Bug#423739: libgl1-mesa-dri: banding in rendering when using blending for transparency

[Michel Dänzer <daenzer@debian.org>]

On Tue, 2007-05-15 at 01:14 -0400, Dan Torop wrote: 
> Hi, Michael,

Close, but no cigar. ;)


> If I disable DRI and restart the X server, then rerun the test program
> with or
> without forced indirect rendering like so:

[...]

> Then I see a very nice 50% gray screen and no banding in all the tests
> against 6.5.2-4.

Well, then libgl1-mesa-dri is out of the picture as everything's done by
software rendering built into xserver-xorg-core. Anyway, this seems to
confirm that you reported the bug against the right package.


> Please let me know if there is anything else I could do to help
> isolate this?

Please try verifying the indication that it's a Debian specific issue.
E.g., does building the patched Debian source tree the same way as you
built the upstream tree produce a working or defect r200_dri.so? Are the
same compiler flags used? ...


-- 
Earthling Michel Dänzer           |          http://tungstengraphics.com
Libre software enthusiast         |          Debian, X and DRI developer