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SubjectRe: Thunderbolt DP oddity on v5.2.9 on iMac 12,2
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On 28/8/19 5:12 pm, Brad Campbell wrote:
> On 28/8/19 3:33 pm, Mika Westerberg wrote:

>> I'm suspecting that the boot firmware does configure second DP path also
>> and we either fail to discover it properly or the boot firmware fails to
>> set it up.
>>
>> Also if you boot with one monitor connected and then connect another
>> (when the system is up) does it work then?
>
> Umm.. so this is where it gets weird. No it doesn't. Apparently it fails
> to configure the first monitor it finds. This is the one the Apple
> bootcamp firmware configures at boot.
>

Ok just to clarify it appears I've been booting EFI and bypassing the
Bootcamp BIOS emulation for a few years. So, that made no difference.

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