[Bug 94061] [radeon - Kaveri] dpm works badly - much to high power consumption compared to catalyst

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=94061

--- Comment #9 from Klaus Maier <abcdmail at freenet.de> ---
(In reply to John Bridgman from comment #8)

> Upstream kernel drivers are coded for the kernel version that they live in.

That exactly is the problem - the missing downward compatibility. But there are
a lot of drivers which can be used w/ older kernels:

https://www.kernel.org/pub/linux/kernel/projects/backports/stable/

This makes it possible to run the old working kernel w/o having the need to run
a bleeding edge kernel which most of the time breaks some other devices (as w/
3.19., which breaks USB on boot up here). And it makes it possible to compile
just the module which is needed - de facto the same handling as it is provided
by Catalyst.

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