The Dell Universal Dock UD22 is designed for laptops with a USB-C port that supports the DisplayPort over USB Type-C protocol. Before using the docking station, ensure that your laptop has a USB-C port that supports DisplayPort over USB Type-C.
NOTE: The Dell Universal Dock UD22 will function on a device with a USB-C port that supports DisplayPort over USB Type-C. When connected to a DisplayPort over USB-C port, the UD22 dock functions in the same way as the WD19 dock. Verify that your laptop supports DisplayPort over USB Type-C.
Figure 1: Dell Universal Dock UD22 Front Ports
| 1. | USB 3.2 Gen2 Type-A Port |
|---|---|
| 2. | USB 3.2 Gen2 Type-A Port w/PowerShare |
| 3 | USB 3.2 Gen2 Type-C Port w/PowerShare |
Figure 2: Dell Universal Dock UD22 Rear Ports
| 1. | AC power |
|---|---|
| 2. | HDMI 2.0 |
| 3. | 2 x DisplayPort 1.2 |
| 4. | Gigabit Ethernet RJ45 |
| 5. | 2 x USB 3.2 Gen2 Type-A |
| 6. | USB 3.2 Gen2 Type-C w/DP 1.4 |
Figure 3: Dell Universal Dock UD22 Right Side
| 1. | Kensington (nano) lock slot |
|---|---|
| 2. | Kensington security-cable slot |
NOTE: Update your laptop’s BIOS and the Dell Docking Station drivers to the latest versions available at the Dell website. Do this before using the docking station for the first time. Your laptop may not recognize or functionoptimally with the docking station when older BIOS versions and drivers are in use.
Dell highly recommends the following applications to automate the installation of BIOS, firmware, driver, and critical updates specific to your computer and docking station:
- Dell | Update - for Dell XPS computers only
- Dell Command | Update - for Dell Latitude, Dell Precision, or XPS computers
NOTE: Dell UD22 dock connection to your computer is required for Dell Update to start software updates on the host computer.
Download and install drivers for Dell UD22 docking station
- Browse to: Dell page
- Click Detect laptop to auto-detect your product.Enter your computer’s Service Tag in the Enter a Service Tag or Express Service Code field.Or click Browse all products to browse to your computer model.
- Select the Operating System.
- Download and install the latest Basic Input/Output System (BIOS) for the computer. This is available in the "BIOS" section.
NOTE: To learn more about updating the BIOS on a Dell computer, see the Dell Knowledge Base article Dell BIOS Updates.
- Download and install the latest Intel or NVIDIA or AMD graphics driver for the computer. This is available in the "Video" section.
- Download and install the latest Realtek USB GBE Ethernet Controller Driver for the docking station. This is available in the "Docks/Stands" section.
- Restart the computer.
- Once the driver update process completes, connect the AC adapter to the Dell UD22 dock first. Then attach the USB Type-C cable to the computer before using the docking station.
NOTE: To learn more about installing device drivers, see the Dell Knowledge Base article:How to download and install a device driver?
Microsoft Windows operating system includes the VGA graphics drivers only. For optimum graphics performance, it is recommended that you install the latest Dell graphics drivers applicable for your laptop. Installation isfrom the laptop's Dell website under the "Video" section.
NOTE:
- For NVIDIA Discrete Graphics solutions on the Latitude and Mobile Dell Precision laptops:
- First, install the Intel Media Adapter Graphics Driver applicable to your laptop.
- Second, install the NVIDIA Discrete Graphics Driver applicable to your laptop.
- For AMD Discrete Graphics solutions on the Latitude and Mobile Dell Precision laptops:
- First, install the Intel Media Adapter Graphics driver applicable to your laptop.
- Second, install the AMD Discrete Graphics driver applicable to your laptop.
Before connecting the docking station to your laptop and connecting a monitor and other external devices, ensure to install all the required drivers.
Connect the monitor to the docking station using the DisplayPort, DisplayPort/USB-C, or HDMI cable provided with the monitor. The docking station supports up to four monitors connected simultaneously. See the Display Resolution Table in the section below for more details about the supported resolution when connecting multiple monitors to the docking station.
| Dual Display | Triple Display | Quad Display |
|---|---|---|
| DisplayPort + DisplayPort | DisplayPort + DisplayPort + HDMI | DisplayPort + DisplayPort + DisplayPort/USB-C + HDMI |
| DisplayPort + HDMI | DisplayPort + DisplayPort + DisplayPort/USB-C | |
| DisplayPort + DisplayPort/USB-C | DisplayPort + DisplayPower/USB-C + HDMI | |
| DisplayPort/USB-C + HDMI |
To learn more about setting up and troubleshooting issues with multiple monitor setups, see these Dell knowledge-base articles:How to Set up Multiple Monitors or How to Troubleshoot Multiple Monitor Issues
Display resolution table
External monitors require a certain amount of bandwidth to work properly. Monitors with higher resolution require more bandwidth.
- DisplayPort High bit rate 2 (HBR2) is DP 1.2 (5.4 Gbps maximum link rate per lane). With DP overhead and UD22 MST display bandwidth, the effective data rate is 4.25 Gbps per lane.
