Ubuntu 12.04 Nvidia Compiz Expo Mipmap

Bug #991180 reported by xgong on 2012-04-29
42
This bug affects 8 people
Affects Status Importance Assigned to Milestone
Compiz
High
Sam Spilsbury
Compiz Core
High
Sam Spilsbury
compiz (Ubuntu)
Undecided
Sam Spilsbury

Bug Description

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

Related branches

Launchpad Janitor (janitor) wrote :

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

Changed in compiz (Ubuntu):
status: New → Confirmed
Afzal (afzalnaj) wrote :

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

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.

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.]

tags: added: patch
Changed in compiz (Ubuntu):
assignee: nobody → Sam Spilsbury (smspillaz)
Changed in compiz-core:
status: New → In Progress
importance: Undecided → High
assignee: nobody → Sam Spilsbury (smspillaz)
Changed in compiz:
assignee: nobody → Sam Spilsbury (smspillaz)
importance: Undecided → High
status: New → In Progress
Changed in compiz-core:
status: In Progress → Confirmed
fcole90 (fcole90) wrote :

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.

tags: added: desktop-bugscrub-triaged
Changed in compiz-core:
status: Confirmed → In Progress
Changed in compiz (Ubuntu):
status: Confirmed → In Progress
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