Dell P3424WEB Display and Peripheral Manager on Mac Users Guide - Page 73

Unable to detect supported Dell monitor or webcam, Compatibility between DDPM v1.50.x, v1.60.x

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Unable to detect supported Dell monitor or webcam If Dell Display and Peripheral Manager is unable to detect and/or communicate with a supported Dell monitor or webcam, please take following actions to troubleshoot: 1. DDPM will not work if the external monitor is set to Use as Mirror for Builtin Retina Display. Change the Display settings to set external monitor to Use as either Main Display or Extended display.  Display Settings is available at Apple menu > System Preferences >Displays. 2. If connecting HDMI cable not working, switch to use HDMI and USB upstream cable. Launch DDPM again. 3. Check the monitor OSD to ensure DDC/CI is enabled. 4. Remove any docking stations or cable extenders or converters between the monitor and the graphics port. Some low-cost extenders, hubs or converters may not support DDC/CI properly and can fail Dell Display and Peripheral Manager. Update the driver of such device if the latest version is available. 5. Check if the webcam is detected under USB section in System Information 6. Wait for a few seconds after unplugging the webcam before re-connecting it to the computer. 7. Restart your system. Compatibility between DDPM v1.50.x, v1.60.x, v1.0.x, v1.1.x and v1.2 Both software can be installed on a computer if you have older monitors that are not supported by DDPM 1.2. It is highly recommended to uninstall DDPM 1.x if all your monitors are supported by DDPM 1.2. Troubleshooting │ 73

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Troubleshooting± ±
│
± ± 73
Unable to detect supported Dell monitor or webcam
If Dell Display and Peripheral Manager is unable to detect and/or communicate with
a supported Dell monitor or webcam, please take following actions to troubleshoot:
1.
DDPM will not work if the external monitor is set to
Use as Mirror for Built-
in Retina Display
. Change the Display settings to set external monitor to Use
as either
Main Display
or
Extended display
.
Display Settings is available at Apple menu > System Preferences >Displays.
2.
If connecting HDMI cable not working, switch to use HDMI and USB upstream
cable. Launch DDPM again.
3.
Check the monitor OSD to ensure
DDC/CI
is enabled.
4.
Remove any docking stations or cable extenders or converters between the
monitor and the graphics port. Some low-cost extenders, hubs or converters
may not support DDC/CI properly and can fail Dell Display and Peripheral
Manager. Update the driver of such device if the latest version is available.
5.
Check if the webcam is detected under USB section in System Information
6.
Wait for a few seconds after unplugging the webcam before re-connecting it
to the computer.
7.
Restart your system.
Compatibility between DDPM v1.50.x, v1.60.x, v1.0.x, v1.1.x and
v1.2
Both software can be installed on a computer if you have older monitors that are
not supported by DDPM 1.2. It is highly recommended to uninstall DDPM 1.x if all
your monitors are supported by DDPM 1.2.