[GH-ISSUE #185] iMac as 2nd Monitor didn't work #137

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opened 2026-05-05 05:14:32 -06:00 by gitea-mirror · 2 comments

gitea-mirror commented

2026-05-05 05:14:32 -06:00

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Originally created by @electricarts on GitHub (Mar 7, 2020).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/185

I use an old iMac as a second monitor on my 5K iMac (Thunderbold 3 -> Mini Display Port). With this it seems not to work. Changes in the menulet are ignored.

Originally created by @electricarts on GitHub (Mar 7, 2020). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/185 I use an old iMac as a second monitor on my 5K iMac (Thunderbold 3 -> Mini Display Port). With this it seems not to work. Changes in the menulet are ignored.

gitea-mirror closed this issue

2026-05-05 05:14:35 -06:00

gitea-mirror commented

2026-05-05 05:14:37 -06:00

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@kumowoon1025 commented on GitHub (Mar 20, 2020):

If the display works that means you're using a AV output adapter, and not the Apple TB3-TB2 adapter right? If the app works using the adapter on a different display, that probably means the iMac in TDM doesn't support DDC. It could be the adapter though. Do you get sound over mDP with this setup?

@kumowoon1025 commented on GitHub (Mar 20, 2020): If the display works that means you're using a AV output adapter, and not the Apple TB3-TB2 adapter right? If the app works using the adapter on a different display, that probably means the iMac in TDM doesn't support DDC. It could be the adapter though. Do you get sound over mDP with this setup?

gitea-mirror commented

2026-05-05 05:14:39 -06:00

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@JoniVR commented on GitHub (Apr 10, 2020):

I'm going to point you to the Monitor troubleshooting guide for this:
https://github.com/the0neyouseek/MonitorControl/wiki/Monitor-Troubleshooting

Feel free to post your setup in #82 after trying the troubleshooting, we're trying to avoid issues for each specific display as that clutters the issue list quite a bit.

@JoniVR commented on GitHub (Apr 10, 2020): I'm going to point you to the Monitor troubleshooting guide for this: https://github.com/the0neyouseek/MonitorControl/wiki/Monitor-Troubleshooting Feel free to post your setup in #82 after trying the troubleshooting, we're trying to avoid issues for each specific display as that clutters the issue list quite a bit.

gitea-mirror referenced this issue

2026-05-05 07:03:31 -06:00

[PR #138] [MERGED] 🇺🇦 Ukrainian localisation update for the new version of app #137 #1057