3 ms·
>This is DP pass-through, there's no DisplayLink or similar involved. How do you know that it is DisplayPort pass-through? From what I've seen, if it's going
by cpurdy 4y ago
>This is DP pass-through, there's no DisplayLink or similar involved.
How do you know that it is DisplayPort pass-through?
From what I've seen, if it's going through a USB-C hub, there is almost zero chance that it is DisplayPort pass-through, although such a thing is possible to implement, in theory.
- vladvasiliu 4y agoBecause it shows up on Linux as an output of the integrated graphics card (DP-X-Y in xrandr), and it also works in the BIOS or during Windows installation. Before this, I had a DisplayLink dock that would not work on Linux without specific drivers. The HP specs [0] say the number of displays depends on the computer's graphics card. Don't know if there's anything in between DisplayLink and pass-through, though, so I can't be certain it's not that. [0] https://support.hp.com/us-en/product/hp-usb-c-dock-g5/27767205/document/c06386359 https://support.hp.com/us-en/product/hp-usb-c-dock-g5/277672... Specifically: For USB-C functionality, host PC must support the DisplayPort Alt mode protocol through its USB-C port.
- innocenat 4y agoI am pretty sure DP cannot be encaspulate in USB 3.1/3.2. (USB4 can carry DP over Thunderbolt), so alternative mode MUST be used (1 highspeed TX/RX pair for USB-C 5/10Gbps, and another pair for DP Alt Mode).