Nux

If is stub_occlusion_query=true on intel gma, unity is laggy and buggy

Bug #970265 reported by František Zatloukal
14
This bug affects 3 people
Affects Status Importance Assigned to Milestone
Nux
Invalid
Low
Unassigned
Unity
Invalid
Low
Unassigned
xserver-xorg-video-intel (Ubuntu)
Invalid
Undecided
Unassigned

Bug Description

If i enable stub_occlusion_query on my intel gpu (gma 3150), unity (3D) becomes laggy and buggy. For example, opening Dash at unity 3D takes about 60 seconds. Unity 2D is ok.
Enabling stub_occlusion_query ,,converts,, opengl support from 1.4 to 2.0.
Other Desktop environments didn't have any issues.

Tested on Unity 5.8, Ubuntu 12.04 (beta2), x86_64 (this issue is present on x86 too).

František Zatloukal (zatloukal-frantisek)
tags: added: compiz
Omer Akram (om26er)
Changed in nux:
assignee: nobody → Jay Taoko (jaytaoko)
Changed in unity:
importance: Undecided → Low
Changed in nux:
importance: Undecided → Low
Revision history for this message
František Zatloukal (zatloukal-frantisek) wrote :

Can i expect fix before quantal release please?

Revision history for this message
František Zatloukal (zatloukal-frantisek) wrote :

Hey guys :), nux 3.0 is here and i am still waiting for a fix. Can you post some E.T.A. please?

Revision history for this message
Robert Hooker (sarvatt) wrote :

stub_occlusion_query is just that, a stub that fakes support for features the GPU doesn't fully support. Rendering issues when using it are to be expected.

Changed in xserver-xorg-video-intel (Ubuntu):
status: New → Invalid
Changed in unity:
status: New → Invalid
Changed in nux:
status: New → Invalid
assignee: Jay Taoko (jaytaoko) → nobody
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