I confirmed that this is still an issue on 9.04. Once I got it to the native resolution (it wasn't auto detected properly on install), removing AC power which dims the backlight causes screen image corruption. Ctrl+alt+f1, ctrl+alt+f7 fixes the corruption.
I confirmed that this is still an issue on 9.04. Once I got it to the native resolution (it wasn't auto detected properly on install), removing AC power which dims the backlight causes screen image corruption. Ctrl+alt+f1, ctrl+alt+f7 fixes the corruption.