Severe video lag after fresh install of 14.10 on Asus K52J laptop

[kernelles]

-12.04, 12.10, 13.04, 13.10 and 14.04 all worked perfectly on same machine
-Happens in Chrome, Firefox and Midori when watching flash video on any site
-Plays for a while with no problems, then starts lagging, followed by whole system lag.
-Running "top" in terminal shows browser using >400% of CPU when this happens, regardless of browser used.
-Have tried rebooting, switching drivers, checking flash installation, different browsers and reinstalling Ubuntu, but nothing works.

[divyansh2]

I am facing the same problem after a fresh install of 14.10 64 bit.

Specs:
-Toshiba Satellite L650
-Intel Core i5 M 520
-Gallium 0.4 AMD Redwood

Any suggestions/fixes?

[kernelles]

I finally just went back to 14.04 and everything works perfectly again.