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