F11 X Cpu usage too high

Hi All,

I installed F11 (KDE), created a new account and copied over my home directory from F10. Chowned everything and logged in. Everything worked like a charm. Apart from CPU usage for X is very high, I don't anticipate I'll get much battery life running like this... Any ideas?

[CSchwangler]

Hello Toeside,

first let me say that your CPU usage doesn't look that high, depending on what your configuration is. For example, if you are using 3D effects, this may be one reason for high CPU usage. Another reason may be the driver for your graphics card. I once had similar problems to yours with a different distribution. My CPU usage was constantly above the high thirties, but I had Gnome instead of KDE. It turned out that the driver for my graphics card caused some problems due to a bug.
Turning off desktop effects made the situation somewhat better but didn't solve the problem completely. I also turned off unnecessary services. I know nothing about your hardware but in my case I found it better to use less resource intensive desktops (XFCE, LXDE, etc.). However, on a different machine, the same distribution ran satisfactorily.

Many thanks, switching from OpenGL to XRender seems to have done the trick

[anika200]

Was this due to the kind of hardware you have? What kind of laptop? Maybe I am missing it.

Actually that wasn't it at all... In the end I made the decision that the build of X in F11 was buggy and went back to F10.

Maybe F12