[GH-ISSUE #1251] Not available on Dell U3415W #725

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opened 2026-05-05 06:35:32 -06:00 by gitea-mirror · 1 comment

gitea-mirror commented

2026-05-05 06:35:32 -06:00

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Originally created by @tedshim on GitHub (Dec 12, 2022).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1251

Before opening the issue, have you...?

Searched for existing issues
Read through the Monitor-Troubleshooting Wiki
Updated MonitorControl to the latest version (if applicable)

Describe the issue

Not available on Dell U3415W

Expected behavior

available on Dell U3415W

Anything else?

No response

Environment Information (please complete the following information)

- macOS version: 12.6 macOS Monterey
- Mac model: MacBook Pro (16-inch, 2019)
- MonitorControl version: 4.1.0
- Monitor(s): Dell U3415W
- Monitor Cable(s)/Connection(s): Mac book Usb 3.0 -> Displayport 2.1 -> Dell U3415W
- Apple Silicon/M1 (yes or no): no

Originally created by @tedshim on GitHub (Dec 12, 2022). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1251 ### Before opening the issue, have you...? - [X] Searched for existing issues - [X] Read through [the Monitor-Troubleshooting Wiki](https://github.com/MonitorControl/MonitorControl/wiki/Monitor-Troubleshooting) - [X] Updated MonitorControl to the latest version (if applicable) ### Describe the issue Not available on Dell U3415W ### Expected behavior available on Dell U3415W ### Anything else? _No response_ ### Environment Information (please complete the following information) ```markdown - macOS version: 12.6 macOS Monterey - Mac model: MacBook Pro (16-inch, 2019) - MonitorControl version: 4.1.0 - Monitor(s): Dell U3415W - Monitor Cable(s)/Connection(s): Mac book Usb 3.0 -> Displayport 2.1 -> Dell U3415W - Apple Silicon/M1 (yes or no): no ```

gitea-mirror

2026-05-05 06:35:32 -06:00

closed this issue
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gitea-mirror commented

2026-05-05 06:35:37 -06:00

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@waydabber commented on GitHub (Jan 11, 2023):

if you are using a standard USB 3.0 to DisplayPort adapter then it is possible a DisplayLink adapter which does not support DDC communications on the Mac. Your only option is software dimming. Alternatively you can try BetterDisplay and force Color table manipulation in Settings/Displays as newer DisplayLink drivers do support this more advanced form of dimming.

@waydabber commented on GitHub (Jan 11, 2023): if you are using a standard USB 3.0 to DisplayPort adapter then it is possible a DisplayLink adapter which does not support DDC communications on the Mac. Your only option is software dimming. Alternatively you can try [BetterDisplay](https://github.com/waydabber/BetterDisplay#readme) and force Color table manipulation in Settings/Displays as newer DisplayLink drivers do support this more advanced form of dimming.