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[GH-ISSUE #1134] brightness control works but Volume doesnt work. #667

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opened 2026-05-05 06:28:27 -06:00 by gitea-mirror · 4 comments

gitea-mirror commented

2026-05-05 06:28:27 -06:00

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Originally created by @tarunprakashsingh on GitHub (Aug 9, 2022).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1134

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

Volume control doesnt work.... volume up/down and mute shows up on the screen but volume is not effected.
Brightness control works perfectly.
I am using Macbook pro Max. external monitor LG 32UN650-W.

Expected behavior

volume should go up/down or mute the volume

Anything else?

No response

Environment Information (please complete the following information)

- macOS version: monterey
- Mac model: macbook pro max
- MonitorControl version: 4.1.0 nuild 7034
- Monitor(s): lg 32UN650-W.
- Monitor Cable(s)/Connection(s): hdmi
- Apple Silicon/M1 (yes or no): yes

Originally created by @tarunprakashsingh on GitHub (Aug 9, 2022). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1134 ### 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 Volume control doesnt work.... volume up/down and mute shows up on the screen but volume is not effected. Brightness control works perfectly. I am using Macbook pro Max. external monitor LG 32UN650-W. ### Expected behavior volume should go up/down or mute the volume ### Anything else? _No response_ ### Environment Information (please complete the following information) ```markdown - macOS version: monterey - Mac model: macbook pro max - MonitorControl version: 4.1.0 nuild 7034 - Monitor(s): lg 32UN650-W. - Monitor Cable(s)/Connection(s): hdmi - Apple Silicon/M1 (yes or no): yes ```

gitea-mirror closed this issue

2026-05-05 06:28:28 -06:00

gitea-mirror commented

2026-05-05 06:28:32 -06:00

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@brian-petersen commented on GitHub (Aug 9, 2022):

Same issue here! Pretty much same setup except I'm using a DP cable.

@brian-petersen commented on GitHub (Aug 9, 2022): Same issue here! Pretty much same setup except I'm using a DP cable.

gitea-mirror commented

2026-05-05 06:28:35 -06:00

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@tarunprakashsingh commented on GitHub (Aug 9, 2022):

so HDMI is not working?
Can you suggest which cable you are using, so I get the same one and
avoid issues.

On Tue, Aug 9, 2022 at 3:58 PM Brian Petersen @.***>
wrote:

Same issue here! Pretty much same setup except I'm using a DP cable.

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@tarunprakashsingh commented on GitHub (Aug 9, 2022): so HDMI is not working? Can you suggest which cable you are using, so I get the same one and avoid issues. On Tue, Aug 9, 2022 at 3:58 PM Brian Petersen ***@***.***> wrote: > Same issue here! Pretty much same setup except I'm using a DP cable. > > — > Reply to this email directly, view it on GitHub > <https://github.com/MonitorControl/MonitorControl/issues/1134#issuecomment-1209814586>, > or unsubscribe > <https://github.com/notifications/unsubscribe-auth/AAFTGSKUJCJHMYANOMIITC3VYKZ5TANCNFSM56BQCRGQ> > . > You are receiving this because you authored the thread.Message ID: > ***@***.***> > -- Thanks Tarun Singh Like Us on Facebook CricketDepotOnline <http://www.facebook.com/CricketDepotOnline> Like Us on Facebook XTreme Cricket USA <http://www.facebook.com/XtremeCricketUSA>

gitea-mirror commented

2026-05-05 06:28:37 -06:00

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@tarunprakashsingh commented on GitHub (Aug 12, 2022):

Same issue here! Pretty much same setup except I'm using a DP cable.

@brian-petersen can you give the link for this cable so i can get the same. avoiding any other issues :)

@tarunprakashsingh commented on GitHub (Aug 12, 2022): > Same issue here! Pretty much same setup except I'm using a DP cable. @brian-petersen can you give the link for this cable so i can get the same. avoiding any other issues :)

gitea-mirror commented

2026-05-05 06:28:39 -06:00

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@waydabber commented on GitHub (Aug 26, 2022):

DDC control through the built-in HDMI pro does not work. Brightness control seemingly works since by default a combined software dimming and DDC control is applied (probably only the bottom 50% of the scale actually changes the brightness in this case). You should use USB-C or DisplayPort to connect the display.

@brian-petersen - DP should work, unless the display does not process DDC volume commands (many displays don't, actually I just happen to have a display like that as well). It's entirely firmware dependent and a hit-or-miss thing.

@waydabber commented on GitHub (Aug 26, 2022): DDC control through the built-in HDMI pro does not work. Brightness control seemingly works since by default a combined software dimming and DDC control is applied (probably only the bottom 50% of the scale actually changes the brightness in this case). You should use USB-C or DisplayPort to connect the display. @brian-petersen - DP should work, unless the display does not process DDC volume commands (many displays don't, actually I just happen to have a display like that as well). It's entirely firmware dependent and a hit-or-miss thing.