On Thu, Nov 18, 2021 at 2:59 PM dmanye <dmanye@xxxxxxx> wrote: > > hello, > > i have a problem and i think that it is in the nouveau driver. i hope > you can help me... > > i have 20 identical computers with debian bullseye (11) installed (only > "official" debian packages). sometimes some of them boot but the screen > is remains in black. if i connect remotely i can see that the X session > starts as expected (i have set a lightdm autologin). restarting lightdm > does not help, but rebooting the computer solves the problem but it > reappears here and there (when i boot all the computers, between 0 and 2 > usually get the black screen). > What kind of connector are you using? I have a gk208B GPU here so I could see if I hit this bug if I just reboot often enough on 5.10 > i've noticed that this three lines appear always in dmesg when it fails: > > [ 4.090415] nouveau 0000:07:00.0: disp: chid 0 stat 00004414 reason 4 > [INVALID_ARG] mthd 0414 data 00000000 code 00000001 > [ 4.090430] nouveau 0000:07:00.0: disp: chid 0 stat 10004418 reason 4 > [INVALID_ARG] mthd 0418 data 00000000 code 00000001 > [ 4.090445] nouveau 0000:07:00.0: disp: chid 0 stat 10004424 reason 4 > [INVALID_ARG] mthd 0424 data 00000000 code 00000001 > > i can solve it without rebooting by unloading and loading again the > nouveau driver > > kernel version is 5.10.46-4 > > nouveau driver debian package is 1:1.0.17-1 > > i attach dmesg log in case it could help. > > please don't hesitate to ask for more info if you need it. > > thank you in advance. > >