screen flickers in games after a desktop session puts the display to sleep
At least a few updates ago on stable and testing (notable only since Plasma 6), half of my display flickers white in games but only if the display has gone to sleep at some point.
Restarting fixes it but only until I walk away from the PC for a period of time and the monitor turns off.
This occurs on both DXVK and VKD3D and for games across different storefronts.
GPU: AMD 7900xt
DE: KDE, Wayland
Solution:Jump to solution
solved this one by installing LACT then setting performance level to manual, 3d_full_screen or compute
27 Replies
https://streamable.com/hzjxfc (seizure warning)
might be the fun new kernel bug w/ memory
oh joy
I'll message you when the next release is up
shouldn't be too much longer
AMD is at least aware of it
whew. thanks!
I was going to ask if nvidia but aaw it wasn't
pretty much every time I look for info regarding flickering, it's Nvidia + Wayland
cus I had thisbwith nvidia
heh yeah, exactly this
Where it would work fine until the display turned off for sleep
what's this bug?
there's an atifacting bug in some circumstances and a crash if above 4g encoding isn't enabled
both are similar in origin -- vram
oh, that
amd oops
is that a stop-gap fix at least?
if you don't have that on, definitely turn it on and let us know
it's free performance
will do
It fixes the crashes
maybe help the flicker
I would be surprised if it was off, but it's also something I wouldn't have touched beyond day 1
I was actually never able getting couch gaming on VRR 120 Hz TV with Linux sleep for both AMD and Nvidia, different distros and hardware in general.
One thing is the kernel coordinating with mobile chipsets, another is desktops. Difficult problem to tackle
It is enabled already. Would “re-size BAR support” help here?
yes, you want that too
MSI I assume?
Yep
only manufacturer that splits it into two options lol
enjoy your +15%~ performance improvement in games
Sweet
I’m not playing anything right now that’ll push that limit, but free performance is free
Dang. Flickering still there. It might have even expanded to the full screen. Will need to test more
following up on this. after ensuring that bar and 4g are enabled, I still get the flickering after the display goes to sleep during a session
one month later update: the 6.9 kernel doesn't seem to fix this
Solution
solved this one by installing LACT then setting performance level to manual, 3d_full_screen or compute
What is AMD doing lately
That is a goofy bug
no idea, but it's been kicking around for a while and I just never stumbled across the solution before haha
at the time I posted this originally, I didn't know that the issue was tied to VRR. a few weeks ago, I came across posts tying this to VRR, so I kept digging
https://www.reddit.com/r/linux_gaming/comments/1dkt7jw/adaptive_syncvrr_flicker/
https://www.reddit.com/r/linux_gaming/comments/1entfo8/vrr_flicker_only_on_linux_but_not_windows_is/
https://www.reddit.com/r/linux_gaming/comments/1ct277o/i_found_a_fix_for_vrr_inconsistency_in_games/
that's the rabbit trail for future reference