System tray is partially shown outside the monitor when in dual monitor

[Luca Carlon]

Binary package hint: unity

1) Description:
escription: Ubuntu 11.04
Release: 11.04

2) unity:
  Installed: 3.8.12-0ubuntu1
  Candidate: 3.8.12-0ubuntu1
  Version table:
 *** 3.8.12-0ubuntu1 0
        500 http://it.archive.ubuntu.com/ubuntu/ natty-updates/main i386 Packages
        100 /var/lib/dpkg/status
     3.8.10-0ubuntu2 0
        500 http://it.archive.ubuntu.com/ubuntu/ natty/main i386 Packages

4) When in dual monitor the system tray of the rightmost monitor is partially outside of it. I noticed this in two different monitors with two different resolutions (for the attached monitor 1280x1024 and 1920x1080).
Even the desktop background image seems to go beyond the boundaries of the screen, I don't know whether these two facts are related or not.

3) I expect the the trays (for each monitor) reside entirely in the respective monitor. So that even the rightmost icon of the tray can be seen.

[digsim (andreas-ruppen)]

I have the same bug here with an NVidia TwinView. I Use the left-most screen (the attached one) as my primary, the laptop screen is on the right and used as secondary screen.

Upon setting up the TwinView works just fine. It seems that the problem appears when the screen is locked. Upon unlocking some parts of the System Tray are invisible (out of the screen). See the attached picture for more details.

[digsim (andreas-ruppen)]

I found a partial fix for these symptoms: When launching xrand in a terminal I get the following output:
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 320 x 175, current 3360 x 1080, maximum 3360 x 1980
default connected 3360x1080+0+0 0mm x 0mm
   1440x900 50.0 116.0
   1360x768 51.0 52.0
   1152x864 53.0
   1024x768 54.0 55.0 56.0 57.0
   960x600 58.0
   960x540 59.0
   840x525 60.0 61.0 62.0
   832x624 63.0
   800x600 64.0 65.0 66.0 67.0 68.0 69.0 70.0
   800x512 71.0
   720x450 72.0
   720x400 73.0
   700x525 74.0 75.0 76.0
   680x384 77.0 78.0
   640x512 79.0 80.0 81.0
   640x480 82.0 83.0 84.0 85.0 86.0 87.0
   640x400 88.0
   640x350 89.0
   576x432 90.0 91.0 92.0 93.0 94.0 95.0 96.0
   512x384 97.0 98.0 99.0 100.0 101.0
   416x312 102.0
   400x300 103.0 104.0 105.0 106.0 107.0
   360x200 108.0
   320x240 109.0 110.0 111.0 112.0
   320x200 113.0
   320x175 114.0
   3360x1080 115.0*
   1920x1980 116.0 117.0
(1440x900 is the resolution of the laptop whereas the resolution of the external monitro is 1920x1080). The output of xrandr shows that is is possible to "deactivate" the external screen by issuing:
xrandr --output default --mode 1440x900
Switching then back to the full resolution over both screen with
xrandr --output default --mode 3360x1080
resolves the problem, at least for a short amount of time.

This is just a quick and dirty hack when the menu bar gets really stucked up and access to it is needed. I should maybe add that both monitors are alinged on top therefore I don't think that the observed behaviour here is direcly linked to the bug https://bugs.launchpad.net/ubuntu/+source/unity/+bug/778256