Is possible to disable composition for fullscreen apps ?

Asked by ZeXx86 on 2012-04-02

Hello
I testing Ubuntu 12.04 LTS updated beta version but I bothering with poor performance in 3D apps even with nvidia driver.
I check that turning Unity3D off helps, so I think main problem is composition. There is cca 30% slower performance, not even FPS but small lags. With Unity2D all is fine. With KDE and composition it is good, under Unity3D not. So maybe there is still some regression in unity 5.X or composition manager.

Is possible to turn off compositon while 3D app is running in fullscreen as with KDE's KWin ?
Thanks

Question information

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Expired
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Unity Edit question
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Last query:
2012-04-02
Last reply:
2012-04-18
Mossroy (mossroy) said : #1

I see the same performance issues for watching videos (on an Intel graphics card).
I would also love an easy or automatic way to disable composition without logging off. But it does not seem to exist currently.

I asked a similar question here : https://answers.launchpad.net/unity-2d/+question/189486
We found a way to switch from Unity-3D to Unity-2D without logging off, but it's not very easy to setup. And it's a manual operation in any case.

Moreover, it recently did not work any more after a Compiz upgrade : see https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/963892

If you find a better way, I would be interested.

Mossroy (mossroy) said : #2

For information, the compiz bug I mentioned above seems to be fixed.

Launchpad Janitor (janitor) said : #3

This question was expired because it remained in the 'Open' state without activity for the last 15 days.