[Bug 61891] Cannot switch off Radeon 6400M with vgaswitcheroo

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=61891

Jack <q at cyphernaut.org> changed:

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                 CC|                            |q at cyphernaut.org

--- Comment #61 from Jack <q at cyphernaut.org> ---
Hey guys

I'm running into an issue with my 7970M/Intel muxless in which the discrete GPU
doesn't actually power down once I've started X.

With acpiphp disabled I don't get the errors that were indicated in
https://bugzilla.kernel.org/show_bug.cgi?id=65761 however vgaswitcheroo/switch
remainds on DynPwr and never goes to DynOff (until I kill X, anyway)

I tried Rafael's patch in the hopes that this might resolve the issue, but it
doesn't seem to have done so -- still stuck in DynPwr when X is started.

Is this patch specific for certain Radeon models, ie, would it not work with
radeonsi? My first guess was no it shouldn't, but I don't know all that much s
I figured I'd ask. :)

Thanks!

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