It seems that reverting x11-common to version 7.4+3ubuntu7 by "sudo apt- get install x11-common=7.4+3ubuntu7" makes the bug go away again.
-- afte recent update which included xorg, xserver etc causes low-graphics mode error at start https://bugs.launchpad.net/bugs/491483 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