[GH-ISSUE #110] Brightness works great, but I Still can't control the volume from my monitor

gitea-mirror commented

2026-05-05 04:59:17 -06:00

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Originally created by @ulisesyaniz on GitHub (Jul 12, 2019).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/110

Originally assigned to: @waydabber on GitHub.

Brightness works great, but I Still can't control the volume from my monitor

Please help me fix this issue.

Originally created by @ulisesyaniz on GitHub (Jul 12, 2019). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/110 Originally assigned to: @waydabber on GitHub. Brightness works great, but I Still can't control the volume from my monitor Please help me fix this issue.

gitea-mirror

2026-05-05 04:59:17 -06:00

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gitea-mirror commented

2026-05-05 04:59:23 -06:00

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@ulisesyaniz commented on GitHub (Jul 12, 2019):

External Monitor: BENQ PD3220U
Connection: USB-C / Thunderbolt 3
Device: 2019 Macbook Pro touchBar

@ulisesyaniz commented on GitHub (Jul 12, 2019): External Monitor: BENQ PD3220U Connection: USB-C / Thunderbolt 3 Device: 2019 Macbook Pro touchBar

gitea-mirror commented

2026-05-05 04:59:26 -06:00

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@womeimingzi11 commented on GitHub (Jul 26, 2019):

First, I suggest you can try to install this https://github.com/kfix/ddcctl

Then, run

ddcctl -O -d 1 -v 60

This command may be different for you, which the -d 1 means the first external screen of my MBP, and -v 60 means put the volume to 60%

If it doesn't work on your Monitor, it may be the issue of your monitor's firmware, I don't think MonitorControl can handle this.

@womeimingzi11 commented on GitHub (Jul 26, 2019): First, I suggest you can try to install this https://github.com/kfix/ddcctl Then, run > ddcctl -O -d 1 -v 60 This command may be different for you, which the -d 1 means the first external screen of my MBP, and -v 60 means put the volume to 60% If it doesn't work on your Monitor, it may be the issue of your monitor's firmware, I don't think MonitorControl can handle this.

gitea-mirror commented

2026-05-05 04:59:29 -06:00

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@leondeng commented on GitHub (Aug 15, 2019):

Same issue here.
MBP 15 Mid 2015
macOS 10.14.6
DELL U3415W via min DP to DP link

@leondeng commented on GitHub (Aug 15, 2019): Same issue here. MBP 15 Mid 2015 macOS 10.14.6 DELL U3415W via min DP to DP link

gitea-mirror commented

2026-05-05 04:59:33 -06:00

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@JoniVR commented on GitHub (Aug 19, 2019):

@leondeng @ulisesyaniz Please try @womeimingzi11 's suggestion and paste your output here.

@JoniVR commented on GitHub (Aug 19, 2019): @leondeng @ulisesyaniz Please try @womeimingzi11 's suggestion and paste your output here.

gitea-mirror commented

2026-05-05 04:59:36 -06:00

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@m9tdev commented on GitHub (Sep 30, 2019):

Found out that controlling the volume for my Dell U3415W works, but it just does not have effect when I've got a 3.5mm plugged into the monitor for some reason...

@m9tdev commented on GitHub (Sep 30, 2019): Found out that controlling the volume for my Dell U3415W works, but it just does not have effect when I've got a 3.5mm plugged into the monitor for some reason...

gitea-mirror commented

2026-05-05 04:59:39 -06:00

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@Spirotot commented on GitHub (Nov 1, 2019):

@mathieupost You're saying it works for you, 100% as expected, without 3.5mm plugged into your monitor?

I haven't tried with 3.5mm, but I've noticed that without, the U3415w's volume value is changed. However, it does not go into effect until I either:

Restart the display (by toggling via the monitor's power button, or otherwise putting it to sleep/waking it back up).
Manually adjust the volume settings via the OSD (i.e. increasing or decreasing the monitor's volume value by 1).

