Compiz

[nvidia] switcher+nvidia: Alt+Tab makes compiz hang and shows white preview windows

Bug #1006216 reported by Daniel van Vugt
28
This bug affects 13 people
Affects Status Importance Assigned to Milestone
Compiz
Fix Released
High
Compiz Linaro Team
Compiz 0.9.8.0
compiz (Ubuntu)
Fix Released
High
Unassigned

Bug Description

Using the switcher plugin with nvidia-current-updates (295.49) causes the display to freeze and/or white windows (and icons) to appear in the switcher window.

This doesn't happen if I use the nouveau driver with the same hardware.

Revision history for this message
Daniel van Vugt (vanvugt) wrote :

Oh dear. The problem isn't just upstream. I can reproduce it on precise, with compiz 1:0.9.7.8-0ubuntu1.

Changed in compiz (Ubuntu):
importance: Undecided → High
summary: - [nvidia] switcher+nvidia: Alt+Tab makes compiz hang ~20sec and shows
- white preview windows
+ [nvidia] switcher+nvidia: Alt+Tab makes compiz hang and shows white
+ preview windows
Sam Spilsbury (smspillaz)
Changed in compiz:
assignee: nobody → Sam Spilsbury (smspillaz)
Revision history for this message
Daniel van Vugt (vanvugt) wrote :

I have a hunch that this hang is a feedback loop caused by the XCreateWindow that switcher does. Perhaps drawing that X window is creating damage, which then feeds back into compiz and causes it to be redrawn in a positive feedback loop.

Revision history for this message
Daniel van Vugt (vanvugt) wrote :

I must remember to assign bugs to myself when I already have ideas of how to fix them :)

Revision history for this message
Launchpad Janitor (janitor) wrote :

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

Changed in compiz (Ubuntu):
status: New → Confirmed
Revision history for this message
Karol Bryd (karolbe) wrote :

I am *really* waiting for the fix. This is the bug which is keeping me from upgrading from 11.04 :(

I am buying (through Paypal) 12-pack of beer, let say Heineken, to the first person who will fix this bug. Anyone? :)

Revision history for this message
Daniel van Vugt (vanvugt) wrote :

Karol, I believe this bug is caused by the compiz mipmapping code. So you should be able to work around it by:

1. Install compizconfig-settings-manager
2. Run ccsm
3. CCSM > Window Management > Application Switcher > General > Mipmap = OFF

Omer Akram (om26er)
Changed in compiz:
status: New → Confirmed
Daniel van Vugt (vanvugt)
Changed in compiz:
milestone: 0.9.8.0 → 0.9.8.1
Revision history for this message
Daniel van Vugt (vanvugt) wrote :

This appears to have been fixed recently. I think it was the gles2 merge that did it (lp:compiz r3320).

Changed in compiz:
milestone: 0.9.8.2 → none
status: Confirmed → Fix Released
assignee: Sam Spilsbury (smspillaz) → Compiz Linaro Team (compiz-linaro-team)
Daniel van Vugt (vanvugt)
Changed in compiz:
milestone: none → 0.9.8.0
Revision history for this message
Daniel van Vugt (vanvugt) wrote :

It would seem...

This bug was fixed in the package compiz - 1:0.9.8.0-0ubuntu1

---------------
compiz (1:0.9.8.0-0ubuntu1) quantal-proposed; urgency=low

  * debian/control, debian/rules:
    - enable gles on armel and armhf
    - use dh-translations rather than custom code

  [ Sam Spilsbury ]
  * Enable OpenGL ES building
    - Refresh debian/patches/workaround_broken_drivers.patch
    - Remove non-ported plugins from compiz-plugins
    - Add FindOpenGLES2.cmake to compiz-dev

  [ Timo Jyrinki ]
  * New upstream release.
    - Code to make compiz work on GLES. This includes several changes
      to the compiz API. (LP: #201342) (LP: #901097) (LP: #1004251)
      (LP: #1037710)
    - Draft first 0.9.8.0 NEWS and bump VERSION
  * debian/patches/compiz-package-gles2.patch:
    - Remove, obsoleted by the upstream GLES work
  * Disable plugins that don't work on pure GLES on armhf/armel:
    - bench, firepaint, mblur, showmouse, splash, showrepaint, td, widget
 -- Sebastien Bacher <email address hidden> Fri, 31 Aug 2012 22:59:50 +0200

Changed in compiz (Ubuntu):
status: Confirmed → Fix Released
To post a comment you must log in.
This report contains Public information  
Everyone can see this information.

Duplicates of this bug

Subscribing...

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.