Public bug reported:
On Ubuntu MATE 17.10 daily I am experimenting with GDK scaling. I have
exported the following in to the XSession:
GDK_SCALE=2
GDK_DPI_SCALE=0.5
MATE Tweak can be used to switch between window managers and also select
if windows controls are displayed on the left or the right.
* When window controls are on the right switching to Compiz works just fine.
* When window controls are on the left switching (or starting Compiz)
segfaults with the following error:
(gtk-window-decorator:2990): libmetacity-ERROR **: Could not find a
button to strip. n_left = 1 n_right = -1
ProblemType: Crash
DistroRelease: Ubuntu 17.10
Package: compiz-gnome 1:0.9.13.1+17.10.20170704-0ubuntu1
ProcVersionSignature: Ubuntu 4.11.0-10.15-generic 4.11.8
Uname: Linux 4.11.0-10-generic x86_64
ApportVersion: 2.20.5-0ubuntu5
Architecture: amd64
CurrentDesktop: MATE
Date: Tue Jul 18 14:22:39 2017
ExecutablePath: /usr/bin/gtk-window-decorator
InstallationDate: Installed on 2017-06-10 (37 days ago)
InstallationMedia: Ubuntu-MATE 17.10 "Artful Aardvark" - Alpha amd64 (20170606)
ProcCmdline: /usr/bin/gtk-window-decorator
ProcEnviron:
LANGUAGE=en_GB:en
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_GB.UTF-8
SHELL=/usr/bin/fish
Signal: 5
SourcePackage: compiz
StacktraceTop:
() at /lib/x86_64-linux-gnu/libglib-2.0.so.0
g_log_writer_default () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
g_log_structured_array () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
g_log_structured () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
() at /usr/lib/x86_64-linux-gnu/libmetacity.so.1
Title: gtk-window-decorator crashed with signal 5
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip libvirt lpadmin plugdev sambashare sudo
** Affects: compiz (Ubuntu)
Importance: Medium
Status: New
** Tags: amd64 apport-crash artful compiz-0.9
** Information type changed from Private to Public
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packagers, which is subscribed to compiz in Ubuntu.
https://bugs.launchpad.net/bugs/1705060
Title:
gtk-window-decorator crashed when windows controls are on the left and
GDK_SCALE=2
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