Comment 73 for bug 563156

[HP 6540b, Mobility RADEON 4500, 2.6.32-24-generic-pae]
I can confirm that the proprietary driver helps. BUT when I run an application accessing opengl (e.g. fgl_glxgears) the problem is back. The temperature jumps to 85 C from 60 C and fan runs on full speed. The laptop turns off after a while.