I am using ubuntu (well, kubuntu to be precise) and my KDE desktop feels slow. Scrolling is especially slow in kate, windows switching is slow, firefox is REALLY slow.
I have direct rendering enabled using the r300 driver, which has been setup automatically by the installer. The computer is a bit old, but it used to be quite fast at the times I could use the proprietary ati-drivers (which dropped support for my card).
How can I test if there is something misconfigured? I used to use xglgears for that, but it outputs the code below:
Running synchronized to the vertical refresh. The framerate should be approximately the same as the monitor refresh rate. 300 frames in 5.0 seconds = 59.872 FPS
Is there anything I can do, or should I just change the video card? Anything you could recommend?