Sorry, my bad. This was the last update that fixed the issue for me: mutter-common:amd64 (3.18.3-1 -> 3.18.3-2)
On 21/03/2016 22:55, Raphaël Beamonte wrote: >> 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. > > Not the case for me, as you can see in my report, mutter was already in > 3.18.3 in my system while having the bug. >