Project TNI: Configure opensource driver for Radeon HD 7950 on Ubuntu 16.04

$ sudo apt-get remove fglrx*

$ sudo apt-get purge fglrx*

Opensource drivers should be installed by default,

If not installed you can use the following command:

$ sudo apt-get install xserver-xorg-video-ati

$ xrandr -q

Xrandr was not able to recognize my graphic card.

So I used this trick from ubuntu wiki.

$ cd /usr/share/X11/xorg.conf.d/
$ sudo nano 99-vesahack.conf

...

Section "Device"
    Identifier "Screen0"
    VideoRam 10000
EndSection

...

$ sudo reboot

Optional fix resolution for grub.

You might need to try 'vbeinfo' in grub to see what resolutions are supported.

$ sudo nano /etc/default/grub

...

GRUB_GFXMODE=1920x1080

...

$ sudo update-grub

Update:

Purge command removed fglrx-core and flgrx which was causing a conflict.

Xrandr is able to recognize the graphic card, so 99-vesahack.conf is removed.

Ref:

http://askubuntu.com/questions/159586/how-to-install-radeon-open-source-driver#277500

https://wiki.ubuntu.com/X/Config/Resolution

Project TNI