An example with mulitple monitors may need a separate bug report.
Here notebook and pc, each single monitor and ati card, sync to vblank und
unredirect on, no tearing.
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc.
[AMD/ATI] RV710 [Radeon HD 4350/4550] [1002:954f]
Subsystem: PC Partner Limited / Sapphire Technology Device [174b:174b]
Kernel driver in use: radeon
compiz:
Installed: 1:0.9.11.2+14.04.20140714-0ubuntu1
Candidate: 1:0.9.11.2+14.04.20140714-0ubuntu1
Version table:
*** 1:0.9.11.2+14.04.20140714-0ubuntu1 0
500 http://archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
100 /var/lib/dpkg/status
1:0.9.11+14.04.20140409-0ubuntu1 0
500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
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Packages, which is subscribed to compiz in Ubuntu.
https://bugs.launchpad.net/bugs/1307144
Title:
'unredirect fullscreen windows' causes tearing
Status in “compiz” package in Ubuntu:
Confirmed
Bug description:
Ubuntu release: 14.04
Installed compiz version: 1:0.9.11+14.04.20140409-0ubuntu1
The option 'unredirect fullscreen windows', which is enabled by
default in Compiz, causes tearing in games and other fullscreen OpenGL
applications, even with 'sync to vblank' options enabled in ccsm, in
the GPU settings and in the game.
With this option disabled, VSync works as fine as should with
'unredirected fullscreen windows' enabled and there is no tearing (but
this causes performance issues and the Unity panel shadow on top of
the application).
Tested with:
- ASUS NVIDIA GTX 650-E-1GD5 with NVIDIA proprietary driver 331.38 (tested)
(nvidia-331)
- the same graphics card with NVIDIA proprietary driver 331.38
(nvidia-331-updates)
- the same graphics card with Nouveau open source driver
(xserver-xorg-video-nouveau)
- Intel HD 4000 iGPU with default open source drivers
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