On Sat, 17 Sep 2016 09:37:48 +0200 Michael Biebl <bi...@debian.org> wrote: > Am 17.09.2016 um 01:09 schrieb Erik Tews: > > > After startup, gdm doesn't show up and just shows a grey screen. Looking at syslog reveals the reason: > > > > syslog:Sep 16 23:27:25 matte kernel: [ 172.983123] gnome- shell[3206]: segfault > > at 10 ip 00007f8e7c85d6c4 sp 00007ffd151d0a80 error 4 in libwacom.so.2.4.6[7f8e7 > > c85a000+9000] > > > > Since I haven't updated libwacom2 in the last 2 weeks, but gnome- shell was recently updated, I assume this is due to a problem in gnome- shell. > > > > There is also a temporary fix, just run: rmmod wacom, and then restart gdm, and you can use it again, of course without the touchscreen. > > > > Unfortunately, in upstream, I cannot see any kind of commit between 3.21.92 and 3.21.91 that might cause such a problem. > > Can you downgrade gnome-shell (and gnome-shell-common) to version > 3.21.91-2 (from testing), reboot and test if the problem is still > reproducible? > > If not, does downgrading libmutter0i, mutter-common, mutter to 3.21.91-2 > fix the problem? > > > -- > Why is it that all of the instruments seeking intelligent life in the > universe are pointed away from Earth? >
Downgrading gnome-shell (and gnome-shell-common) does not help. However, downgrading libmutter0i, mutter-common, and mutter does the trick. Note that I also updated libwacom2 to 0.22-1, as specified in bug 838047. On its own, that did not do the trick, but when I downgraded the various mutter packages, the problem went away.
