[Bug 98564] [drm:skl_set_power_well] *ERROR* power well 2 disable timeout

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98564

--- Comment #3 from Jason A. Donenfeld <jason at zx2c4.com> ---
(In reply to Imre Deak from comment #2)
> We seem to clear all request bits so not sure what keeps PW#2 up. Is there
> any KVM related option in your BIOS setup, could you try with disabling it
> if so?

Disabling VT-x and VT-d in the BIOS have no effect.

However, this error is not observed when restarting the system. Rather, it is
only observed when cold booting.

> 
> Also could you give a try to the following to increase the timeout and get
> some debug info?:

Sure. The added message evaluates to:

[    0.735000] [drm:skl_set_power_well] *ERROR* power well 2 disable timeout
(50000005 7000000f c0000000 50000005 050f0000 0000050f)

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