[Nouveau] Handling GeForce GTX 850M GPU on Arch Linux

[caocoa at mail2tor.com]

Ok thanks, I'll keep to it for now. Would you like me to (try to) fill a
bug report report for that?
By the way, if you come to work on that bug, I'll be glad to experiment
your solution on my machine :)

Caocoa

> On 18.05.2015 01:46, Ilia Mirkin wrote:
>> Your errors are most likely due to:
>>
>> [    2.421428] nouveau  [     PFB][0000:01:00.0] RAM size: 1975398418
>> MiB
>>
>> I'm guessing you don't *actually* have 1.9PB of VRAM. At least one
>> other person with a GM108 was seeing a similar issue. You're getting a
>> bunch of other failed reads, looks like we're somehow not bringing the
>> card up properly. The most immediate "fix" is to just disable nouveau
>> entirely -- boot with nouveau.modeset=0.
>>
>> Cheers,
>>
>>   -ilia
>>
>
>
> As the IGPs "tend" to "steal" system memory:
>
> [   21.733864] nouveau  [     PFB][0000:01:00.0] RAM type: stolen system
> memory
> [   21.733883] nouveau  [     PFB][0000:01:00.0] RAM size: 256 MiB
> [   21.787222] nouveau  [     DRM] VRAM: 256 MiB
>
> can we reverse the process in this case, and "steal" a few GB of VRAM for
> a system memory?
> I mean there are more than enough.
>
>
>