Dell XPS 17 9720 Посібник з підключення - Сторінка 12

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Troubleshooting

8K displays cannot select 8K@60Hz

Question

When I connect an 8K display to the computer using a Thunderbolt or type-C cable directly, the display output only runs

8K@30Hz.

Cause

This is due to a hardware limitation (HDMI 8k@60Hz requires VESA DSC 1.2a PCON IC support which is not supported on the

system).

Workaround

The system is work as designed.

There is no display on the monitor while connecting the

monitor via Dell WD15 dock to the system

Question

When I connect a display monitor to the computer using a Dell WD15 Thunderbolt docking station with Direct Graphics

Controller Direct Output mode enabled (dGPU mode), there is no display output.

Cause

This is due to a hardware limitation on the Dell WD15 dock while Direct Graphics Controller Direct Output mode is enabled on

the system.

Workaround

Use default iGPU mode when connecting the Dell WD15 dock or use latest Dell WD19 or WD22 docking stations.

The display output resolution cannot reach 4K@60Hz while

connecting the display monitor with a HDMI-to-DP or DP-

to-HDMI dongle from the docking station to the system

Question

When I connect a display monitor to the computer using an HDMI-to-DP or DP-to-HDMI dongle from a Dell WD19/WD22

Thunderbolt docking station, the display output resolution cannot reach 4K@60Hz (only 4K@30Hz).

Cause

This is due to a hardware limitation while connecting dongles to the Dell WD19/WD22 (Limited Graphic bandwidth) Thunderbolt

docking station.

Workaround

Connect the monitor directly to the HDMI or DP ports on the Thunderbolt docking station.

Troubleshooting