I also have an old Dell latitude laptop with a 1GHz Celeron and 512 MB
ram with ATI Technologies Inc Radeon Mobility M6 LY video and with a
clean install of 32 bit karmic, I could not run system-monitor. It
would open a window with random horizontal lines. Also the GL
screensavers were very slow and the cosmos screen saver also exhibited
the random horizontal lines with no visible image.
glxgears showed a frame rate of 1500fps. I know it's not a benchmarking
program...
I created an xorg.conf and this is what is in it:
Section "Device"
Identifier "ATI Technologies Inc Radeon Mobility M6 LY"
Driver "ati"
BusID "PCI:1:0:0"
Option "AGPMode" "4"
Option "AGPSize" "64" # default: 8
Option "RingSize" "8"
Option "BufferSize" "2"
Option "EnablePageFlip" "True"
Option "EnableDepthMoves" "True"
Option "SWcursor" "off" #Faster than default (on)
Option "AccelMethod" "EXA" #or XAA, which is the default and
may be more stable
Option "DynamicClocks" "on"
Option "BIOSHotkeys" "on"
Option "RenderAccel" "true" # Enables hardware acceleration
Option "DynamicClocks" "on" # Adds clock scalability / power
management for the video card
EndSection
After restarting x and also after trying a reboot, I still have reliable
suspend/resume, all the video artifact has vanished, system-monitor
works properly GL screensavers run pretty smoothly and glxgears now
shows 2400fps.
I do notice if I have more than 1 window open, there is a little
sluggishness if you try to move them, but I'm not sure if that was there
before.
--
Notification and similar dialogs are displaying corrupted after update on Karmic
https://bugs.launchpad.net/bugs/416001
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