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[GH-ISSUE #1100] Two Screens on a MacBook pro 14" #654

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opened 2026-05-05 06:26:56 -06:00 by gitea-mirror · 5 comments

gitea-mirror commented

2026-05-05 06:26:56 -06:00

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Originally created by @KoljaL on GitHub (Jul 5, 2022).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1100

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Hi there and thank you for this great app!

I use it on my MBP (M1) with an adapter for two displays (DELL U2412M, via HDMI->DVI cable):

https://de.targus.com/products/hyperdrive-dual-4k-hdmi-10-in-1-usb-c-hub-hdm1h-gl

But i can only see all properties of one display.
For the other there ist only the "software control" item.

Does anyone have experiences with this setup?

Kolja

Originally created by @KoljaL on GitHub (Jul 5, 2022). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1100 ### Before opening the issue, have you...? - [X] Searched for existing issues ### Discussion Hi there and thank you for this great app! I use it on my MBP (M1) with an adapter for two displays (DELL U2412M, via HDMI->DVI cable): https://de.targus.com/products/hyperdrive-dual-4k-hdmi-10-in-1-usb-c-hub-hdm1h-gl But i can only see all properties of one display. For the other there ist only the "software control" item. Does anyone have experiences with this setup? Kolja

gitea-mirror closed this issue

2026-05-05 06:26:57 -06:00

gitea-mirror commented

2026-05-05 06:26:59 -06:00

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@the0neyouseek commented on GitHub (Jul 5, 2022):

As these adapters were made for m1 mac (before m1 pro/max/ultra) which could only support one external display at the time, I'm pretty sure the issue comes from the adapter itself but please follow @waydabber recommendations

@the0neyouseek commented on GitHub (Jul 5, 2022): As these adapters were made for m1 mac (before m1 pro/max/ultra) which could only support one external display at the time, I'm pretty sure the issue comes from the adapter itself but please follow @waydabber recommendations

gitea-mirror commented

2026-05-05 06:27:01 -06:00

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@waydabber commented on GitHub (Jul 5, 2022):

Yes, the adapter has two HDMI outputs, one of them is native the other one is probably DisplayLink.

Can you post a screenshot of what you see under Preferences/Displays?

Thank you!

@waydabber commented on GitHub (Jul 5, 2022): Yes, the adapter has two HDMI outputs, one of them is native the other one is probably DisplayLink. Can you post a screenshot of what you see under Preferences/Displays? Thank you!

gitea-mirror commented

2026-05-05 06:27:03 -06:00

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@KoljaL commented on GitHub (Jul 6, 2022):

To be exact, my MBP is the 14" version with the M1 pro chip.

Here are the screenshots:

Thanks for your interest :-)

@KoljaL commented on GitHub (Jul 6, 2022): To be exact, my MBP is the 14" version with the M1 pro chip. Here are the screenshots: ![](https://user-images.githubusercontent.com/55852574/177513206-d3bc7281-1e1e-437e-a53f-4734b8bbec78.png) ![](https://user-images.githubusercontent.com/55852574/177513207-74f5836c-082f-4a7a-8595-7eb1765fb46e.png) Thanks for your interest :-)

gitea-mirror commented

2026-05-05 06:27:05 -06:00

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@waydabber commented on GitHub (Jul 6, 2022):

Hi @KoljaL - this seems to be a BetterDisplay related issue, so we should move the issue over there. :)

If you click on the "Dell U2412M", a bunch of additional issue should appear. However from the icon I see that this is a virtual display so the problem is with the DisplayLink adapter.

A small improvement you can achieve is that the latest DisplayLink v1.7 beta driver now allows colortable manipulation. There is a preliminary build of BetterDisplay that will allow a slightly better brightness management experience for these adapters:

https://github.com/waydabber/BetterDisplay/issues/750

This will only work properly only if you use the latest DisplayLink beta driver.

@waydabber commented on GitHub (Jul 6, 2022): Hi @KoljaL - this seems to be a BetterDisplay related issue, so we should move the issue over there. :) If you click on the "Dell U2412M", a bunch of additional issue should appear. However from the icon I see that this is a virtual display so the problem is with the DisplayLink adapter. A small improvement you can achieve is that the latest DisplayLink v1.7 beta driver now allows colortable manipulation. There is a preliminary build of BetterDisplay that will allow a slightly better brightness management experience for these adapters: https://github.com/waydabber/BetterDisplay/issues/750 This will only work properly only if you use the latest DisplayLink beta driver.

gitea-mirror commented

2026-05-05 06:27:07 -06:00

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@waydabber commented on GitHub (Jul 8, 2022):

I'll move this to the discussion as there seems to be no issue to be fixed. :)

@waydabber commented on GitHub (Jul 8, 2022): I'll move this to the discussion as there seems to be no issue to be fixed. :)

gitea-mirror referenced this issue

2026-05-05 07:06:12 -06:00

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