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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Barts (HD6850): Failure in evergreen_surface_check_2d"
href="https://bugs.freedesktop.org/show_bug.cgi?id=75357#c11">Comment # 11</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Barts (HD6850): Failure in evergreen_surface_check_2d"
href="https://bugs.freedesktop.org/show_bug.cgi?id=75357">bug 75357</a>
from <span class="vcard"><a class="email" href="mailto:michel@daenzer.net" title="Michel Dänzer <michel@daenzer.net>"> <span class="fn">Michel Dänzer</span></a>
</span></b>
<pre>(In reply to Nix from <a href="show_bug.cgi?id=75357#c10">comment #10</a>)
<span class="quote">> FWIW, I have just started seeing behaviour very similar to this, also with an
> HD6850, though it is probably a distinct bug because all the software
> versions involved are very different.</span >
So it would probably be better to file your own report.
<span class="quote">> This happened after closely-adjoined upgrades of the kernel (from 3.19 to
> 4.0.3), the X server (from 1.15.1, yes, I know, it's because of the security
> holes I finally upgraded, to 1.17.1), the ATI driver (from 7.3.0-26 to
> 7.5.0.68, all "git describe" output from the unmodified trunk), Mesa (from
> 10.2.6 to 10.5.5), and LLVM (from 3.3 to 3.5.2), so the fault could, alas, in
> theory lie in any or all of these.</span >
It would be great if you could narrow that down a bit. The r600g driver doesn't
use LLVM, so that's probably not it. I agree it's most likely between Mesa or
the kernel, or maybe xf86-video-ati.
<span class="quote">> Glamor is not in use.</span >
Have you tried glamor to see if it happens with that as well?
Does
Option "ColorTiling2D" "off"
in /etc/X11/xorg.conf or the environment variable R600_DEBUG=no2d (or even
R600_DEBUG=notiling) for chromium work around the problem?
<span class="quote">> dpm is, and has been working flawlessly thank you very much, cutting my
> desktop's power consumption from 130W to 90W :) over the last year that's
> saved at least the price of the beer I owe you for the dpm work, Michel :)</span >
Sounds great, but I haven't done any DPM work, I think that beer would have to
go to Alex. :)</pre>
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