[Mesa-dev] [status][help]pipe-video on Loongson3A(mipsel) platform with r600

Christian König deathsimple at vodafone.de
Thu Aug 4 07:26:18 PDT 2011

Am Donnerstag, den 04.08.2011, 13:41 +0800 schrieb fykcee1 at gmail.com:
> I guess that may be related with driver or DRM stack, after playback,
> my desktop corrupts
> http://dev.lemote.com/files/upload/software/temp/newmobcal1920-desktop-corrupt.png
> (Similar with "-vc ffmpeg12vdpau -vo vdpau).

I've seen something very similar at the very beginning of pipe-video
development, back then it was related to some invalid offset
calculations inside the kernel module, but that was fixed long ago.

What we see here is definitely some corruption of vram wich isn't
related to video playback all together, maybe a piglit run could help
narrowing down the problem a bit.

> > I don't know how close to rv670 rs780 is, but I have artifact issues with my
> > rv670 that don't show with my rv790.
Not very, if I remember correctly rs780 is an igp chipset with r7xx
instruction set directly wired to the motherboard, while rv670 is an
"normal" PCIe card with r6xx instruction set. I was able to narrow down
your problems with the rv670 to somewhere in the instruction set
compiler, so I don't think that these two bugs are related to each

> > If you can get it to display I would interested what -
> >
> > http://www.andyqos.ukfsn.org/Pendulum.mpg
> No, this renders a corrupted playback
> http://dev.lemote.com/files/upload/software/temp/Pendulum-playback.png,
> but doesn't cause my desktop corruption.
I would bet that it has something todo with the resolution/ maximum
texture size. Try the tex3d-maxsize and fbo-maxsize tests in piglit, and
see what the outcome of this is.


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