- DisplayPort High bit rate 3 (HBR3) is DP 1.4 (8.1 Gbps maximum link rate per lane). With DP overhead and UD22 MST display bandwidth, the effective data rate is 6.25 Gbps per lane.
- DisplayPort High bit rate 3 (HBR3) with Display Stream Compression (DSC) compression 1:2.1 ratio or higher is DP 1.4 (8.1 Gbps x 2.1 = 17.02 Gbps maximum link rate per lane). With DP overhead and UD22 MST display bandwidth, the effective data rate is 13.125 Gbps per lane.
| Resolution | Minimum bandwidth required (Computer Supported) | ||
|---|---|---|---|
| CVT | CVT-RB | CVT-RB V2 | |
| FHD (1920 × 1080) @60 Hz x1 | 4.15 | 3.33 | 3.2 |
| FHD (1920 × 1080) @60 Hz x2 | 8.3 | 6.66 | 6.4 |
| QHD (2560 × 1440) @60 Hz x1 | 7.49 | 5.8 | 5.63 |
| QHD (2560 × 1440) @60 Hz x2 | 14.98 | 11.6 | 11.26 |
| 4K (3840 × 2160) @30 Hz x1 | 8.13 | 6.31 | 6.18 |
| 4K (3840 × 2160) @30 Hz x2 | 16.26 | 12.62 | 12.36 |
| 4K (3840 × 2160) @60 Hz x1 | 17.1 | 12.8 | 12.54 |
| 4K (3840 x 2160) @60 Hz x2 | 34.2 | 25.6 | 25.08 |
Dell Universal Dock UD22 display resolution and refresh rate table (When UD22 dock driver is installed in the computer).
| Computer and Dell Universal Dock UD22 USB Type-C Specification and Bandwidth | Dell Universal Dock UD22 Max. Resolution and Refresh Rate | ||||
|---|---|---|---|---|---|
| USB over USB Type-C | DP Alternative Mode over USB Type-C | USB Graphic Mode | DP Alternative Mode | ||
| DisplayPort-1 (Near HDMI) | DisplayPort-2 (New Ethernet RJ45) | HDMI | USB Type-C MFDP | ||
| USB 3.2/3.1/3.0 Gen2 or Gen1 | HBR2 x2 lanes=8.5 Gbps (Computer DSC disable) | 4K (3840 × 2160) @60 Hz | 4K (3840 × 2160) @60 Hz | HDMI and USB Type-C MFDP share 8.5 Gbps
| |
| USB 3.2/3.1/3.0 Gen2 or Gen1 | HBR3 x2 lanes=12.5 Gbps (Computer DSC disable) | 4K (3840 × 2160) @60 Hz | 4K (3840 × 2160) @60 Hz | HDMI and USB Type-C MFDP share 12.5 Gbps
| |
| USB 3.2/3.1/3.0 Gen2 or Gen1 | HBR3 x2 lanes=26.25 Gbps (DSC enable, and DP Compression ratio=1:2.1 or above) | 4K (3840 × 2160) @60 Hz | 4K (3840 × 2160) @60 Hz | HDMI and USB Type-C MFDP share 26.25 Gbps
| |
Dell Universal Dock UD22 display resolution and refresh rate table (When UD22 dock driver is NOT installed in the computer or under computer BIOS environment).
| Computer and Dell Universal Dock UD22 USB Type-C Specification and Bandwidth | Dell Universal Dock UD22 Max. Resolution and Refresh Rate | |||
|---|---|---|---|---|
| USB over USB Type-C | DP Alternative Mode over USB Type-C | USB Graphic Mode | DP Alternative Mode | |
| DisplayPort-2 (New Ethernet RJ45) | DisplayPort-1 (Near HDMI) or USB Type-C MFDP (supports only one display at a time) | HDMI | ||
| USB 3.2/3.1/3.0 Gen2 or Gen1 | HBR2 x2 lanes=8.5 Gbps (Computer DSC disable) | No Display | DP-1 and/or USB Type-C MFDP and HDMI share 8.5 Gbps
| |
| USB 3.2/3.1/3.0 Gen2 or Gen1 | HBR3 x2 lanes=12.5 Gbps (Computer DSC disable) | No Display | DP-1 and/or USB Type-C MDFP and HDMI share 12.5 Gbps
| |
| USB 3.2/3.1/3.0 Gen2 or Gen1 | HBR3 x2 lanes=26.25 Gbps (DSC enable, and DP Compression ratio=1:2.1 or above) | No Display | DP-1/USB Type-C MFDP and HDMI share 26.25 Gbps
| |
NOTE: If higher resolution monitors are used, the graphics driver makes a judgment based on the monitor specifications and display configurations. Some resolutions may not be supported and areremoved from the Windows Display Control Panel.
NOTE: Linux operating systems are unable to physically turn-off the integrated display. The external display numbers are one less than the display numbers listed in the above tables.
If the Display Port Data Rate is HBR2 then the maximum resolution that Linux supports is 8192 x 8192 (counted with the integrated display plus external display.
NOTE: Resolution support is also dependent on the monitor’s Extended Display Identification Data (EDID) resolution.
