Ubuntu – Brightness controls are not working in sony vaio with amd radeon hd 7650

12.10brightnessradeonvaio

I have a Sony Vaio SVE15116EN with AMD Radeon HD 7650 graphics card. I am currently using Ubuntu 12.10. My brightness controls are not working but sound controls are working fine. I have also tried proprietary drivers also but no luck. I have tried controlling brightness with terminal but it also did not work. Please can anyone tell me what can i do? I have been searching for the solution almost for a week. Any ideas?

Best Answer

I found the solution:

  1. Download the amd radeon driver from here
  2. Run terminal and tupesudo apt-get install linux-headers-3.5.0-17-generic
  3. Go to directory where you have downloaded the zip file of driver which might be /home/your_username/Downloads. Extract the zip file there. You will see a .run file.
  4. Run command: sudo sh amd-driver-installer-catalyst-13.1-linux-x86.x86_64.run
  5. It will open the installer window. Now install the driver. After finishing it will ask you to reboot but don't.
  6. Open a new terminal and type: sudo amdconfig --initial
  7. Now reboot your system. Your brightness control will work fine.