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> Linux recognizes it as DP-X-Y. That's interesting, I've always seen Linux recognizing DP ports as only DP-X in xrandr. So my first guess would be that what y
by cesarb 4y ago
> Linux recognizes it as DP-X-Y.
That's interesting, I've always seen Linux recognizing DP ports as only DP-X in xrandr. So my first guess would be that what you have within the dock is a something like a DP MST hub, to split the single DP port into two, and then one of these two ports goes into the active converter to HDMI (perhaps in the same chip), while the other is exposed as the DP socket.
- vladvasiliu 4y agoYou may be on to something, especially since I seem to remember people having MST displays complaining about wonky support. Another fun fact: the laptop I'm typing this on shows 4 DP connections (DisplayPort-0 through 3), one HDMI-A-0, one eDP. There's no dock connected to it right now. When I was using the Chinese dock with a DP monitor, one of the four was showing up as connected. The PC only has two USB-C connectors and one HDMI. So, I guess it expects to be able to drive two displays per USB-C port.