Possible bug in nvidia drivers?

When I launched two instances of glxgears, running in parallel, I got the following:

  • When launching them on a remote machine (export DISPLAY, via a SSH connection), everything is smooth.

  • When lauching them on the local machine, the average FPS remains identical, BUT each instance runs at full speed during a short period, then stalls, re-runs, etc.

I don’t know if it’s kernel related (I’m using 2.4.19 with jiffies patch and HZ set to 1000 instead of 100), libGL related (the remote machine’s libGL is from Mesa3d) or if it’s the nvidia drivers of the local machine (1.0.4363).

The only big difference I see is GLX (remote -> local) vs direct rendering (local -> local).


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