On Mi, 2018-11-21 at 16:50 +0100, Frédéric Parrenin  wrote:
> 
> which over rides the Mac on the dock. So, the answer is, "it's not an 
> issue if the dock supports it, as the laptop BIOS is what is determining 
> if it is supported".
> 
> So what is the truth?

For pass thru you must meet multiple conditions:

/* if this is not an RTL8153-AD, no eFuse mac passthru set,
 * or system doesn't provide valid _SB.AMAC this will be
 * be expected to non-zero
 */>

They can be manually verified. Do you need a debugging patch?

        Regards
                Oliver

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