Post-Login Screen Disconnection and 3:2 HiDPI Scaling Failures

CISHENZF · 02-23-2025, 01:22 PM

Hello

I recently purchased a DisplayLink dock and encountered some issues. Here are the details:

DisplayLink Product:
• Chip: DisplayLink DL-6950
• Ports: HDMI 2.0 × 2
System & Monitors:
• OS: macOS 15.3.1 (Intel processor)
• Monitors: Two 14" portable screens with 2160×1440 resolution (3:2 aspect ratio, non-standard size).

Issues:
1. Screen Connection Behavior:
1.1On startup, both external screens work normally until I enter the login password. After logging in, the screens disconnect (lose signal) and only reconnect once the DisplayLink Manager software launches.
1.2DisplayLink Manager fails to detect the screens: "No DisplayLink-enabled display detected" (even though they are functioning).

2. Resolution & Scaling Issues:
2.1The native resolution (2160×1440) is too small for the 14" screens, making text unreadable.
2.2macOS display settings lack 3:2 scaling options (e.g., 1440×960 HiDPI).
https://postimg.cc/CB0mjFyk

2.3Tried BetterDisplay and SwitchResX 4.14.0 to add custom resolutions, but neither worked:
In SwitchResX, no "Activate immediately" option appears (unlike my Dell U2723QE/U2719DS displays).
https://postimg.cc/mzSVj0Rq
https://postimg.cc/Lg6DbN8s

Failed to enable HiDPI or add custom resolutions.

Please help resolve these issues. Thank you!

CISHENZF · 02-23-2025, 01:49 PM

I have collected the logs and sent them via email to technical-enquiries@synaptics.com. Please check your inbox for the attachment.

02-23-2025, 01:22 PM	#1
CISHENZF Junior Member Join Date: Feb 2025 Posts: 2	Post-Login Screen Disconnection and 3:2 HiDPI Scaling Failures Hello I recently purchased a DisplayLink dock and encountered some issues. Here are the details: DisplayLink Product: • Chip: DisplayLink DL-6950 • Ports: HDMI 2.0 × 2 System & Monitors: • OS: macOS 15.3.1 (Intel processor) • Monitors: Two 14" portable screens with 2160×1440 resolution (3:2 aspect ratio, non-standard size). Issues: 1. Screen Connection Behavior: 1.1On startup, both external screens work normally until I enter the login password. After logging in, the screens disconnect (lose signal) and only reconnect once the DisplayLink Manager software launches. 1.2DisplayLink Manager fails to detect the screens: "No DisplayLink-enabled display detected" (even though they are functioning). 2. Resolution & Scaling Issues: 2.1The native resolution (2160×1440) is too small for the 14" screens, making text unreadable. 2.2macOS display settings lack 3:2 scaling options (e.g., 1440×960 HiDPI). https://postimg.cc/CB0mjFyk 2.3Tried BetterDisplay and SwitchResX 4.14.0 to add custom resolutions, but neither worked: In SwitchResX, no "Activate immediately" option appears (unlike my Dell U2723QE/U2719DS displays). https://postimg.cc/mzSVj0Rq https://postimg.cc/Lg6DbN8s Failed to enable HiDPI or add custom resolutions. Please help resolve these issues. Thank you! Last edited by CISHENZF; 02-25-2025 at 01:59 AM.

02-23-2025, 01:49 PM	#2
CISHENZF Junior Member Join Date: Feb 2025 Posts: 2	I have collected the logs and sent them via email to technical-enquiries@synaptics.com. Please check your inbox for the attachment.