Messages in this thread | | | Subject | Re: Thunderbolt DP oddity on v5.2.9 on iMac 12,2 | From | Brad Campbell <> | Date | Wed, 28 Aug 2019 17:34:00 +0800 |
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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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