I recently downloaded steam and purchased team fortress 2 and Garry's mod on Ubuntu 15.04. And it came up with the error
Could not find required OpenGL entry point 'glGetError'! Either your video card is unsupported, or your OpenGL drivers need to be updated.
PC Specs:
Memory: 1.9GB
Processor:Intel Pentium Dual CPU E2180 2.00Ghz x 2
Graphics: Intel G33
OS Type: 64 Bit
Disk: 243.8GB
