Ubuntu

Comment 58 for bug 541501

Timo Derstappen (teemow) wrote :

Same bug on a Lenovo R60 with ATI X1400.

With single head the screen starts flickering after a while like Gary B. described above. I added modeset=0 and the flickering takes longer, but it is still there. Seems to be related to the machines temperature. If the cpu is busy for a while the flickering gets worse.

If I use dual head the shivering is always present like in the youtube video. modeset didn't change anything.

Today I installed mainline kernel 2.6.34 and the dual head shivering was fixed. But the flickering with single head is still there.
http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.34-rc6-lucid/

Furthermore if I reboot the machine it hangs with some red garbage on the top of the screen.

Let me know if there is more information needed.

Cheers,
Timo