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Old 05-19-12, 12:03 PM   #1
bgneal
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Join Date: May 2012
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Default Sluggish performance 8400M GS Ubuntu 12.04 Unity 3D

I have a Dell XPS M1530 laptop that has a GeForce 8400M GS card. In Ubuntu 12.04, Unity 3D performance is sluggish. Resizing windows takes seconds after you release the mouse. Scrolling or pasting text into a GVim (a text editor) is slow. Things are much snappier in Unity 2D. Upgrading to driver version 295.49 from 295.40 helped a bit, I think, but it is still unpleasant.

I have attached the nvidia-bug-report.log file. Please let me know if I can provide any more information.

Thank you.
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Old 05-24-12, 07:16 PM   #2
bgneal
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Default Re: Sluggish performance 8400M GS Ubuntu 12.04 Unity 3D

I tried using only Unity 2D for several days with 295.49, but still it is too sluggish. I can see high CPU usage when switching between virtual desktops, for example.

I changed to the nouveau driver and everything is very smooth now. CPU usage is way down.

I'd like to use the nVidia drivers for the 3D support..
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