I have two videocards Integrated(Intel i3) and Discrete(Mobility Radeon HD5470).
I noticed this problem, after I installed Catalyst 11.5 from AMD site. But there was something I couldn't manage, external monitor worked only in mirror mode with fglrx, and had to revert to open drivers. I removed fglrx with fglrx-uninstall.sh.
Had some problems with booting to Ubuntu, but i successfully managed to start it. Unity works, some games like OpenArena, in low-medium configuration works almost perfect. I assume that open driver is working.
I reenabled vgaswitcheroo, and turned off radeon (because of overheating problems).
But when i try glxgears, it shows me Segmentation Fault.
dmesg shows:
glxgears[10065]: segfault at 502 ip 00007f486ea4c6d5 sp 00007fffca5567e8 error 4 in libdricore.so[7f486ea1c000+21d000]
What can I do now?
PS I think if I install fglrx again, segfault will disappear (IMHO, didn't tested), but external monitor won't work as I need
