[GH-ISSUE #378] Dell WD19TB dock #300

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opened 2026-05-05 05:42:56 -06:00 by gitea-mirror · 1 comment

gitea-mirror commented

2026-05-05 05:42:56 -06:00

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Originally created by @imag0r on GitHub (Jan 25, 2021).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/378

Checklist

I have searched for existing issues
I have looked through the Monitor Troubleshooting wiki
I have updated MonitorControl to the latest version

Describe the issue
MonitorControl does not work with Dell U3818DW monitor connected via Dell WD19TB dock. It works fine when monitor is connected directly to MacBook. Windows has no trouble controlling monitor volume with or without the dock.

Expected behavior
I am able to control monitor volume.

Environment Information (please complete the following information):

macOS version: 11.1
MonitorControl version: 2.1.0
Monitor(s): Dell U3818
Mac model: MacBook Pro, late 2018
Monitor Cable(s)/Connection(s): MacBook -> (USB-C) -> Dell WD19TB -> (USB-C) -> Dell U3818DW

Originally created by @imag0r on GitHub (Jan 25, 2021). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/378 **Checklist**  - [x] I have searched for existing issues - [x] I have looked through [the Monitor Troubleshooting wiki](https://github.com/MonitorControl/MonitorControl/wiki/Monitor-Troubleshooting) - [x] I have updated MonitorControl to the latest version **Describe the issue** MonitorControl does not work with Dell U3818DW monitor connected via Dell WD19TB dock. It works fine when monitor is connected directly to MacBook. Windows has no trouble controlling monitor volume with or without the dock. **Expected behavior** I am able to control monitor volume. **Environment Information (please complete the following information):** - macOS version: 11.1 - MonitorControl version: 2.1.0 - Monitor(s): Dell U3818 - Mac model: MacBook Pro, late 2018 - Monitor Cable(s)/Connection(s): MacBook -> (USB-C) -> Dell WD19TB -> (USB-C) -> Dell U3818DW

gitea-mirror

2026-05-05 05:42:56 -06:00

closed this issue
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gitea-mirror commented

2026-05-05 05:43:03 -06:00

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@imag0r commented on GitHub (Jan 25, 2021):

After further research found out that this is most likely an issue with the dock not passing DDC. More details: https://github.com/kfix/ddcctl/issues/50. Closing this one.

@imag0r commented on GitHub (Jan 25, 2021): After further research found out that this is most likely an issue with the dock not passing DDC. More details: https://github.com/kfix/ddcctl/issues/50. Closing this one.