So I've been having this issue for as long as I've been using Ubuntu. Especially on this laptop. When playing any "intensive" game, I get SEVERE FPS drops that go from 90-120 FPS to a depressing 5-15 FPS, not to mention that input lag that follows before it starts running back at the normal FPS.
This happens on Half-life (not 2, which I find ubsurd), Half-life 2, counter-strike source, Unvanquished, and Garry's Mod. All of which are 3D games. Unturned, a 2D game has no issues what so ever and uses more resources than half-life. On windows, I don't get the same level of performance getting around 70FPS with some lag and stuttering, but no FPS drops that are this bad.
I have a Lenovo Thinkpad T430 with Intel HD 3000 integrated GPU, 8GB ram, and a quad core I5 CPU. I Understand that Valve games do run in OpenGL mode, could this be what is affecting my system?? If so why does it still happens regardless in other games?
I doubt that this might be a thermal issue as when I check my CPU during gameplay I lock at around 84C, though I might be wrong.
