Ubuntu x64 low WebGL prformance


I’m developing simple 2D platformer game using WebGL on Windows machine for a few days now and everything is working great. So I decided to try it out on Linux(Ubuntu) to see how it will perform. When game is in window mode (800x600) game runs smoothly but when I maximize window it really slows down(~10fps). My question is, is anyone else having this problem (did not manage to find any answer on google)? Other WebGL demo-s I found on internet are all running fine, so I don’t think it’s anything related to drivers. Any other suggestions what may be wrong are welcome.


Does it persist in fullscreen mode? Might be related to this Atom issue: