[Nouveau] [Bug 78863] [NV92] errors when starts gnome-shell - INVALID_VALUE class 0x8297 mthd 0x0e04 data 0xfebf0000

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78863

--- Comment #2 from mattia.b89 <mattia.b89 at gmail.com> ---
(In reply to comment #1)
> Are there any rendering issues, or just these errors?
> 
> $ lookup -a 92 -d NV01_SUBCHAN -- -v obj-class NV84_3D e04 0xfebf0000
> SCISSOR_HORIZ[0] => { MIN = 0 | MAX = 65215 }
> $ lookup -a 92 -d NV01_SUBCHAN -- -v obj-class NV84_3D e08 0xfebf0000
> SCISSOR_VERT[0] => { MIN = 0 | MAX = 65215 }
> 
> Those indeed appear to be invalid. I thought I had a thing clamping the
> value... What version of mesa are you using?
> 
> Hm, looks like the clamping is missing on the blit_3d path, but that'd only
> be an issue if someone had specified negative scissor bounds... hopefully
> the upper layers disallow that.

probably I have that issue/artifact: sometime, portion of a window isn't drawed
but because simply gray 

mesa-10.1.3-1

I don't have "lookup" command and I don't find how to get it....teach it to me

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