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Bug 904363

Summary: x11-drivers/nvidia-drivers-530.41.03: Unable to run highest frame-rate on Wayland
Product: Gentoo Linux Reporter: Ivo Šmerek <ivo97>
Component: Current packagesAssignee: Ionen Wolkens <ionen>
Status: RESOLVED UPSTREAM    
Severity: normal CC: ionen, soap
Priority: Normal    
Version: unspecified   
Hardware: All   
OS: Linux   
Whiteboard:
Package list:
Runtime testing required: ---
Attachments: emerge --info
Kernel configuration

Description Ivo Šmerek 2023-04-15 10:08:29 UTC
Created attachment 860146 [details]
emerge --info

I'm currently testing x11-drivers/nvidia-drivers-530.41.03 from Portage tree and experiencing an issue that doesn't occur in the stable 525.105.17 version.

I have a monitor that runs 3440x1440 resolution with 165Hz. Everything works fine with 525.105.17. But with 530.41.03 version, Wayland cannot display this resolution with this specific frame-rate anymore. I use Gnome Mutter and if I set the frame-rate down to 100Hz, it starts working. This issue doesn't occur on Xorg where 165Hz works fine.

I have:
kernel: 6.1.19-gentoo-x86_64
GPU: GeForce RTX 3080 12GB
DE: gnome-base/gnome-shell-43.3 with dev-libs/wayland-1.21.0-r1

Are there any logs I can look into to get some more information about this problem? Did something change in the recommended kernel configuration for the newest drivers?
Comment 1 Ivo Šmerek 2023-04-15 10:09:16 UTC
Created attachment 860147 [details]
Kernel configuration
Comment 2 Ionen Wolkens gentoo-dev 2023-04-15 10:27:00 UTC
I doubt kernel configs are related, but I don't really have a way to tell what changed (much is still closed source and there's no proper history for modules), and don't have a setup to test these resolutions either.

Have to take things like this with NVIDIA unless you believe the problem is Gentoo-specific, or is major enough to require masking.

Note that 530 is a new feature branch (NFB), it will never be marked stable unlike production 525.x -- regressions are more likely, especially with its wayland support which barely works as-is.
Comment 3 Ionen Wolkens gentoo-dev 2023-04-15 10:30:35 UTC
About kernel, when in doubt about your configs you can always try gentoo-kernel-bin for a quick generic kernel. But I suspect it's just a driver regression and is unrelated.
Comment 4 Ivo Šmerek 2023-04-15 11:10:25 UTC
Alright, I understand. Thank you for the information.