After switching to Ubuntu 13.04 64bit, AMD proprietary drivers stopped working on my laptop with AMD/Intel hybrid graphics.

I tried installing older version of Intel graphics as described in this thread How do I get AMD/Intel Hybrid Graphics drivers to work?.

This solution works great with one monitor, but when I try to connect second one while using discrete card, my screen starts flickering and glitching very hard. It's hard to explain, seems like it tries to intersect two screens.

I noticed, that command sudo aticonfig --set-pcs-str="DDX,EnableRandR12,FALSE" failed to deactivate RandR1.2, so there's no Display Manager in amdcccle. I tried to search a solution for disabling RandR, but found none working.

I had none of these problems on Ubuntu 12.10 64bit.

Any help is appreciated. Thank you.