This is affecting an increasing set of users; for instance, it seems to be the underlying problem in bug 1545238. My Thinkpad X220 is also showing the same problem, which suggests multiple Intel graphics systems may be affected.
See upstream bugs: https://bugzilla.kernel.org/show_bug.cgi?id=92171 and https://bugs.freedesktop.org/show_bug.cgi?id=89108 ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed ** Bug watch added: Linux Kernel Bug Tracker #92171 http://bugzilla.kernel.org/show_bug.cgi?id=92171 ** Bug watch added: freedesktop.org Bugzilla #89108 https://bugs.freedesktop.org/show_bug.cgi?id=89108 ** Bug watch added: freedesktop.org Bugzilla #93509 https://bugs.freedesktop.org/show_bug.cgi?id=93509 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1542939 Title: system freeze after vt switching To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1542939/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
