EliteBook 745 G6 docks: choose USB-C first, qualify the G2 path

Which dock options should you consider?

For HP EliteBook 745 G6, HP USB-C Dock G5 is the least ambiguous documented choice: HP's July 2020 compatibility sheet names the exact notebook, the dock uses one captive USB-C host cable, and it can supply up to 100 W to supported HP systems. Start with one or two FHD60 screens on the rear video outputs; HP's generic two-4K and three-screen G5 modes depend on the host's DisplayPort revision, DSC and dock display mode, none of which HP establishes for this exact model. HP's 2019 table also lists Thunderbolt Dock 120W G2 (2UK37AA), but the 745 G6 is an AMD USB-C host rather than a documented Thunderbolt host. Treat that listing as a USB-C fallback/reuse path, not proof that rear-Thunderbolt video or a particular multi-monitor mode works.

Connect displays and power

G5 host cable

Power the G5 with its matching 120 W adapter, then connect the captive USB-C cable directly to the notebook's video-capable USB-C port.

G5 monitor outputs

Use the two rear DisplayPorts or rear HDMI. The front USB-C socket is data plus 15 W accessory power and is not a monitor output.

Safe display baseline

Start with one screen at FHD60, then add a second. Two 4K60 or three-screen claims require host DP/DSC evidence that HP does not publish for this exact notebook.

G2 fallback

Attach the G2 host cable directly and use its DisplayPort outputs first. There is no built-in HDMI socket, and rear-Thunderbolt video is not established on this non-Thunderbolt host.

Power

Both documented dock packages can provide up to 100 W to supported HP hosts. That is a dock ceiling, not a measurement of this notebook; retain the original HP adapter for isolation.

First recovery steps by symptom

Nothing on the dock responds

1. Disconnect the host cable, dock AC and peripherals.
2. Reconnect the dock's matching AC adapter first, then attach its supplied host cable directly to the notebook USB-C port.
3. Prove one USB device before restoring Ethernet and displays.

USB works but a monitor is blank

1. Reduce the desk to one FHD60 monitor on a rear dock video output and select that input manually.
2. Reseat the monitor cable and host cable, then use Windows Display Detect.
3. If G2 is in use, begin on DisplayPort and do not rely on rear-Thunderbolt video; add the second screen only after the first is stable.

Charging is absent or slow

1. Confirm the exact dock package, matching power brick and captive/supplied host cable.
2. Remove high-draw dock accessories and reconnect the USB-C host lead directly.
3. Compare direct charging with the original HP adapter; if direct charging works, update dock firmware and treat dock delivery or cabling as the boundary.

The dock disconnects after sleep

1. Power-cycle the dock and reconnect it after Windows has resumed.
2. Install the exact EliteBook BIOS, graphics/USB components and the selected dock firmware from HP.
3. Retest with one peripheral and one monitor before rebuilding the desk.

Still unknown: HP does not publish the exact dock-facing DisplayPort revision, DSC status, combined monitor table or Thunderbolt-fallback feature set for EliteBook 745 G6. The installed Ryzen configuration, monitor EDIDs, cables/adapters, mixed refresh and color depth, HDR, current BIOS and dock firmware, Windows build, sleep/wake behavior, actual charging rate and physical field reliability remain unknown. Connect Your Dock did not test this hardware.

Compare documented options · Check screens and power

Applies only to HP EliteBook 745 G6. It does not transfer to EliteBook 745 G5/G7, 840-series models or another AMD notebook with a similar USB-C socket. Sources reviewed 21 September 2026. Manufacturer documentation is not a Connect Your Dock hardware test.