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[GH-ISSUE #927] It doesn't work for the sidecar display with ipad #571

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opened 2026-05-05 06:16:41 -06:00 by gitea-mirror · 4 comments

gitea-mirror commented

2026-05-05 06:16:41 -06:00

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Originally created by @ycxbox on GitHub (Feb 2, 2022).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/927

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

Hi Bro,

Does anyone has ever tried the monitorcontrol for the iPad sidecar display with mac book pro?
it doesn't work in this scenario, or maybe it doesn't support it well. when I tried in this way, it popup with an error message asking me to decide eighter to quit the blocking program or stop something with gamma which i don't understand.... but anyway, it just can not adjust the sidecar iPad brightness as it does with any other monitor else.
wish it can support the sidecar approach, thanks, guys !!

Best regards,
Jeff Yu

Expected behavior

hope it can support sidecar display brightness control

Anything else?

nothing else ~

Environment Information (please complete the following information)

- macOS version: 12.1
- Mac model: MBP 2019
- MonitorControl version: latestone
- Monitor(s): ipad
- Monitor Cable(s)/Connection(s): wifi/cable
- Apple Silicon/M1 (yes or no): No

Originally created by @ycxbox on GitHub (Feb 2, 2022). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/927 ### 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 Hi Bro, Does anyone has ever tried the monitorcontrol for the iPad sidecar display with mac book pro? it doesn't work in this scenario, or maybe it doesn't support it well. when I tried in this way, it popup with an error message asking me to decide eighter to quit the blocking program or stop something with gamma which i don't understand.... but anyway, it just can not adjust the sidecar iPad brightness as it does with any other monitor else. wish it can support the sidecar approach, thanks, guys !! <img width="1680" alt="截屏2022-02-02 上午9 20 01" src="https://user-images.githubusercontent.com/4571144/152078537-330c526d-1201-48af-8380-975c16819b2d.png"> Best regards, Jeff Yu ### Expected behavior hope it can support sidecar display brightness control ### Anything else? nothing else ~ ### Environment Information (please complete the following information) ```markdown - macOS version: 12.1 - Mac model: MBP 2019 - MonitorControl version: latestone - Monitor(s): ipad - Monitor Cable(s)/Connection(s): wifi/cable - Apple Silicon/M1 (yes or no): No ```

gitea-mirror closed this issue

2026-05-05 06:16:43 -06:00

gitea-mirror commented

2026-05-05 06:16:46 -06:00

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@waydabber commented on GitHub (Feb 2, 2022):

Sidecar brightness change should work in software mode. Sidecar does not support gamma mode so there should not be a popup like that.

@waydabber commented on GitHub (Feb 2, 2022): Sidecar brightness change should work in software mode. Sidecar does not support gamma mode so there should not be a popup like that.

gitea-mirror commented

2026-05-05 06:16:48 -06:00

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@ycxbox commented on GitHub (Feb 9, 2022):

Hi Bros~

it does give an error message like what I mentioned above, I tried to replicate the same error by using another mac book pro, please see the message below:
截屏2022-02-02 上午10 46 07

Is there any workaround that I can do to make it works under the sidecar scenario, thanks, man!

Best regards,
Jeff

@ycxbox commented on GitHub (Feb 9, 2022): Hi Bros~ it does give an error message like what I mentioned above, I tried to replicate the same error by using another mac book pro, please see the message below: <img width="1112" alt="截屏2022-02-02 上午10 46 07" src="https://user-images.githubusercontent.com/4571144/153106563-bab3c206-415e-4f52-806b-fcfb07d60598.png"> Is there any workaround that I can do to make it works under the sidecar scenario, thanks, man! Best regards, Jeff

gitea-mirror commented

2026-05-05 06:16:50 -06:00

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@waydabber commented on GitHub (Feb 9, 2022):

Sidecar control should work just fine. The message (I think - I can't read Chinese) is about some other app interfering with MonitorControl when trying to use gamma control - this method of control is not used with Sidecar. What happens if you just allow the app to disable gamma control?

@waydabber commented on GitHub (Feb 9, 2022): Sidecar control should work just fine. The message (I think - I can't read Chinese) is about some other app interfering with MonitorControl when trying to use gamma control - this method of control is not used with Sidecar. What happens if you just allow the app to disable gamma control?

gitea-mirror commented

2026-05-05 06:16:52 -06:00

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@waydabber commented on GitHub (Feb 23, 2022):

I'll close this one for now due to inactivity. If there is any more info about this, please let me know!

@waydabber commented on GitHub (Feb 23, 2022): I'll close this one for now due to inactivity. If there is any more info about this, please let me know!