I recently installed Ubuntu 15.10 on my old PC. This are my PC's specs:
Processor: Intel® Core™2 CPU 6400 @ 2.13GHz × 2 GPU: Radeon X1600 PRO Memory (RAM): 2GB Disk (space): 155GB
So, I decided to play CS:GO. I installed Steam with Ubuntu Software Center and then installed CS:GO from Steam. I tried to run it and I got an error: Could not find required OpenGL entry point 'glColorMaskIndexedEXT'! Either your video card is unsupported, or your OpenGL driver needs to be updated. I was searching for solution for about 2 week, but nothing helped. I even had to reinstall Ubuntu because of a login loop XD. Then I decided to try and use Wine and PlayOnLinux. I installed everything correctly and when I tried to run CS:GO I got and unknown error. I know that my PC is realy old but when I used to have windows XP installed on it, I could play CS:GO without any problems. Can you guys please tell me what to do in a simple way, step by step? I would be very grateful for your help :)
Here are some more maybe useful informations:
lspci | grep VGA 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530 [Radeon X1600 PRO]
glxinfo | grep "OpenGL version" OpenGL version string: 2.1 Mesa 11.0.2
If you need any more informations, I will give them to you, just tell me what to look up or type in the terminal and I will do it :)