I had an issue I already described earlier - see part 1: Ubuntu 10.04 with docking station.
Since then I had several issues of having TV1 noticed by accident even when doing nothing or same with my internal laptop screen (LVDS1) when I am working with the external monitor only. The annoying things are three when this happens:
- I can accidently move the mouse out of the window taking a while to bring it back.
- In my compiz I have defined that right-clicking on the border of the screen switches to the next desktop. That does not work any more as the border is not reached when I move the moust to the border of the visible screen.
- Windows may be displayed on the invisible part of the screen so I have them in the task bar but don't see them on screen.
Now I am pretty sure that it is the screensaver that is the culprit here. Disabling the screensaver never brought the issue back again. Only drawback: When I leave the machine I manually have to lock the screen pressing CTRL+ALT+L.
Same thing of second monitor accidently recognized happened in about 75 % when starting TeamViewer (which is my favorite remote assistence tool). Today I finally filed a bug and guess what - problem already solved (thanks to Daniel Stiefelmaier at TeamViewer support)!
Dear Martin,Yeah, that did it!
I found a possible solution to that. Please open a console and run
Then take a look at the log:
You should see some xrandr lines. Then run
Create the key HKEY_CURRENT_USER\Software\Wine\X11 Driver
there, create a String "UseXRandR" and set its value to "N".
Close the registry, and repeat the other commands:
Now, there should be no xrandr lines.
Related posts: Ubuntu 10.04 with docking station (part 1), Ubuntu 10.04 experiences, OpenOffice and LibreOffice starts slow.