I just got my USB-C 4K installed with my HP ZBook 15 G5 and I am also noticing random disconnects between the laptop and the Dock. I am using the laptop power supply (brick) and the supplied USB-C to USB-C cable. I have one 22" HDMI monitor and one 22" Display port monitor. Have the RJ45 Ether-Net cable connected to a cable modem. Press the [ Windows key] + p to cycle through one of four display states: PC screen only: View the screen image on the computer only. Duplicate: View the screen image simultaneously on both the computer and the external device. Extend: View the screen image extended across both the computer and the external device. USB C Docks - External Monitors Flashing. Just wanting to gauge whether anyone else has ran into this issue with USB C Docks. We have quite a few machines experiencing problems with external monitors flashing. Generally it is the monitor on the HDMI input, though on some does it on both HDMI and DP. When flickering, the screen turns black for a Computer Accessories, Keyboards and Mice by HP. HP Universal USB-C Multiport Hub (50H55AA) Overview. Features. Unlock new possibilities with the HP Universal USB-C Multiport hub, now supporting any USB-C® 1 compatible PC. 7 ports, 1 power and data passthrough cable, and many peripherals to plug and play however you like. Weight: 115 g. 1 SuperSpeed USB Type-C® 5Gbps signaling rate; 2 SuperSpeed USB Type-A 5Gbps signaling rate; 1 HDMI 1.4b; 1 AC smart pin; 1 headphone/microphone combo . It USB Type-C port does NOT support Alt mode nor Power Delivery. You can NOT use it to. Charge your machine; Connect to an external monitor with / without hub/dock/adapter With integrated USB-C connections in several models, you can take advantage of power delivery to your laptop. If you want to use a monitor to charge your laptop with the same connection, now you can. Just plug in the USB-C cable from your monitor to your laptop to extend your display and top off the battery. Connect to an external monitor with/without hub/dock/adapter; If you wish to connect 2 external monitors (only), you can use Monitor 1: HDMI direct cable. Monitor 2: Using a Displaylink Certified USB-A to HDMI adapter such as USB to HDMI Adapter. For more connectivity, please use True Universal Docking Stations . Regards. Expected result: When the external monitor connected to the unit via a HP USB-C dongle or HP USB-C Travel Hub G2, Device Manager recognizes the monitor and monitor can display normally after unplugging the dongle and then replugging to the unit. jDQ9.