I recently upgraded to 14.04, then I installed steam, and TF2. I get this error message:
Could not find required OpenGL entry point 'glGetError'! Either your video card is unsupported, or your OpenGL driver needs to be updated.
Anyway, I know I need to update my OpenGL Driver, my question is how do I do it?
EDIT: I installed mesa
and entered glxinfo | grep version
into Terminal and got this,
New Edit: After looking into the first answer, I did all of the steps, and restarted my computer, when I launched steam on startup, I got the following error,
glxinfo | grep version
If this produces errors, you will need tosudo apt-get install mesa-utils
and re-run the command. Please post the results into your question.