@Spirotot commented on GitHub (Nov 1, 2019): @mathieupost You're saying it works for you, 100% as expected, _without_ 3.5mm plugged into your monitor? I haven't tried _with_ 3.5mm, but I've noticed that _without_, the U3415w's volume value is changed. However, it does not go into effect until I either: * Restart the display (by toggling via the monitor's power button, or otherwise putting it to sleep/waking it back up). * Manually adjust the volume settings via the OSD (i.e. increasing or decreasing the monitor's volume value by 1).

gitea-mirror commented

2026-05-05 04:59:41 -06:00

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@ghost commented on GitHub (Dec 27, 2019):

Same here Dell U2719D with 3.5 mm jack. Volume controls not working.

@ghost commented on GitHub (Dec 27, 2019): Same here Dell U2719D with 3.5 mm jack. Volume controls not working.

gitea-mirror commented

2026-05-05 04:59:43 -06:00

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@JoniVR commented on GitHub (Jan 9, 2020):

Found out that controlling the volume for my Dell U3415W works, but it just does not have effect when I've got a 3.5mm plugged into the monitor for some reason...

@mathieupost @r3ppy Make sure your display is set as audio output device. If the audio output device is set to anything other than the display you want to control it won't work. This is to make sure that you can still change volume when using headphones and other devices.

@JoniVR commented on GitHub (Jan 9, 2020): > Found out that controlling the volume for my Dell U3415W works, but it just does not have effect when I've got a 3.5mm plugged into the monitor for some reason... @mathieupost @r3ppy Make sure your display is set as audio output device. If the audio output device is set to anything other than the display you want to control it won't work. This is to make sure that you can still change volume when using headphones and other devices.

gitea-mirror commented

2026-05-05 04:59:46 -06:00

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@gmelikov commented on GitHub (Jan 15, 2020):

Same here, HP z27, connected via usb type-c,

$ ./ddcctl -d 1 -v 30
D: NSScreen #59592011 (3008x1692 0°) HiDPI
I: found 1 external display
I: polling display 1's EDID
I: got edid.name: HP Z27
I: got edid.serial: CN49020051
D: action: v: 30
D: setting VCP control #98 => 30

,ddcctl command doesn't change anything, volume continue to be on max, tried to power reset monitor too.

@gmelikov commented on GitHub (Jan 15, 2020): Same here, HP z27, connected via usb type-c, ``` $ ./ddcctl -d 1 -v 30 D: NSScreen #59592011 (3008x1692 0°) HiDPI I: found 1 external display I: polling display 1's EDID I: got edid.name: HP Z27 I: got edid.serial: CN49020051 D: action: v: 30 D: setting VCP control #98 => 30 ``` ,ddcctl command doesn't change anything, volume continue to be on max, tried to power reset monitor too.

gitea-mirror commented

2026-05-05 04:59:48 -06:00

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@JoniVR commented on GitHub (Jan 24, 2020):

@gmelikov Unfortunately not every monitor supports ddc perfectly.. there's really nothing we can do about it sometimes.. what you can try (and what does sometimes help for people) is trying another connecter (displayport usually has the most success), but chances are it's just a bad ddc implementation of the manufacturer.

@JoniVR commented on GitHub (Jan 24, 2020): @gmelikov Unfortunately not every monitor supports ddc perfectly.. there's really nothing we can do about it sometimes.. what you can try (and what does sometimes help for people) is trying another connecter (displayport usually has the most success), but chances are it's just a bad ddc implementation of the manufacturer.

gitea-mirror commented

2026-05-05 04:59:51 -06:00

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@JoniVR commented on GitHub (Apr 3, 2020):

For anyone else running into issues, see the troubleshooting wiki:
https://github.com/the0neyouseek/MonitorControl/wiki/Monitor-Troubleshooting

Regarding the 3.5mm issue, can you provide some more info? What version MonitorControl, macOS, ...
Also, it would be really helpful if someone with the issue could run the project in Xcode and post the debug output here.

