[GH-ISSUE #236] Thanks! work perfectly for DELL U2720QM #186

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opened 2026-05-05 05:21:36 -06:00 by gitea-mirror · 12 comments
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Originally created by @1c7 on GitHub (Jun 8, 2020).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/236

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Originally created by @1c7 on GitHub (Jun 8, 2020). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/236 ![image](https://user-images.githubusercontent.com/1804755/84076676-c896ae80-aa08-11ea-8b6f-4492168c83b7.png)
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@1c7 commented on GitHub (Jun 8, 2020):

image

<!-- gh-comment-id:640865971 --> @1c7 commented on GitHub (Jun 8, 2020): ![image](https://user-images.githubusercontent.com/1804755/84076782-fa0f7a00-aa08-11ea-9cb7-5c6d2981dc87.png)
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@1c7 commented on GitHub (Jun 8, 2020):

This is a 4k 27 inch monitor made by DELL
image

<!-- gh-comment-id:640866305 --> @1c7 commented on GitHub (Jun 8, 2020): This is a 4k 27 inch monitor made by DELL ![image](https://user-images.githubusercontent.com/1804755/84076857-14e1ee80-aa09-11ea-94c3-f080b86418fc.png)
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@1c7 commented on GitHub (Jun 8, 2020):

I just want open this issue to say thank you
and let other people know it work with this montior model

<!-- gh-comment-id:640866639 --> @1c7 commented on GitHub (Jun 8, 2020): I just want open this issue to say thank you and let other people know it work with this montior model
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@ypresto commented on GitHub (Jun 10, 2020):

@1c7 I want to buy the same display, but in doubt because of #208. (U2720Q and U2720QM seems almost the same model.)
Could you check if it works with P3 color profile?
If does not, can you try this trouble shooting?
https://github.com/MonitorControl/MonitorControl/wiki/Monitor-Troubleshooting

<!-- gh-comment-id:642185877 --> @ypresto commented on GitHub (Jun 10, 2020): @1c7 I want to buy the same display, but in doubt because of #208. (U2720Q and U2720QM seems almost the same model.) Could you check if it works with P3 color profile? If does not, can you try this trouble shooting? https://github.com/MonitorControl/MonitorControl/wiki/Monitor-Troubleshooting
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@1c7 commented on GitHub (Jun 11, 2020):

@ypresto OK, I would try this and let you know the result

<!-- gh-comment-id:642480597 --> @1c7 commented on GitHub (Jun 11, 2020): @ypresto OK, I would try this and let you know the result
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@1c7 commented on GitHub (Jun 11, 2020):

#208 Says after setting the color profile to DCI-P3, the brightness control doesn't work
(from keyboard)

because I am using a Macbook Pro 2017 15 inch,
I don't have brightness control on keyboard(Physical F1-F12 key), it's on touchbar

also, Keyboard Brightness control or touchbar brightness control should only be able to change the laptop brightness, it should not affect external monitor at all.

Anyway, back to the topic.

SMPTE RAP 431-2-2007 DCI(P3) work fine

On DELL U2720QM
After changing color profile to SMPTE RAP 431-2-2007 DCI(P3)
the brightness control still work from taskbar

image

image

Display P3 work fine too

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<!-- gh-comment-id:642489841 --> @1c7 commented on GitHub (Jun 11, 2020): #208 Says after setting the color profile to `DCI-P3`, the **brightness control** doesn't work (from keyboard) because I am using a Macbook Pro 2017 15 inch, I don't have brightness control on keyboard(Physical F1-F12 key), it's on touchbar also, Keyboard Brightness control or touchbar brightness control should only be able to change the laptop brightness, it should not affect external monitor at all. Anyway, back to the topic. ## `SMPTE RAP 431-2-2007 DCI(P3)` work fine On `DELL U2720QM` After changing color profile to `SMPTE RAP 431-2-2007 DCI(P3)` the brightness control still work from taskbar ![image](https://user-images.githubusercontent.com/1804755/84361846-de6dc480-abfe-11ea-974c-359d14f53ffa.png) ![image](https://user-images.githubusercontent.com/1804755/84361858-e3327880-abfe-11ea-9549-d348708fa0fd.png) ## `Display P3` work fine too ![image](https://user-images.githubusercontent.com/1804755/84361901-f3e2ee80-abfe-11ea-9edd-a62f881d3f6e.png)
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@1c7 commented on GitHub (Jun 11, 2020):

image P3 work fine too

image

<!-- gh-comment-id:642490100 --> @1c7 commented on GitHub (Jun 11, 2020): ## `image P3` work fine too ![image](https://user-images.githubusercontent.com/1804755/84361956-09f0af00-abff-11ea-8d40-0ee41ca5afb9.png)
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@1c7 commented on GitHub (Jun 11, 2020):

You can't tell the brightness from screenshot.
but it does work

<!-- gh-comment-id:642490843 --> @1c7 commented on GitHub (Jun 11, 2020): You can't tell the brightness from screenshot. but it does work
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@1c7 commented on GitHub (Jun 11, 2020):

@ypresto if you want more testing before you buy it.
let me know
I am happy to help

it's quite expensive, cost 4099 RMB here in China
I brought it from Taobao

<!-- gh-comment-id:642491531 --> @1c7 commented on GitHub (Jun 11, 2020): @ypresto if you want more testing before you buy it. let me know I am happy to help it's quite expensive, cost `4099` RMB here in China I brought it from Taobao
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@1c7 commented on GitHub (Jun 11, 2020):

I can't find this setting

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<!-- gh-comment-id:642493610 --> @1c7 commented on GitHub (Jun 11, 2020): I can't find this setting ![image](https://user-images.githubusercontent.com/1804755/84362611-145f7880-ac00-11ea-8e27-7c950ce3820d.png)
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@ypresto commented on GitHub (Jun 14, 2020):

Thanks! I finally bought this monitor and tested combinations of settings.

https://github.com/MonitorControl/MonitorControl/issues/208#issuecomment-643726203

Now it is working very well. 🎉

<!-- gh-comment-id:643726468 --> @ypresto commented on GitHub (Jun 14, 2020): Thanks! I finally bought this monitor and tested combinations of settings. https://github.com/MonitorControl/MonitorControl/issues/208#issuecomment-643726203 Now it is working very well. :tada:
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@sunhch commented on GitHub (Jun 24, 2020):

Is volume control also working on your U2720Q? The brightness control is fine, but the volume control does not work on my U2720Q. The OSD window will appear to be working, but the actual volume from speakers does not change.

<!-- gh-comment-id:648502755 --> @sunhch commented on GitHub (Jun 24, 2020): Is volume control also working on your U2720Q? The brightness control is fine, but the volume control does not work on my U2720Q. The OSD window will appear to be working, but the actual volume from speakers does not change.
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Reference: github-starred/MonitorControl#186
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