> > My problem is that sometimes the screen just freezes entirely, and I have to > > switch to another TTY and back in order to get it unstuck. But the same > > freeze will usually happen again after I get the things unstuck. Restart my > > PC doesn't fix the problem. > > I have a similar problem (with KDE). I upgraded from Debian 10 to > Debian 12.5. Then I discovered that the NVidia driver for my old GF108 > graphics card is no longer available. > > ... > > I updated another computer with an NVidia Quadro graphics card. NVidia > says the Debian nvidia-driver package works -- but it's not part of the > default net-install, and apt-get refuses to install it. And it refuses > to install the nvidia-tesla drivers. I gave up on compiling the drivers > I downloaded directly from NVidia, for the same reasons. And a laptop. > So they're running nouveau too (and occasionally freezing). > > Does nouveau cause the freezes?
I'm not sure if this is related, but a couple years ago I had multiple computer freezes possibly caused by nouveau. The screen froze; the keyboard and mouse were unresponsive. (If I remember correctly, the mouse pointer could be moved around on the screen, but it wouldn't do anything.) Sometimes I could ssh to the machine and run certain commands; often I would have to hold down the power button to force a shutdown and then start it back up (which produces lots of orphaned inodes until one does a clean reboot). In the logs, the kernel would report "general protection fault, probably for non-canonical address...," with a call trace including lines "nouveau_fence_new..." and "nouveau_gem_ioctl_pushbuf..." and "nouveau_gem_ioctl_new..." and "nouveau_drm_ioctl..." In my case, the GPU was a PNY Quadro K620. Similar issues seem to have been reported here: https://forums.debian.net/viewtopic.php?t=151941 and here: https://gitlab.freedesktop.org/drm/amd/-/issues/1585 Whether these issues are connected with the OP's problem, and whether the crashes have to do with nouveau or bad RAM or something else, I don't know. My "solution" was to stop using software (e.g. certain Web browsers) that seemed to have been running at the time of the crashes. Best regards, Greg Marks
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