Your system information

• Steam client version: 1476379980
• Distribution: Ubuntu 16.04 64-bit
• Opted into Steam client beta?: No
• Have you checked for system updates?: Yes

Please describe your issue in as much detail as possible:

In a game of Counter-Strike: Global Offensive and Team Fortress 2 on Linux I had some problems when using Anti-Aliasing. During the game may occur a sudden drop to 5-10 FPS. In Left 4 Dead 2 or Counter-Strike: Source like that did not happen.

Steps for reproducing this issue:

1. Turn on MSAA
2. Join to server
3. Wait for a 1-20 minutes
4. ??????
5. ISSUE!