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I'm running Ubuntu 10.10 and I have problems with my Compiz-Fusion 3D-desktop (I've had this problem since Ubuntu 10.04). On my almost new PC with a Geforce GTS250, 6GB Ram and AMD 3,4Ghz, the edges of Compiz's wobbly windows look somehow scraggy and not smooth (look here: http://brainstorm.ubuntu.com/idea/24439/) and the animations are not fluent at all (e.g. the Expo plugin or the desktop table). It looks that there are some frames missing. When I watch a DVD the picture sometimes looks cut. I wonder why I don't have the behaviour with my elder notebook (Ubuntu 9.10, 512MB Ram, 1.73Ghz, Intel Graphic accelerator X3100). On my notebook every animations are fluent and the wobbly windows don't have scraggy edges although the resources are very limited. I compared both settings (PC and notebook) but I don't find any settings which could provoke such differences. On my PC I sometimes got a better result when I checked VSync. But it doesn't look as good as on my notebook. The ugly edges of the wobbly windows seem to be a bug: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/575707 but I wonder why every animation doesn't look as fluent as on my notebook. So I don't think that this is only a bug. Which settings could affect this behaviour. Does anybody have any idea?

By the way, I can't test or give any configuration information at the moment because my PC is at the service due to another problem.

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The NVidia drivers are probably just buggy as always. – RobinJ Sep 4 '11 at 9:49
Still better than the ATI drivers. :D – Shiki Oct 5 '11 at 17:57
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Sounds to me like something with your graphics card isnt working together nicely. Have you checked whether you have the newest NVIDIA drivers? I usually go straight for the CUDA drivers since these are the most up-to-date. http://developer.nvidia.com/object/cuda_3_2_downloads.html

to install those you need to blacklist a handful of other video modules.

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I'm not sure which drivers I use. But this is somethin I will check when I get my PC back from service. – Bevor Nov 25 '10 at 18:18
Sorry, this didn't help. I got rid of all nouveau, deleted every package install by package manager and installed the latest drivers from Nvidia. – Bevor Dec 2 '10 at 17:28
which driver version did you install? – madmaze Dec 2 '10 at 19:40
NVIDIA driver version 260.19.21 – Bevor Dec 6 '10 at 17:43
hmm interesting i have 260.19.14 which is working well for me.. it may be something different then. Is that the version number that the Nvidia X server settings thingy gives? – madmaze Dec 6 '10 at 18:56
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Ok, the tearing effect is suddendly gone. I think it is related to my xorg.conf. Earlier I didn't use any and I think that some settings of the xorg.conf have an effect on the 3d desktop.

But there is still something which disturbs me. When I uncheck vblank in the compiz settings, I get the tearing effect with the wobbly windows, but expo and desktop table is fluent. When I check vblank, the wobbly windows have no tearing effect but expo and desktop table is jerky. Is there a way to configure the best setting for both?

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