Hi Gabor. Check if this problem was solved in latest openchrome revision.
Please build/install the latest openchrome driver The detail build instruction for Ubuntu/Debian is available at: https://help.ubuntu.com/community/OpenChrome Next attach your /var/log/Xorg.0.log file. I think it could be Linux kernel related problem, for example: https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/574573 https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/677440 ** Also affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/422202 Title: [P4M900] Laptop TFT flickers after wake up from S3 sleep -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs