Since I have updated to Ubuntu 13.04, every time when I plug in a second monitor compiz crashes.
Sometimes, when my computer has a high CPU Value, compiz also crashes. When Compiz crashes, the launcher-bar and the menu and frames of the windows are missing and I have to restart my computer.
I think the problem could be the graphic card:
I have a HP Probook 4720s. When I run
lspci, the following line shows my grapic card:
`01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RV710/M92 [Mobility Radeon HD 4350/4550]`
If you need more information, tell me how to gather the needed information and i will post it.
Thanks for your help,