hybrid-graphics-linux team mailing list archive

[Lekensteyn <lekensteyn@xxxxxxxxx>]

If you have a Lenovo IdeaPad Y470 or Lenovo IdeaPad Y570, you are affected
for sure. This
hack does **not** work for other machines as the models are hardcoded. As
for ACPI in
general, do not set either of the boot options noacpi, pci=noacpi or
anything that disabled
ACPI.

On Sun, Feb 5, 2012 at 10:13 AM, 郑涛 <wliment@xxxxxxxxx> wrote:

> how to find whether the linux suppot my laptop acpi?
>
> 2012/2/4 Lekensteyn <lekensteyn@xxxxxxxxx>
>
>> Hello all,
>>
>> Good news for all owners of the Lenovo IdeaPad Y470 and Lenovo IdeaPad
>> Y570, I've
>> managed to make an ugly hack that works around a detection issue in the
>> kernel
>> (https://bugzilla.kernel.org/show_bug.cgi?id=42696)
>>
>> Until a correct fix has been comitted for the kernel, you can use a hack
>> for overwriting
>> the wrongly detected ACPI handle. More information on that is available
>> in:
>>
>> https://github.com/Bumblebee-Project/bbswitch/issues/2#issuecomment-3797568
>>
>> Please note that this hack is by no means a real solution, but an ugly
>> workaround.
>>
>> Regards,
>> Peter
>>
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>>
>