Commen=
t # 11
on bug 75357<=
/a>
from Michel D=C3=A4nzer
(In reply to Nix from =
comment #10)
> 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.
So it would probably be better to file your own report.
> 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 se=
curity
> 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 trun=
k), Mesa (from
> 10.2.6 to 10.5.5), and LLVM (from 3.3 to 3.5.2), so the fault could, a=
las, in
> theory lie in any or all of these.
It would be great if you could narrow that down a bit. The r600g driver doe=
sn'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.
> Glamor is not in use.
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=3Dno2d (or even
R600_DEBUG=3Dnotiling) for chromium work around the problem?
> dpm is, and has been working flawlessly thank yo=
u very much, cutting my
> desktop's power consumption from 130W to 90W :) over the last year tha=
t's
> saved at least the price of the beer I owe you for the dpm work, Miche=
l :)
Sounds great, but I haven't done any DPM work, I think that beer would have=
to
go to Alex. :)