im running ubuntu 13.04 on my Sony VPCSB37_GA with intel and amd Graphic cards I followed this tutorial so i can switch between intel and amd and it was working good, till yesterday. now i can only boot on intel, whenever i switch to amd by:
sudo aticonfig --xp-dgpu
and reboot, i get the "The system is running in low-graphics mode". i am using the tty1 to run:
sudo aticonfig --xp-igpu
and get back to the intel card. i don't know what happened, maybe because of an update? i also re-installed everything from the same tutorial and re-installed ubuntu-desktop and lightdm but nothings works.