I changed the setting in power management to "Do nothing" when laptop lid is closed, freezes not occuring now.
-- freeze xserver https://bugs.launchpad.net/bugs/377506 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
