I have a Thinkpad x41 tablet, under Ubuntu 12.04 / since a few hours 13.04.
Few days ago I tested a second Monitor 22", switched monitor view by fn-F5 and installed the Catalyst Control Center but didn't use it (because I don't have an AMD? Whatever, CCC didnt't work or even start).
Since then my Ubuntu Desktop has changed:
- browsers / windows have no frames
- the launcher is missing
- the menu bar is missing
- can't change window size
This stays the same on the intern laptop screen, also on an extern screen.
Beside these effects, the PC seems still to work fine, can browse, start programs by the terminal,....
Anybody an idea what I've might done? Could the Monitor effect the Laptop itself? Do launcher, window frames and menue-bar all depend on a single driver or preference setting?
Just noticed, when I start firefox via terminal I get this answer, firefox runs although (with the described symptoms of the window -size and -style):
(process:2214): GLib-CRITICAL **: g_slice_set_config: assertion `sys_page_size == 0' failed