Bug#795384: mate-control-center: can only use mirror with two monitors

Francesco Potortì Potorti at isti.cnr.it
Thu Aug 13 15:09:26 UTC 2015

Package: mate-control-center
Version: 1.10.1+dfsg1-1~exp1
Severity: normal

While version 1.8.3 of mate-display-properties crashed as soon as
called, this version does not crash.  However, the problem persists: I
cannot use any more my two-monitor config.

When mate-display-properties is called, it shows two monitors, but
apparently cannot detect their properties and proposes a mirror conf.
When forced to use both, and the different resolutions are manually set,
nothing happnes even after pressing the Apply button.  Moreover, if I
press the Make default button, it says 

Error creating textual authentication agent: Error opening current
controlling terminal for the process (`/dev/tty'): No such device or

The latter error also happens when detaching the second monitor and
using one only (as I am forced to do now).

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'testing-proposed-updates'), (101, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.12-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=it_IT.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages mate-control-center depends on:
ii  caja-common                 1.8.2-4
ii  desktop-file-utils          0.22-1
ii  gsettings-desktop-schemas   3.16.1-1
ii  libatk1.0-0                 2.16.0-2
ii  libc6                       2.19-19
ii  libcairo2                   1.14.2-2
ii  libcanberra-gtk0            0.30-2.1
ii  libcanberra0                0.30-2.1
ii  libdbus-1-3                 1.8.20-1
ii  libdbus-glib-1-2            0.102-1
ii  libdconf1                   0.24.0-2
ii  libfontconfig1              2.11.0-6.3
ii  libfreetype6                2.5.2-4
ii  libgdk-pixbuf2.0-0          2.31.5-1
ii  libglib2.0-0                2.44.1-1.1
ii  libglib2.0-bin              2.44.1-1.1
ii  libgtk2.0-0                 2.24.28-1
ii  libice6                     2:1.0.9-1+b1
ii  libmarco-private0           1.8.3+dfsg1-4+b1
ii  libmate-desktop-2-17        1.10.1-1
ii  libmate-menu2               1.8.0-5
ii  libmate-slab0               1.10.1+dfsg1-1~exp1
ii  libmate-window-settings1    1.10.1+dfsg1-1~exp1
ii  libmatekbd4                 1.10.0-1
ii  libpango-1.0-0              1.36.8-3
ii  libpangocairo-1.0-0         1.36.8-3
ii  libpangoft2-1.0-0           1.36.8-3
ii  libsm6                      2:1.2.2-1+b1
ii  libstartup-notification0    0.12-4
ii  libunique-1.0-0             1.1.6-5
ii  libx11-6                    2:1.6.3-1
ii  libxcursor1                 1:1.1.14-1+b1
ii  libxext6                    2:1.3.3-1
ii  libxft2                     2.3.2-1
ii  libxi6                      2:1.7.4-1+b2
ii  libxklavier16               5.2.1-1
ii  libxml2                     2.9.1+dfsg1-5
ii  libxss1                     1:1.2.2-1
ii  marco-common                1.8.3+dfsg1-4
ii  mate-control-center-common  1.10.1+dfsg1-1~exp1
ii  mate-desktop                1.10.1-1
ii  mate-icon-theme             1.10.1-1
ii  mate-menus                  1.8.0-5
ii  mate-settings-daemon        1.8.3-3

mate-control-center recommends no packages.

Versions of packages mate-control-center suggests:
ii  gconf2  3.2.6-3

-- no debconf information

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