natty beta Ubuntu Classic (No effects) SDL|openGL window always on top

I experience the same thing, I'm using the ati catalyst drivers. I would offer more info, but unfortunately I don't know which package is responsible for handling overlay accelerated video.

I too have issues. I'm on a Dell Studio 1458. ATI Mobility Radeon HD 5400. I'm using Ubuntu Classic with no effects. Someone else seems to be having an issue and posted a bug on here https://bugs.launchpad.net/ubuntu/+source/metacity/+bug/776784

Same again on a Dell Studio 1555, ATI Mobility Radeon 4500, catalyst drivers.

I am experiencing the same, fglrx driver and hd5650 on Natty x86_64. There is something I can do to help the developers?

Guys those two bugs to me look basically the same...what to do?
https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/670345

As original reporter of this issue I can confirm the issue still exists as of today.

The thread specified above cannot be updated by the original reporter as he has changed hardware.

So what to do now?

I am also experiencing this but it's not exclusive to OpenGL windows. Any default video output will do this.
Going to gstreamer-properties and changing the video output from "Default" to "X Window System(No Xv)" fixes it for media players. This does not fix for example video output from Lightspark or glxgears.

Perhaps there is a system-wide way to change video output to "X Window System(No Xv)" and this will resolve the issue?

I too am using the Catalyst driver with a classic session. So this seems to be a bug with the interaction of Catalyst with Metacity.

Shimi, I think your solution is a temporary workaround - and I thank you a lot for it - but it cannot be considered a fix. In fact disabling xv means losing hardware acceleration and overloading the cpu, which is not good : (
http://en.wikipedia.org/wiki/X_video_extension

This sounds familiar. Unchecking /apps/metacity/general/capture_before_unmap in gconf-editor should solve the issue. Last time I discussed this with Bryce Harrington he assured me that this was a bug in metacity, not in fglrx.

Felix thank you for your help, but unchecking /apps/metacity/general/capture_before_unmap in gconf-editor didn't solve the issue, at least not for me :(

Log out and log back in after unchecking capture_before_unmap.

I can confirm the fix. Thank you Felix :)

My fault xD I can confirm the fix too, thank you all guys :D

Confirmed the fix using gconf-editor and unchecking "unmap..." on Natty.

The bleeding-in of some of the window contents into other windows when switching desktops as well as the partial non-repaint of the title bar as described in

https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/770283 was resolved by this.

EOL have been reached, so no more maintenance. If that issue still exist, then report again using ubuntu-bug.