[Nouveau] [INVALID_ARG] mthd 0414

[Karol Herbst]

On Fri, Nov 19, 2021 at 9:10 AM dmanye <dmanye at urv.cat> wrote:
>
> On 18/11/21 16:13, Karol Herbst wrote:
> > On Thu, Nov 18, 2021 at 2:59 PM dmanye <dmanye at urv.cat> 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'm using vga cables. when the bug appears i can confirm with other
> computer that is not a cable/monitor problema. should i try other
> connector when the bug appears in case it chooses other output by
> mistake...?
>
> thanks.
>

yeah.. not quite sure yet. I tried it out with my gk208b gpus, but
couldn't hit anything. Maybe using VGA makes the difference here. Or
something else is different. Might also already be fixed in 5.16...
too many unknowns still. I will do another round of testing with VGA
and see how that ends.

> >
> >> 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.
> >>
> >>
>