It looks like this behaviour was related to "mutter". Upgrading from 3.18.1 -> 3.18.3 fixed the problem for me. Now dmesg is clean and I get the usual behaviour when attaching/detaching external monitors.
Hope this helps. Thanks. On Sun, 20 Mar 2016 11:51:19 +0100 surf <[email protected]> wrote: > I am experiencing the same behaviour both with VGA and HDMI. > > The only difference is that my system freezes few seconds after > switching to tty1. > > My /var/log/messages displays this two lines right before the freeze: > Mar 18 12:06:38 kernel: [11136.909382] traps: gnome-shell[2859] trap > int3 ip:7f9d31adb87b sp:7ffe42e5e8f0 error:0 > Mar 18 12:06:42 kernel: [11140.123641] gnome-shell[4195]: segfault at > 272bc2d290 ip 00007fde5b4384fc sp 00007ffe88e3a4c0 error 4 in > libmutter.so.0.0.0[7fde5b3b2000+fc000] > > Thanks. > >
