Re: [Libreboot-dev] X200 Lenovo BIOS comparisons

[Damien Zammit]

Can you get a full ACPI dump please with vendor bios, there seems to be
a bug on some X200 models that the ethernet card does not work with
libreboot.  I think it is IRQ routing related.

Damien

On 03/02/16 21:26, Nathaniel Roach wrote:
> Hi all!
> 
> I'm going to be flashing my X200 back to Lenovo BIOS in order to
> downgrade the EC (1.07 added a check for legitimate batteries, and
> considering the age of the machine, I may end up having to use non-OEM
> batteries).
> 
> The main thing I want to check it the EC behaviour regarding the mute
> button - according to some old kernel mailing list, and Launchpad [1],
> passing acpi_osi="Linux" (in LenovoBIOS) means the EC will pass through
> the mute button as a regular XF86 key, rather than handling the muting
> itself. To me, this sounds preferable to the current behaviour in
> libreboot.
> 
> I'm not going to be able to fix this myself, but if someone is
> interested in doing some comparisons (e.g. acpi tables) for this issue,
> or others (such as VT-X or VGA) I'm more than glad to help.
> 
> Nathaniel Roach
> 
> [1]:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/281732/comments/19
>