Comment 17 for bug 416001

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.