External monitors are no longer detected (Intel graphics)

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Hi,
I'm using a Thinkpad T450s with Intel graphics.

Yesterday, I could no longer connect external monitors via miniDP.
They were not detected at all, either by xrandr in i3 or by sway (wayland). I didn't have time to dig out a VGA cable and try that, so I cannot rule out physical damage yet - I did try 2 monitors with different cables, both of which work with my wife's Thinkpad.

Since wayland doesn't make a difference, I'm thinking maybe something broke with the (my?) drivers? Is there any other possibility apart from physical damage, and what do I try next?

Cheers,
Bennett



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