Actually, using nomodeset and the vesa driver as explained in https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/447892 works better, than the acpi=off. My sound now works and the power button doesn't switch it off immediately.
-- [i855] [karmic] X freezes with intel 855GM/82945G videocard https://bugs.launchpad.net/bugs/476817 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