I have experienced similar freezes in my acer v5 121 with Amd c70 processor. But if I keep the default kernel 3.8.0.19 with Ubuntu 13.04 , there are no freezes, when I updated to 3.8.0.25 , freezes started occurring in 5-10 minutes after boot.
I have experienced similar freezes in my acer v5 121 with Amd c70 processor. But if I keep the default kernel 3.8.0.19 with Ubuntu 13.04 , there are no freezes, when I updated to 3.8.0.25 , freezes started occurring in 5-10 minutes after boot.