my system:
Debian Buster 10
Kernel 4.19.0-6
XFCE and X11
all packages from buster sources, nothing from backports
AMD Ryzen 9 3900X
Nvidia Geforce RTX 2060 with driver 418.74 (as is it in the buster sources)
Mainboard with X570 chipset
dual monitor setup
their is no second gpu, this is a desktop system (no optimus system)
my problem is that after random time, sometimes after days or once a week, the graphical output stutters for multiple seconds, the mouse stutters too. It happens on open/start or closing windows/programs. it getting smooth again later ( ~ 30 - 60 seconds) but only so far i dont start the wrong application. With the wrong application, it starts stuttering again until I kill the process.
Just as i write this, i am in this situation and i dont see any warnings/errors in the log files. xorg.0.log only outputs this
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[ 10780.005] (EE) NVIDIA(GPU-0): WAIT (2, 8, 0x8000, 0x00001360, 0x00001b78)
[ 10781.004] (EE) NVIDIA(GPU-0): WAIT (0, 8, 0x8000, 0x00001b78, 0x00001b78)
[ 10781.004] (II) event3 - PixArt Microsoft USB Optical Mouse: SYN_DROPPED event - some input events have been lost.
[ 10784.005] (EE) NVIDIA(GPU-0): WAIT (2, 8, 0x8000, 0x00001b78, 0x00001dac)
[ 10785.004] (EE) NVIDIA(GPU-0): WAIT (0, 8, 0x8000, 0x00001dac, 0x00001dac)
[ 11099.454] nvLock: client timed out, taking the lock
[ 11304.042] (EE) NVIDIA(GPU-0): WAIT (2, 8, 0x8000, 0x00003884, 0x0000388c)
[ 11305.032] (EE) NVIDIA(GPU-0): WAIT (0, 8, 0x8000, 0x0000388c, 0x0000388c)
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Oct 17 21:17:23 europa kernel: [17002.742251] nvidia-modeset: WARNING: GPU:0: Lost display notification (0:0x00000000); continuing.
Oct 17 21:17:31 europa kernel: [17010.741209] nvidia-modeset: WARNING: GPU:0: Lost display notification (0:0x00000000); continuing.
Oct 17 21:17:39 europa kernel: [17018.743601] nvidia-modeset: WARNING: GPU:0: Lost display notification (0:0x00000000); continuing.
Oct 17 21:18:08 europa kernel: [17046.820025] nvidia-modeset: WARNING: GPU:0: Lost display notification (0:0x00000000); continuing.
Oct 17 21:18:20 europa kernel: [17058.820933] nvidia-modeset: WARNING: GPU:0: Lost display notification (0:0x00000000); continuing.
A other point I just found is, Visual Studio Code does not start in this moment, but it starts if i disable the gpu-process for this application. All other programms starts so far they dont use the gpu. If i have a video running, the audio outputs runs normal without any stuttering.
if i start firefox, it starts stuttering but runs after couple of seconds. My Hardware acceleration settings are like use it if avaiable. It looks he try to get gpu acceleration but fails.
any ideas? gpu driver partial crashed? new processes cant get hardware device context? gpu blocks new processes?
the once what i can do is to restart system.