External monitors require a certain amount of bandwidth to work properly. Monitors with higher resolution require more bandwidth. NOTE: To learn more about what type of USB-C port is available on your laptop, see the User Guide of the laptop. When disabled, the Thunderbolt Technology feature is disabled, and any connected Thunderbolt adapter devices are not available in preboot or within the operating system. NOTE: If higher resolution monitors are used, the Graphics driver makes a judgment based on monitor specifications and display configurations. Some resolutions may not be supported and is removed from the Intel Graphics Media Control Panel.

HBR2 is DP 1.2 (5.4 Gbps maximum link rate per lane). With DP overhead, the effective data rate is 4.3 Gbps per laneIf the integrated display resolution is FHD (1920 x 1080 @ 60 Hz), two external displays with QHD (2560 x 1440) @ 60 Hz could be supported. NOTES: Linux operating system is unable to physically turn off 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 integrated display plus external display).

Thunderbolt (previously called Light Peak) is a hardware interface that combines data, video, audio, and power in a single connection. Thunderbolt combines PCI Express (PCIe) and DisplayPort (DP) into one serial signal and also provides DC power, all in one cable. While Thunderbolt 1 and Thunderbolt 2 use the same connector as mini-DP (DisplayPort) to connect to peripherals, Thunderbolt 3 uses a USB-C connector. When a new device is plugged in, the USB hub driver notifies the Plug and Playmanager that a new device was detected. The plug and play manager queries the hub driver for all the device's hardware IDs and then notifies the Windows operating system that a new device must be installed. In this scenario, the user sees a hardware installation window. HBR3 (HBR3 x4 lanes + HBR3 x1 - 32.4 Gbps) For Precision 7530/7540/7730/7740 with discrete graphics card If only one monitor is shown, while the other is not, go to Windows Display Properties, and under Multiple Displays, select the output for the second monitor.When it comes to ports, advances in technology have made things a little complicated. You’ll see both USB-A and USB-C ports advertised, as well as the rating of USB 3 and USB 2. These are standards applied to data transfers, and both USB-C and USB 3 are newer. You’ll recognize USB-C by its smaller port size, as seen on newer computers and mobile devices. USB-A is the type you’ve seen for years, with a larger port on both the devices and the cables you plug into them. For additional help, learn How to Set up Multiple Monitors or How to Troubleshoot Multiple Monitor Issues. Verify if the device is detected in Windows Device Manager and that the correct device drivers are installed. HBR3 is DP 1.4 (8.1 Gbps maximum link rate per lane). With DP overhead, the effective data rate is 6.5 Gbps per lane.

Secure Connect - Allow one-time saved key devices at a minimum - the CM requests connection approval from the host SW and autoapproval is only given if the host challenge to the device is acceptable. User Authorization: Approval is required for any new devices that are connected to the Thunderbolt port. DisplayPort Only: Automatically connect to DisplayPort devices only. No Thunderbolt adapter or PCIe devices are allowed to connect. Open the Windows Display Properties and go to Multiple Displays control to set the display to the extended mode. Secure Connect: The Thunderbolt adapter port allows connection to devices that have been configured with a shared key.For compatibility, you’ll need to make sure your chosen Thunderbolt will work with the devices you have. User Authorization - Allow User Notification devices at a minimum - the CM requests connection approval from the host SW and autoapproval may be given based on the Unique ID of the connecting device.