Hello,
has anyone solved this problem? I’m on Debian 12 as of right now and I have the exact same issue, although my boot and login times are much lower (~10 seconds). It’s driving me mad, as it happens under load as well as in a “calm state”, where I do nothing except type into an open terminal.
Cheers,
Krystof
Update: the stutter happens every 60 seconds. I have no shell extension pulling data in these periods that I know of. Happens on X11 as well as on Wayland. Tesla drivers did not fix this issue for me.
Disabling DRM did not do anything (apart from prohibiting the use of Wayland) and a clean installation from the NVIDIA website (v550, Debian provides v535) also performs the same way.
GPU: GeForce RTX 3090
Update 2: the issue might be closely relevant to KDE5’s window management, as it happens only in this desktop environment. I tried XFCE and to my surprise, the periodical stuttering was gone. The issue persists on KDE running under either X11 and Wayland, no difference in stuttering between the two.
Update 3: the issue is not relevant to KDE, same behaviour observed today while running XFCE.
I have just found out that this behavior was caused by ddcutil - a tool to manage the brightness of monitors - that was detecting monitors (ddcutil detect) every 60 seconds and causing horrible lag not only on the GPU but on the CPU as well.
Check if you either use this tool to control the brightness of your laptop or for your external monitors, or if you use any shell extensions that might execute this command if you are having similar issues.