Comment 50 for bug 545096

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Daswebmastri (daswebmastri) wrote :

I think I found out in detail how to fix the slow FPS and the flickering.

sudo gedit /etc/default/grub

Edit this line to look exactly like this

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash radeon.modeset=1"

Save and close then run

sudo update-grub

Restart and pray.

Good luck