[Bug 69723] GPU lockups with kernel 3.11.0 / 3.12-rc1 when dpm=1 on r600g (Cayman)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=69723

--- Comment #46 from Alexandre Demers <alexandre.f.demers at gmail.com> ---
(In reply to comment #45)
> The windows driver should operate pretty much the same as the linux driver
> as far as I know.  I'm not really familiar with how gpu-z reads back the
> clocks and voltages and that may have something to do with the differences. 
> Not all of the aspects of the level transition happen at the same time.
> 
> You could try setting the vddc to 1060 and changing the mclk of level 1 (mid
> level) to 650Mhz.  Perhaps the jump from 150 to 1300 is too big and the pll
> is not able to lock properly.

I tried it, but I had the same result: a hang. However, I'd be curious to see
the result on the ower con sumption. I'll keep that for another time.

I'll try to follow Vddci under Windows with something like Afterburner.

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