There is ongoing work to fix DP Monitor control via slider and hot keys here: Waydabber's fork of MonitorControl.
With the latest build I have had good luck with my Dell U3818DW on Big Sur 11.5.
I sometimes have to replug the monitor connected via USB-C after launching the app to get things to work correctly. Currently there are no Release build downloads. You need to:
- Check out the GitHub repo
- Build with Xcode
- Archive and export/copy the result
This might work on HDMI, but I have not tested it.
With the latest build I have had good luck with my Dell U3818DW on Big Sur 11.5.
I sometimes have to replug the monitor connected via USB-C after launching the app to get things to work correctly. Currently there are no Release build downloads. You need to:
- Check out the GitHub repo
- Build with Xcode
- Archive and export/copy the result
This might work on HDMI, but I have not tested it.
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