Hi,
Will open a bug report with nouveau to see if they can help me
troubleshoot this more.
Best regards
Benjamin
On 3/2/26 02:57, Uwe Kleine-König wrote:
Hello Ben,
On Sat, Feb 28, 2026 at 09:20:57AM -0600, [email protected] wrote:
I have been trying several different configurations and they all have there
own set of problems.
Nvidia + wayland = Several apps act weird, Spectacle breaks depending on
which app is open.
Nvidia + X11 = works good except for when waking the screens from sleep. I
get a black screen with mouse cursor. I can see when move over the password
box because the cursor changes, I can type in the password and usually
login. Sometimes it does lock up and I have to do hard reboot. This is a
Kwin + X11 problem but from what I read its not going to be fixed since they
are only focusing on Wayland.
The Nvidia parts above only prove that your hardware is probably ok. As
the driver is closed source, there isn't much more we can learn or do
about it.
Nouveau + Wayland = same as original problem
original problem = kworker threads using CPU? That's nothing I can act
upon---as describe in my earlier mail.
I did update the firmware from the back-ports and it fixed the missing
firmware errors listed earlier, but I still get this "kernel: nouveau
0000:01:00.0: drm: Disabling PCI power management to avoid bug"
The bug mentioned here is described in more detail at
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/gpu/drm/nouveau/nouveau_drm.c?id=11439c4635edd669ae435eec308f4ab8a0804808#n800
With the nvidia driver that's maybe the issue that you describe above
where on returning from sleep you get black screens. So you have 3
options to go on:
- Stay on nouveau and live with PCI power management being disabled
- Stay on nvidia (or patch nouveau to enable PM) and live with the
black screens on resume
- Work on the problem and find a better solution
For the 3rd option it's most probably you who would have to do the work.
Maybe upstream is interested and could help you, the Debian kernel team
cannot. Please contact upstream directly then.
Best regards
Uwe
