After some investigation on my own, I found the reason: A outdated ppa package for the Intet graphics which thought was automatically uninstalled with the upgrade to Karmic. After installation of the Karmic package xserver-xorg-video-intel everything works fine.
** Changed in: linux (Ubuntu) Status: New => Invalid -- [Acer TravelMate 6410] suspend/resume failure https://bugs.launchpad.net/bugs/466974 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs