nouveau graphical corruption in 3.13.2

[Ilia Mirkin]

On Sat, Feb 22, 2014 at 10:45 PM, Daniel J Blueman <daniel at quora.org> wrote:
> On 9 February 2014 02:57, Ilia Mirkin <imirkin at alum.mit.edu> wrote:
>> On Sat, Feb 8, 2014 at 10:38 AM, Daniel J Blueman <daniel at quora.org> wrote:
>>> Interestingly, there was graphical failure booting 3.6.11, even
>>> nvidia-current fails to initialise, but these two issues could be due
>>> to running the Xorg stack in Ubuntu 14.04 pre-release. Using
>>> nouveau.noaccel=1 works great for the first X session, but after
>>> logging out, lightdm and the next session experiences this consistent
>>> screen corruption:
>>>
>>> http://quora.org/nouveau-corruption.jpg
>>
>> Does that just happen in 3.6.11 or even in 3.13? If the latter, that.
>> points to some key lack of understanding of... something. With
>> noaccel, we're not using pgraph or anything fancy -- it's just a
>> framebuffer, basically. So if we can't even render _that_ right...
>>
>> Hopefully someone else will pipe up re your other issues -- my
>> knowledge base on this is exhausted :(
>
> Interestingly, it turns out that the screen corruption occurs on every
> boot (booting with nouveau.noaccel=1 for now), and I can consistently
> work around it by one suspend-resume cycle.

Does booting with nouveau.config=NvForcePost=1 help?