[regression][GLES] scale mode is slow and stutters when unityshell is loaded
Bug #1039942 reported by
Daniel van Vugt
This bug affects 23 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Compiz |
Triaged
|
Medium
|
Unassigned | ||
Unity |
Triaged
|
Medium
|
Unassigned | ||
6.0 |
Won't Fix
|
Medium
|
Unassigned | ||
unity (Ubuntu) |
Triaged
|
Medium
|
Unassigned | ||
Quantal |
Won't Fix
|
Medium
|
Unassigned |
Bug Description
When scaling windows (Shift+Alt+Up for Compiz or Super+W for Ubuntu) and unityshell is loaded, the scale animation is often very slow and stutters. This is particularly noticeable with dual monitors.
I believe this slowness is caused by the damageScreen() call I had to put in the scale plugin to fix/workaround bug 1026986 and bug 1037489.
description: | updated |
Changed in unity: | |
status: | New → Triaged |
importance: | Undecided → Medium |
summary: |
- [GLES] scale mode is slow and stutters when unityshell is loaded + [regression][GLES] scale mode is slow and stutters when unityshell is + loaded |
Changed in compiz: | |
milestone: | 0.9.8.0 → 0.9.8.1 |
Changed in unity (Ubuntu): | |
importance: | Undecided → Medium |
status: | New → Triaged |
milestone: | none → ubuntu-12.10-beta-2 |
Changed in unity: | |
milestone: | none → 6.4 |
Changed in unity: | |
milestone: | 6.4 → 6.6 |
Changed in compiz: | |
milestone: | 0.9.8.2 → 0.9.8.4 |
Changed in unity: | |
milestone: | 6.6 → 7.0 |
Changed in unity (Ubuntu Quantal): | |
milestone: | ubuntu-12.10-beta-2 → ubuntu-12.10 |
Changed in compiz: | |
milestone: | 0.9.8.4 → 0.9.9.0 |
Changed in unity (Ubuntu Quantal): | |
milestone: | ubuntu-12.10 → quantal-updates |
description: | updated |
Changed in unity (Ubuntu): | |
milestone: | quantal-updates → none |
milestone: | none → raring-updates |
Changed in compiz: | |
milestone: | 0.9.9.0 → 0.9.9.2 |
Changed in compiz: | |
milestone: | 0.9.9.2 → 0.9.10.0 |
Changed in unity: | |
milestone: | 7.0.0 → 7.0.1 |
Changed in compiz: | |
milestone: | 0.9.10.0 → 0.9.11.0 |
Changed in unity: | |
milestone: | 7.0.1 → 7.3.1 |
Changed in unity: | |
milestone: | 7.3.1 → 7.3.2 |
Changed in unity: | |
milestone: | 7.3.2 → 7.3.3 |
tags: | added: rls-w-incoming |
Changed in unity: | |
milestone: | 7.3.3 → 7.4.0 |
tags: |
added: rls-x-incoming removed: rls-w-incoming |
tags: | added: unity-backlog |
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I believe that this problem *may* be related to the new window title and close button, which were added to Ubuntu as of 12.10. I noticed no lag before this plugin was added, but now it is quite often almost unusable. The issue may be the point at which the title is being drawn, as it quite often lags a split second after the animation is started and I can see the windows (sans titles). The animation only proceeds when the title appears.
Test:
Open four terminals in the same workspace. Click the terminal icon to spread the windows in that group, and note the point at which the lag occurs.