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

[Pierre Moreau]

Your first reply did also sent it to the mailing list. :-)

[1] is indeed the correct site to report the bug, with Product=xorg and Component=Driver/nouveau.

Pierre


> On 21 May 2015, at 16:48, caocoa at mail2tor.com wrote:
> 
> OK, I'll do that when I'll have a bit more free time, but likely within
> the 10 next days. Shall I fill the report on this site[1] ?
> 
> I've read this page[2], I'll try to comply to your needs :)
> 
> Caocoa
> 
> [1] https://bugs.freedesktop.org
> [2] https://wiki.freedesktop.org/nouveau/Bugs/
> 
> P.S.: I've previously sent this message only to the last replier instead
> of the mailing list, here I fix it.
> 
>> On 20 May 2015 at 17:11,  <caocoa at mail2tor.com> wrote:
>>> 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 :)
>> A bug report would be great.
>> 
>> Could you also attach a mmiotrace[1] of the NVIDIA binary driver, and
>> another log of nouveau failing with "nouveau.debug=trace
>> log_buf_len=1M" in your kernel boot options.
>> 
>> Thanks,
>> Ben.
>> 
>> [1] http://nouveau.freedesktop.org/wiki/MmioTrace/
>> 
>>> 
>>> 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.
>>>> 
>>>> 
>>>> 
>>> 
>>> 
>>> _______________________________________________
>>> Nouveau mailing list
>>> Nouveau at lists.freedesktop.org
>>> http://lists.freedesktop.org/mailman/listinfo/nouveau
>> 
> 
> 
> _______________________________________________
> Nouveau mailing list
> Nouveau at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/nouveau

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