@JoniVR commented on GitHub (Apr 3, 2020): For anyone else running into issues, see the troubleshooting wiki: https://github.com/the0neyouseek/MonitorControl/wiki/Monitor-Troubleshooting Regarding the 3.5mm issue, can you provide some more info? What version MonitorControl, macOS, ... Also, it would be really helpful if someone with the issue could run the project in Xcode and post the debug output here.

gitea-mirror commented

2026-05-05 04:59:53 -06:00

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@sonotley commented on GitHub (Apr 30, 2020):

Same issue for me. Mac OS Mojave, Mac Mini 2012, connected via mini-DP to Dell U2715H. The volumn control is re-enabled but has no effect. ddcctl has no effect either, the volume remains at 98 even after trying to change. I am also using speakers connected by 3.5mm jack but can;t test any other option as this monitor doesn't have internal speakers.

D: NSScreen #724850640 (2560x1440 0°) 109.00 DPI
I: found 1 external display
I: polling display 1's EDID
I: got edid.serial: GH85D7CN0KNS
I: got edid.name: DELL U2715H
D: action: v: 20
D: setting VCP control #98 => 20

@sonotley commented on GitHub (Apr 30, 2020): Same issue for me. Mac OS Mojave, Mac Mini 2012, connected via mini-DP to Dell U2715H. The volumn control is re-enabled but has no effect. ddcctl has no effect either, the volume remains at 98 even after trying to change. I am also using speakers connected by 3.5mm jack but can;t test any other option as this monitor doesn't have internal speakers. > D: NSScreen #724850640 (2560x1440 0°) 109.00 DPI > I: found 1 external display > I: polling display 1's EDID > I: got edid.serial: GH85D7CN0KNS > I: got edid.name: DELL U2715H > D: action: v: 20 > D: setting VCP control #98 => 20

gitea-mirror commented

2026-05-05 04:59:55 -06:00

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@snooz3r commented on GitHub (May 8, 2020):

External Monitor: BENQ PD3220U
Connection: USB-C / Thunderbolt 3
Device: 2019 Macbook Pro touchBar

I have the same issue because I have the same exact setup. Were you able to find a solution?

@snooz3r commented on GitHub (May 8, 2020): > External Monitor: BENQ PD3220U > Connection: USB-C / Thunderbolt 3 > Device: 2019 Macbook Pro touchBar I have the same issue because I have the same exact setup. Were you able to find a solution?

gitea-mirror commented

2026-05-05 04:59:58 -06:00

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@ghost commented on GitHub (May 8, 2020):

Software-wise, no. Added a volume control knob in between monitors and speaker: fostex pc-1.

Op 9 mei 2020 om 00:49 heeft Rico Lajom notifications@github.com het volgende geschreven:

External Monitor: BENQ PD3220U
Connection: USB-C / Thunderbolt 3
Device: 2019 Macbook Pro touchBar

I have the same issue because I have the same exact setup. Were you able to find a solution?

—
You are receiving this because you were mentioned.
Reply to this email directly, view it on GitHub, or unsubscribe.

@ghost commented on GitHub (May 8, 2020): Software-wise, no. Added a volume control knob in between monitors and speaker: fostex pc-1. > Op 9 mei 2020 om 00:49 heeft Rico Lajom <notifications@github.com> het volgende geschreven: > > > External Monitor: BENQ PD3220U > Connection: USB-C / Thunderbolt 3 > Device: 2019 Macbook Pro touchBar > > I have the same issue because I have the same exact setup. Were you able to find a solution? > > — > You are receiving this because you were mentioned. > Reply to this email directly, view it on GitHub, or unsubscribe.

gitea-mirror commented

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

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@snooz3r commented on GitHub (May 8, 2020):

Software-wise, no. Added a volume control knob in between monitors and speaker: fostex pc-1.
…
Op 9 mei 2020 om 00:49 heeft Rico Lajom @.***> het volgende geschreven: External Monitor: BENQ PD3220U Connection: USB-C / Thunderbolt 3 Device: 2019 Macbook Pro touchBar I have the same issue because I have the same exact setup. Were you able to find a solution? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or unsubscribe.

