[Bug 41664] R580 Powermanagement with Kernelmodesetting:

https://bugs.freedesktop.org/show_bug.cgi?id=41664

--- Comment #5 from Alex Deucher agd5f@yahoo.com 2011-10-11 13:31:01 PDT --- On pre-R6xx desktop asics, there are generally no low power states. There is generally only a single default state or, on some high end cards cards, default state and an overclock state. Your card has two power states:

1. default state engine: 508Mhz, memory: 600Mhz

2. 3D/overclock state engine: 650Mhz, memory: 1000Mhz

We don't currently support overclock states so that leaves just one state.