I'm facing a problem while installing an ATI driver through ADDITIONAL DRIVER. I was trying to install the same in Ubuntu 13.04.
The config of my laptop is AMD Radeon HD 7640G/7670M Dual GPU (1 GB DDR3 dedicated)
I'm facing a tough time ahead my project due to this issue. I have tried almost everything available in net.
tried following the instruction given in unofficial AMD site ... but of no avail.
Now though I have UBUNTU 13.04 installed perfecly on my lappy.... The charge gets drained out in matter of just 15 minutes.
Also while booting ubuntu i get following error ERROR: CANNOT FIND A BACKLIGHT CONTROLLER before i enter my password...