Ok, it wasn't the new AMD ATI Drivers what "seemed" to solve the problem, which is still present.
This is what I just did: I've removed all packages fglrx, xserver-xorg-video-ati and xserver- xorg-video-radeon. I reinstalled xserver-xorg-video-ati and the mesa libraries. I deleted the xorg.conf. $ sudo dpkg-reconfigure xserver-xorg-video-ati when I rebooted, the laptop screen (I have dual monitor, with a samsung lcd monitor too) wasn't flickering anymore, but the LCD screen wasn't in the correct resolution. Then I set up the monitors resolution, the system asked me to logout and the flickering was back. So I installed the fglrx packages again: $ sudo apt-get install fglrx* When I rebooted, the flickering was still present. Then I wrote: $ sudo dpkg-reconfigure xserver-xorg-core And when I rebooted the flickering was gone, but... "Desktop Effects can't be enabled". What can I do? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/665233 Title: Ubuntu Maverick with ATI RADEON screen corruption -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs