I experience a similar behavior, and luckily syslog has a relatively useful error message: 'gnome-shell[8568]: segfault at 48 ip b6cf7981 sp badacf00 error 4 in libcogl.so.5.0.0[b6cd4000+77000]'
Now quick googling revealed its related to a libcogl bug as reported herE: https://bugzilla.gnome.org/show_bug.cgi?id=660184 and fixed here: http://git.gnome.org/browse/cogl/commit/?id=1f61868fed78457c0da487d2a270804fb70dce8f However, as the original report is several months old, this might not be related. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org