Hey Julian,
On 9/4/22 18:18, Julian Huhn wrote:
> Moin!
>
> I can reproduce with my X270. With -current it does not work and with
> 6.9 both external monitors run without problems.
>
> Same problem as I had already mentioned here:
> https://marc.info/?l=openbsd-misc&m=166153179211227&w=2
Ah, I'd seen your post but was thrown off by the mention of Thunderbolt,
and hadn't noticed that you had also tried with a non-Thunderbolt dock.
Thanks for confirming that it previously worked OK on your X270.
I've been searching for additional reports, and it seems as though the
Intel 4xxx CPU series w/ HD Graphics 4400 might also be impacted. Here
is a user on reddit writing about similar symptoms on a Lenovo T440p:
https://www.reddit.com/r/openbsd/comments/ws1j1d/double_displayport_dock/
Paul
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