That's the switcher frame being left behind bug. This will be fixed in the next natty update
On Tue, Jun 7, 2011 at 7:07 AM, Paul van Genderen <723...@bugs.launchpad.net> wrote: > Either this hasn't been fixed yet or there's another issue which hasn't > been properly triaged yet. It occurs rather frequently, even inside the > text box where I'm writing this comment right now. It's as if there's a > hidden-but-always-on-top U-shaped window, but it could be a box as well. > I wanted to make a screencast but I could only click the istanbul icon > once. I think it's still recording. Anyway, I used a camera phone to > record the attached video but I couldn't see it myself because of > #327082. FGLRX is enabled. > > ** Attachment added: "bug.webm" > > https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/723014/+attachment/2157922/+files/bug.webm > > -- > You received this bug notification because you are a member of Canonical > Desktop Experience Team, which is a bug assignee. > https://bugs.launchpad.net/bugs/723014 > > Title: > New window tracking system breaks in the case where windows try to > restack relative to destroyed windows that were never mapped > > Status in Unity: > Fix Released > Status in “compiz” package in Ubuntu: > Fix Released > Status in “unity” package in Ubuntu: > Fix Released > Status in “compiz” source package in Natty: > Fix Released > Status in “unity” source package in Natty: > Fix Released > > Bug description: > Binary package hint: compiz > > Currently we aren't tracking windows that haven't been mapped in the > case that they are override redirect, however sometimes these windows > can be destroyed by the time CreateNotify arrives and we might get > Configure requests to try and stack windows relative to them however > since they are not in our internal window lists this will fail and > cause weird things to happen. For example > > - Invisible windows (windows being managed the wrong way around) > - On suspend resume, gnome-screensaver creates a few windows then destroys > them right afterwards, this causes weirdness when it tries to stack relative > to those windows and fails. > -- Sam Spilsbury -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/723014 Title: New window tracking system breaks in the case where windows try to restack relative to destroyed windows that were never mapped -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
