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[GH-ISSUE #354] Samsung U28570 #281

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opened 2026-05-05 05:40:40 -06:00 by gitea-mirror · 10 comments

gitea-mirror commented

2026-05-05 05:40:40 -06:00

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Originally created by @cprada87 on GitHub (Dec 24, 2020).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/354

Checklist

I have searched for existing issues
I have looked through the Monitor Troubleshooting wiki
I have updated MonitorControl to the latest version

Describe the issue
I can't control any monitor status

Screenshots
Captura de pantalla 2020-12-24 a las 16 10 08

Captura de pantalla 2020-12-24 a las 16 22 55

Environment Information (please complete the following information):

macOS version: Big Sur 11.1
MonitorControl version: 2.1.0 (Build 721)
Monitor(s): Samsung U28570
Mac model: A2289
Monitor Cable(s)/Connection(s): (e.g. DisplayPort) USB-C to HDMI@60hz
https://www.amazon.es/gp/product/B08CSBPPR9/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1

Originally created by @cprada87 on GitHub (Dec 24, 2020). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/354 **Checklist**  - [x] I have searched for existing issues - [x] I have looked through [the Monitor Troubleshooting wiki](https://github.com/MonitorControl/MonitorControl/wiki/Monitor-Troubleshooting) - [x] I have updated MonitorControl to the latest version **Describe the issue** I can't control any monitor status **Screenshots** <img width="256" alt="Captura de pantalla 2020-12-24 a las 16 10 08" src="https://user-images.githubusercontent.com/28503903/103096034-e2918a80-4602-11eb-8b9a-d948c777fa59.png"> <img width="762" alt="Captura de pantalla 2020-12-24 a las 16 22 55" src="https://user-images.githubusercontent.com/28503903/103096498-613af780-4604-11eb-81f3-85a09e139369.png"> **Environment Information (please complete the following information):** - macOS version: **Big Sur 11.1** - MonitorControl version: **2.1.0 (Build 721)** - Monitor(s): **Samsung U28570** - Mac model: **A2289** - Monitor Cable(s)/Connection(s): (e.g. DisplayPort) **USB-C to HDMI@60hz** [https://www.amazon.es/gp/product/B08CSBPPR9/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1](url)

gitea-mirror

2026-05-05 05:40:40 -06:00

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gitea-mirror commented

2026-05-05 05:40:48 -06:00

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@cprada87 commented on GitHub (Feb 26, 2021):

any progress?

@cprada87 commented on GitHub (Feb 26, 2021): any progress?

gitea-mirror commented

2026-05-05 05:40:52 -06:00

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@BerkeAras commented on GitHub (Jul 29, 2021):

Same issue :(

@BerkeAras commented on GitHub (Jul 29, 2021): Same issue :(

gitea-mirror commented

2026-05-05 05:40:55 -06:00

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@BerkeAras commented on GitHub (Jul 29, 2021):

not working in 3.0.0-beta 2

@BerkeAras commented on GitHub (Jul 29, 2021): _not working in 3.0.0-beta 2_

gitea-mirror commented

2026-05-05 05:40:57 -06:00

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@waydabber commented on GitHub (Aug 21, 2021):

Hi, can you please try the latest 3.0.0 RC1? Is it working properly with ddctl?

Also you could try setting DDC polling mode to 'None' under Displays/Advanced (you need to enable Advanced options in the General tab) and try if it works - as your display might provide erroneus max accepted values to MonitorControl and that's why you can't use the sliders.

Thank you and please let me know if this helps!

@waydabber commented on GitHub (Aug 21, 2021): Hi, can you please try the latest 3.0.0 RC1? Is it working properly with ddctl? Also you could try setting DDC polling mode to 'None' under Displays/Advanced (you need to enable Advanced options in the General tab) and try if it works - as your display might provide erroneus max accepted values to MonitorControl and that's why you can't use the sliders. <img width="803" alt="Screen Shot 2021-08-21 at 16 23 15" src="https://user-images.githubusercontent.com/37590873/130324814-ff10235f-50c8-42e3-a460-2389678a5ba6.png"> Thank you and please let me know if this helps!

gitea-mirror commented

2026-05-05 05:40:59 -06:00

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@waydabber commented on GitHub (Aug 25, 2021):

I'll close this issue for now but please feel free to comment if there is anything we can do. If the issue persists, we can reopen this issue! Thank you!

@waydabber commented on GitHub (Aug 25, 2021): I'll close this issue for now but please feel free to comment if there is anything we can do. If the issue persists, we can reopen this issue! Thank you!

gitea-mirror commented

2026-05-05 05:41:02 -06:00

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@cprada87 commented on GitHub (Sep 8, 2021):

the same @waydabber, still does not work, although now it recognizes the monitor model and allows me to move audio and brightness but without result.

@cprada87 commented on GitHub (Sep 8, 2021): the same @waydabber, still does not work, although now it recognizes the monitor model and allows me to move audio and brightness but without result.

gitea-mirror commented

2026-05-05 05:41:04 -06:00

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@waydabber commented on GitHub (Sep 9, 2021):

Hi @cprada87 - does it work properly via ddcctl or Lunar (@alin23)? The screenshot suggests so but it is still not clear if the display is actually controlled via an alternate app. Thank you!

@waydabber commented on GitHub (Sep 9, 2021): Hi @cprada87 - does it work properly via ddcctl or Lunar (@alin23)? The screenshot suggests so but it is still not clear if the display is actually controlled via an alternate app. Thank you!

gitea-mirror commented

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

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@cprada87 commented on GitHub (Sep 13, 2021):

Hi @waydabber, neither of them :( BR

@cprada87 commented on GitHub (Sep 13, 2021): Hi @waydabber, neither of them :( BR

gitea-mirror commented

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

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@alin23 commented on GitHub (Sep 13, 2021):

@cprada87 For brightness you could try disabling the features listed in the Lunar FAQ to see if DDC starts working.

Shot_Safari app_Lunar - Frequently Asked Questions_PqHww9q1

For volume, try disabling the Auto Mute setting if it is enabled, and maybe post a screenshot with the sound settings of your monitor in case there are other features that could block volume changing through DDC.

@alin23 commented on GitHub (Sep 13, 2021): @cprada87 For brightness you could try disabling the features listed in the [Lunar FAQ](https://lunar.fyi/faq#brightness-not-changing) to see if DDC starts working. <img width="1060" alt="Shot_Safari app_Lunar - Frequently Asked Questions_PqHww9q1" src="https://user-images.githubusercontent.com/3819725/133071173-1f2e7a44-c7a8-4cff-959c-f8950503653e.png"> For volume, try disabling the **Auto Mute** setting if it is enabled, and maybe post a screenshot with the sound settings of your monitor in case there are other features that could block volume changing through DDC.

gitea-mirror commented

2026-05-05 05:41:07 -06:00

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@waydabber commented on GitHub (Sep 13, 2021):

Oh boy I wish MonitorControl had such a nice FAQ! :)

I'll move this issue to a discussion for future reference (especially if the above helps).

@waydabber commented on GitHub (Sep 13, 2021): Oh boy I wish MonitorControl had such a nice FAQ! :) I'll move this issue to a discussion for future reference (especially if the above helps).