still get it with the Kubuntu Karmic RC1( ati 200M laptop ) after an
kubuntu 9.04 upgrade but also from a liveCD. There's no xorg.conf by
default and it does it so I created a simple one and still get it with
both "ati" and "radeon" xorg drivers. But, it does not happen I used
"vesa"
I've also tried a bunch of individual things like vga=791 in grub boot, and
each of the items in the following xorg.conf file individually and as a group.
FYI, turning off AIGLX reduced idling CPU usage from about 40% down to the
single digits.
Section "Device"
Identifier "Configured Video Device"
#Driver "radeon"
#Driver "vesa"
Driver "ati"
EndSection
Section "Monitor"
Identifier "Configured Monitor"
EndSection
Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
EndSection
Section "Extensions"
Option "Composite" "0" # disable
EndSection
Section "Module"
Load "glx"
EndSection
Section "ServerFlags"
Option "AIGLX" "off"
Option "blank time" "0"
EndSection
Section "DRI"
Mode 0666
EndSection
--
switching to current logged in user freezes gdm
https://bugs.launchpad.net/bugs/78470
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