidia-bug-report again and share to expedite this?