This patch (bapm=true) fixed all bug issue that I had from 3.13 with MSI
A78M-E35 motherboard with AMD APU A4-5300. My test are with 3.14.12 kernel and
radeon.dpm=1.

More ! "vblank_mode=1 glxgears" give two times more fps than with radeon.dpm=0.
Better temperature of the APU : cooler in idle mode and cool faster.

Succeed until now.

Thank you very much for your work.