Ubuntu 12.04 Nvidia Compiz Expo Mipmap

[xgong]

Cannot enable mipmap in expo on Nvidia Card 9500mg. When mipmap is enabled, trigger expo will cause system freeze

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Afzal (afzalive)]

Confirmed for 9800m gts. Also causes system freeze if mipmaps are on in Static Application Switcher and Application Switcher

[Pierre-Loup A. Griffais (1auntzpad-0ut)]

This is not a driver bug; it's a regression caused by this change:

http://bazaar.launchpad.net/~compiz-team/compiz-core/0.9.8/revision/2881

Some of the GLX stuff _was_ context-dependent, since the code doesn't mark FBConfigs as mipmap-aware unless the EXT_framebuffer_object extension is supported by the GL context. However, uses of glGenerateMipmapEXT() throughout the runtime code are also adequately guarded by GL::fbo checks, so it should be safe to remove that particular check rather than moving the code back. The attached patch should fix all related issues.

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "Report mipmap-awareness of FBConfigs regardless or whether FBOs are known to be supported or not" of this bug report has been identified as being a patch. The ubuntu-reviewers team has been subscribed to the bug report so that they can review the patch. In the event that this is in fact not a patch you can resolve this situation by removing the tag 'patch' from the bug report and editing the attachment so that it is not flagged as a patch. Additionally, if you are member of the ubuntu-reviewers team please also unsubscribe the team from this bug report.

[This is an automated message performed by a Launchpad user owned by Brian Murray. Please contact him regarding any issues with the action taken in this bug report.]

[fcole90 (fcole90)]

I'm not able to reproduce the bug as I don't have such a card, but there's a patch available, and should be better to try it before closing the bug report.