[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 #7 from Klaus Maier <abcdmail at freenet.de> ---
Tested your suggestion to activate the powergating by removing the comments you
mentioned above w/ 3.19.3 and radeon.bapm=1. This even raised the power
consumption about 5 W more as w/o it. This "feature" is completely broken.

I recompiled the *complete* kernel to test your suggestion. This is a pain. Is
there an external radeon module which can be compiled outside of the complete
kernel and which can be used with more than one kernel version - like fglrx?

It's much more easy to change the complete video stack with catalyst as with
radeon. The radeon stack architecture is completely unusable because it is
spread over the whole system and I even have to always change the complete
kernel if there is a problem w/ the graphics driver. The kernel change most
often results in other problems w/ other hardware which is broken on other
versions because of missing QA.

Another question: Why can't you see this while programming? Didn't you check
your code w/ a ammeter?

According to http://xorg.freedesktop.org/wiki/RadeonFeature/ DPM is done for
Kaveri. This is obviously wrong and you know about it but you're nevertheless
claiming the opposite.

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