https://bugs.freedesktop.org/show_bug.cgi?id=36513
Summary: Screen sometimes garbled on Radeon HD 6310 after
coming back from dpms off (?)
Product: xorg
Version: 7.6
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/Radeon
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
I am running xubuntu 11.04 beta on a Thinkpad X120e machine, which has a AMD
E-350 APU ("Radeon HD 6310" graphics).
The machine is running the default xserver-xorg (1:7.6+4ubuntu3) and
xserver-xorg-video-radeon (1:6.14.0-0ubuntu4), apart from that I am using a
vanilla 2.6.39-rc3 kernel.
I am sometimes seeing weird graphics artifacts after bringing the display back
from sleep, that look like analog TV and only go away after a reboot of the
machine. I have recorded a video of my desktop in such a state:
http://www.youtube.com/watch?v=X9POL1XyZos
There is no related entries in dmesg when this occurs. I am also not completely
sure about the mechanism that makes my screen go off (whether it's DPMS or
something else) - but I suspect that it's due to the "Put display to sleep when
computer is inactive" and "Switch of display when the computer is inactive"
settings in Xfce Power Manager.
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