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Re: [Libreboot-dev] X200 Lenovo BIOS comparisons

From: Damien Zammit
Subject: Re: [Libreboot-dev] X200 Lenovo BIOS comparisons
Date: Wed, 03 Feb 2016 22:28:46 +1100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.7.0

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.


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]:

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