[Nouveau] nouveau kms causing hibernation problems

[Anders Eriksson]

Hi Marcin,

Is this a known situation about to be addressed? Is there anything I can do to
fix it?

aeriksson at fastmail.fm said:
> koriakin at 0x04.net said:
>> There are not that many users of NV04/NV05.... 
>
> I'm starting to feel unique. Have to keep the museum running...
>
>> This may be a result of a known bug in our BIOS script interpreter. Go to
>> your  kernel tree, drivers/gpu/drm/nouveau/nouveau_bios.c, go to
>> init_compute_mem  function, and try commenting out the "bios_wr32(bios,
>> NV_PFB_REFCTRL,  NV_PFB_REFCTRL_VALID_1);" line.
>
> Removing that line sure changed things. The monitor still looses signal
> early, but the HD led flashes on and eventually it hibernates ok.
>
> Upon resume, I get to the reloading-from-suspend progress bar in fbcon, but
> after that the screen goes black and the thing freezes. The keyboard's leads
> are dead too. 

/Anders