I was sable to reproduce the problem on my intel system: core i3 + GMA HD GPU + VGA cable.
Something notable is this: - The bug can be reproduced when Unity starts without multi-monitor support. Then you plug in an external monitor and configure the system for a multi-monitor configuration. - If Unity starts with multi-monitor config already enable, then the problem cannot be reproduce. The system works fine in multi-monitor configuration. I have tested the system in several configurations and multi-monitor was working fine. It is only the case mentioned above that causes problem. I have briefly tested my desktop system (ATI GPU + open source driver) but couldn't reproduce the problem. So there maybe something specific to intel here. There is a fix for the the original problem mentioned in this bug. ** Changed in: unity Status: Triaged => Confirmed -- You received this bug notification because you are a member of compiz packagers, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/810971 Title: External monitor causes screen corruption To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/810971/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : compiz@lists.launchpad.net Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp