[Bug 104791] ACPI errors on Lenovo C50-30 (AE_AML_INFINITE_LOOP, argument type mismatch)

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=104791

--- Comment #11 from James <theholyettlz at googlemail.com> ---
(In reply to Peter Wu from comment #10)
> (In reply to James from comment #9)
> > This patch does stop the infinite loop on my machine.
> 
> Cool, can I add your Tested-by: James <... at googlemail.com> to the patch?

Yes you may. Please note I tested this patch against the current Fedora 23
kernel, 4.4.9-300.fc23.x86_64.

> > (Although now with or without it nouveau seems to cause delays starting
> > GNOME 3, but that's another bug report.)
> 
> If it is a second or so, that is likely the card switching on or off. With
> or without this patch you can disable the power saving by setting the module
> option nouveau.runpm=0 (kernel cmdline) or "options nouveau runpm=0"
> (modprobe.conf snippet). Do you still experience a delay after that?

It was more like 10 seconds. However the delay did disappear after using
runpm=0.

(I generally don't use the nVidia chip on this machine even under Windows, it's
an 820A on 4 PCIe lanes. I've not seen it show performance advantage over the
built-in Intel HD5500, I don't know why Lenovo bothered with it.)

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