Compiz really slow with NVidia 6200

[imm6]

I have a NVidia 6200 video card and when I try to enable Compiz in Hardy (8.04) everything becomes very slow. The process "compiz.real" takes up all of the CPU and moving a window becomes very jerky. The system performs fine using metacity. I have tried both the nvidia-glx-new (169.12+2.6.24.13-18.41) and nvidia-glx (96.43.05+2.6.24.13-18.41) drivers, with the same effect. I have disabled all the compiz effects. glxgears is yielding around 1000 FPS. I have attached my xorg.conf file to this bug. Thanks.

[Michael Vogt (mvo)]

Thanks for your bugreport.

Could you please install the compiz-config-settings-manager and then run "ccsm" and play with the plugins a bit to see if you can pinpoint which one make it slow? Could you please enable the "benchmark" plugin and see what numbers that outputs?

Thanks,
 Michael

[Michael Vogt (mvo)]

The most likely explaination for the slowdown is the twinview option. Please try disabling it and see if that makes it fast again.

Cheers,
 Michael

[imm6 (imm6)]

Hello Michael,

Thanks for responding. I commented out the 3 lines in my xorg.conf file to disable TwinView and restarted so it only came up on one monitor. Then I enabled compiz and ran ccsm.

As a side note that may or may not be related, with compiz enabled, besides the display performing very slowly, it also does not refresh properly. For example, if I bring up a terminal window and type something in it, nothing will show up. If I minimize the window and then restore it again, what I typed before will now be visible. Similarly, with ccsm if I uncheck a plugin, the checkbox does not disappear unless I minimize and restore. Similar behavior for scrolling, or pretty much any update to a window.

So I disabled every plugin with ccsm. Then I enabled the bench plugin, so that was the only plugin running. I activated the meter with magic F12 and it gives me a number of about 2.5 fps.

Thanks.

[Martin Mai (mrkanister-deactivatedaccount-deactivatedaccount)]

We were wondering if this is still an issue for you. Can you try with the latest Ubuntu release? Thanks in advance.

[imm6 (imm6)]

I recently upgraded my computer to Karmic and the issue is still occurring.