ASUS Zenbook S 16 + Docking station DC500

[Bob2553]

Hi,
Subject: Driving a Dell U4924DW 5120*1440 WQHD curved wide screen

My Asus Zenbook S16 laptop is connected to an Asus DC500 docking station.
I already tried:

• HDMI: I'm limited to 3840 * 1080
• USB-C: No signal is detected by the monitor !

The Asus DC500 Docking station is supporting 

• [Port 9] HDMI 2.1 
• [Port 10] Thunderbolt™ 4 (DP1.4 / 40 Gb/s)  

How can I connect a Ultra wide screen with a resolution of 5120*1440 (5k) and get the full resolution ?

Thank you in advance for your help

[Falcon_ASUS]

@Bob2553 
May I know the full model of the laptop you are using? 
This will allow me to check the detailed specifications of your device. 
Thank you.
[Windows 11/10] How to check the model name and BIOS version

[Bob2553]

Hi,
Thanks for your feedback. Here are the requested information:

Laptop Asus model: Zenbook S16 UM5606WA
OS: Windows 11 Pro 64 10.026200 
BIOS: 20250711 UM5606WA.319
CPU: AMD Ryzen AI 9 365 w
Graphics: AMD Radeon 880M. Driver version: 32.0.13058.2 date 20250513

Asus Docking station DC500:
- 2 x Ports HDMI™ 2.1
- 1 x Port Thunderbolt™ 4 (DP1.4 / 40 Gb/s / 5V 3A)

Monitor: Dell U4924DW
- 1 x DP 1.4 (HDCP2.2) (supports up to DQHD 5120 x 1440 60 Hz)
- 2 x HDMI ports (HDCP2.2) (supports up to DQHD 5120 x 1440 60 Hz FRL as per specified in HDMI 2.1)
- 1 x USB Type-C upstream port (video and data) (Alternate mode with DisplayPort 1.4)

[thomasenderson]

Hi, the ASUS Zenbook S16 + DC500 setup can’t drive 5120×1440 over HDMI because HDMI on the dock is likely limited to 4K/60Hz or 3840×1080 scaling. For full 5K resolution, use the Thunderbolt 4 (DP 1.4) port on the dock or directly from the laptop’s Thunderbolt/USB-C port with a DP 1.4 to DP 1.4 cable. Make sure the monitor is set to the correct input and DP mode to detect 5120×1440.

[Bob2553]

Thanks for your feedback
When I connect the Dell monitor to the USB-C port (Laptop or docking station) the monitor does not detect any video signal.
Is there something to active to get this port activated instead of HDMI output ?
I read that there is maybe something to be activated in Windows registry to allow such high resolution
This is from Dell

• Monitor displayed image at 3840 x 1080 @ 60 Hz.
  Not able to select 5120 x 1440 in Graphic Control Panel.
  To support 5120 x 1440 @ 60 Hz, check whether the platform meets either of the following:
  1. DP1.2 or higher
  2. Type-C Alt Mode DP1.2 or higher
  3. HDMI 2.1
• Monitor displays image at 3840 x 1080 @ 60 Hz when using Intel Graphic Card.
  Not able to select 5120 x 1440 @ 60 Hz with: Intel CPU Gen10 or lower, and Intel Graphic Driver x.7584 onward
  Intel has disabled 5 K Mode Support in Graphic Driver x.7584 onward, users should install Windows Registry Patch, which enables 5 K Mode Support with Graphic Driver x.7584.