Package: gnome-control-center Version: 1:3.14.1-1 Severity: serious Hello,
I have a dual monitor setup, to which I connect via Dell docking station with Dell E7440. Both monitors are connected to docking station via DVI ports. You also might find following useful: ahodzic@mx-e7440:~$ lspci | grep -i vga 00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b) Regardless, when computer is connected to docking station, both displays are outputted and everything's fine. https://hodzic.org/img/dualmonitor.png xrandr: ahodzic@mx-e7440:~$ xrandr Screen 0: minimum 320 x 200, current 3840 x 1080, maximum 8192 x 8192 eDP1 connected (normal left inverted right x axis y axis) 1920x1080 60.05 + 59.93 1680x1050 59.95 59.88 1600x1024 60.17 1400x1050 59.98 1280x1024 60.02 1440x900 59.89 1280x960 60.00 1360x768 59.80 59.96 1152x864 60.00 1024x768 60.00 800x600 60.32 56.25 640x480 59.94 HDMI1 disconnected (normal left inverted right x axis y axis) DP1 disconnected (normal left inverted right x axis y axis) HDMI2 disconnected (normal left inverted right x axis y axis) DP2 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 531mm x 299mm 1920x1080 60.00*+ 1280x1024 75.02 60.02 1152x864 75.00 1024x768 75.08 60.00 800x600 75.00 60.32 640x480 75.00 60.00 720x400 70.08 DP3 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 299mm 1920x1080 60.00*+ 1280x1024 75.02 60.02 1152x864 75.00 1024x768 75.08 60.00 800x600 75.00 60.32 640x480 75.00 60.00 720x400 70.08 DP4 disconnected (normal left inverted right x axis y axis) ahodzic@mx-e7440:~$ However, every time I disconnect computer from the docking station, my gnome session will be restarted. Please be inform that during the disconnect from docking station, it's also common for whole system to freeze up and only option being to do a hard restart. i.e: https://hodzic.org/img/dualmonitor_disconnect_error.jpg If computer was on without being connected to docking station, once connected dual monitor setup won't be detected. It will only be detected if I restart my GNOME session or log out/log in. https://hodzic.org/img/dualmonitor2.png ahodzic@mx-e7440:~$ xrandr Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192 eDP1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 309mm x 173mm 1920x1080 60.05 + 59.93* 1680x1050 59.95 59.88 1600x1024 60.17 1400x1050 59.98 1280x1024 60.02 1440x900 59.89 1280x960 60.00 1360x768 59.80 59.96 1152x864 60.00 1024x768 60.00 800x600 60.32 56.25 640x480 59.94 HDMI1 disconnected (normal left inverted right x axis y axis) DP1 disconnected (normal left inverted right x axis y axis) HDMI2 disconnected (normal left inverted right x axis y axis) ahodzic@mx-e7440:~$ Please note, this setup only works with >= 3.17 kernel, otherwise only one screen will be detected (both screens will be mirrored). Thus, you'll only be able to use one screen, but there are no problems during connect/disconnect from the docking station. Meaning this problem also might be related to the kernel itself. Please inform me if you have any additional questions and/or comments. Regards, Adnan --- System information. --- Architecture: amd64 Kernel: Linux 3.17-1-amd64 Debian Release: jessie/sid 600 testing security.debian.org 600 testing ftp.nl.debian.org 500 trusty ppa.launchpad.net 500 testing-updates ftp.nl.debian.org 300 stable dl.google.com 200 unstable ftp.nl.debian.org 100 jessie-backports ftp.nl.debian.org 100 experimental ftp.debian.org --- Package information. --- Package's Depends field is empty. Package's Recommends field is empty. Package's Suggests field is empty.
