Cfxtrjtrk

I'm totally desperate. I'm trying to install open source video drivers for my R9 270x, but no matter what I do when I run
glxinfo | grep OpenGL
it shows

OpenGL vendor string: VMware, Inc.

OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 3.6, 128 bits)

OpenGL version string: 3.0 Mesa 11.0.2

OpenGL shading language version string: 1.30

OpenGL context flags: (none)

I've been googling this problem for about 2 days already, read all posts related. Nothing works, nothing helps.

What I did:
added this ppa

ppa:oibaf/graphics-drivers

And this one

ppa:paulo-miguel-dias/mesa

Then

apt-get update

I looked into xorg.0.log file and found the following:

[    45.977] (EE) Unable to initialize PCS database

[    45.977] (EE)   Missing PCS defaults file /etc/ati/amdpcsdb.default

[    45.978] (II) [KMS] drm report modesetting isn't supported.

[    45.978] (EE) open /dev/dri/card0: No such file or directory

[    45.978] (WW) Falling back to old probe method for modesetting

[    45.978] (EE) open /dev/dri/card0: No such file or directory

[    45.978] (II) Loading sub module "fbdevhw"

[    45.978] (II) LoadModule: "fbdevhw"

[    45.978] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so

[    45.989] (II) Module fbdevhw: vendor="X.Org Foundation"

[    45.989]    compiled for 1.17.2, module version = 0.0.2

[    45.989]    ABI class: X.Org Video Driver, version 19.0

[    45.989] (**) FBDEV(2): claimed PCI slot 1@0:0:0

[    45.989] (II) FBDEV(2): using default device

[    45.989] (WW) Falling back to old probe method for vesa

[    45.989] (EE) Screen 0 deleted because of no matching config section.

[    45.989] (II) UnloadModule: "radeon"

[    45.989] (EE) Screen 0 deleted because of no matching config section.

45.994] (II) AIGLX: Screen 0 is not DRI2 capable

[    45.994] (EE) AIGLX: reverting to software rendering

Still nothing. When I first installed Ubuntu 15.10 I managed to install this driver correctly and was using it till I decided to try Crimson AMD Driver yesterday (what a big mistake). I didn't like Crimson driver, so I completely uninstalled it. So now I have software rendering and not able to play games anymore, no solution from the web works.

I have the same situation on Ubuntu Xenial.
For now, there is a bug for kernel 4.2+

You should do :

sudo ppa-purge oibaf/graphics-drivers

sudo ppa-purge paulo-miguel-dias/mesa

reboot

Then, you can either stay with the opensource AMDGPU driver or downgrade your kernel to 4.1.15 and try again.

sudo apt install fglrx

sudo amdconfig --initial

sudo dpkg-reconfigure xserver-xorg

reboot

To diagnose issue, look at your /var/log/kern or dmesg

grep fglrx /var/log/kern

dmesg | grep fglrx

If you can't reboot, go in recovery mode and work with those command

Good luck :)