I played around with this solution (Soundflower) for the volume control and it works! [https://www.macrumors.com/how-to/use-mac-volume-keys-adjust-monitor-audio/]

I use the Monitor Display to only control the brightness. Hope the Soundflower helps. ***Also note to change the knob set to 100 so when you control it through your Mac, it's not too quiet and will have a better volume range.

@snooz3r commented on GitHub (May 8, 2020): > Software-wise, no. Added a volume control knob in between monitors and speaker: fostex pc-1. > […](#) > Op 9 mei 2020 om 00:49 heeft Rico Lajom ***@***.***> het volgende geschreven: External Monitor: BENQ PD3220U Connection: USB-C / Thunderbolt 3 Device: 2019 Macbook Pro touchBar I have the same issue because I have the same exact setup. Were you able to find a solution? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or unsubscribe. I played around with this solution (Soundflower) for the volume control and it works! [https://www.macrumors.com/how-to/use-mac-volume-keys-adjust-monitor-audio/] I use the Monitor Display to only control the brightness. Hope the Soundflower helps. ***Also note to change the knob set to 100 so when you control it through your Mac, it's not too quiet and will have a better volume range.

gitea-mirror commented

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

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@kingo132 commented on GitHub (Sep 3, 2020):

@mathieupost You're saying it works for you, 100% as expected, without 3.5mm plugged into your monitor?

I haven't tried with 3.5mm, but I've noticed that without, the U3415w's volume value is changed. However, it does not go into effect until I either:

Restart the display (by toggling via the monitor's power button, or otherwise putting it to sleep/waking it back up).

Manually adjust the volume settings via the OSD (i.e. increasing or decreasing the monitor's volume value by 1).

I have the same issue with my U3415w. ddcctl successfully changed the volume, but it won't take effect until I adjust the volume via OSD by 1 value. Maybe this is the DDC implementation problem of DELL. Is there any solution to workaround?

@kingo132 commented on GitHub (Sep 3, 2020): > @mathieupost You're saying it works for you, 100% as expected, _without_ 3.5mm plugged into your monitor? > > I haven't tried _with_ 3.5mm, but I've noticed that _without_, the U3415w's volume value is changed. However, it does not go into effect until I either: > > * Restart the display (by toggling via the monitor's power button, or otherwise putting it to sleep/waking it back up). > * Manually adjust the volume settings via the OSD (i.e. increasing or decreasing the monitor's volume value by 1). I have the same issue with my U3415w. ddcctl successfully changed the volume, but it won't take effect until I adjust the volume via OSD by 1 value. Maybe this is the DDC implementation problem of DELL. Is there any solution to workaround?

gitea-mirror commented

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

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

Unfortunatelly this issue can't be resolved as this is a display firmware specific problem. I'll close this issue for now but let us know if we can help in any way or submit a specific issue using the new issue templates. Thank you!

@waydabber commented on GitHub (Aug 21, 2021): Unfortunatelly this issue can't be resolved as this is a display firmware specific problem. I'll close this issue for now but let us know if we can help in any way or submit a specific issue using the new issue templates. Thank you!

gitea-mirror commented

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

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@candasm commented on GitHub (Apr 27, 2023):

Did anyone tried to update their monitors firmware? As I saw on dell's website there was a firmware update released on 2017.

@candasm commented on GitHub (Apr 27, 2023): Did anyone tried to update their monitors firmware? As I saw on dell's website there was a firmware update released on 2017.

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2026-05-05 07:02:52 -06:00

[PR #81] [MERGED] Update DDC.swift. #1038

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[GH-ISSUE #110] Brightness works great, but I Still can't control the volume from my monitor #81