[GH-ISSUE #416] cMP 5,1 Triple Monitor [Brightness works on 1 monitor, Audio doesn't adjust] #332

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opened 2026-05-05 05:45:32 -06:00 by gitea-mirror · 3 comments

gitea-mirror commented

2026-05-05 05:45:32 -06:00

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Originally created by @fireheadman on GitHub (Mar 26, 2021).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/416

Checklist

[ x] I have searched for existing issues
[ x] I have looked through the wiki
[ x] I have updated MonitorControl to the latest version

Describe the bug
Couldn't locate a matrix of what hardware is supported.
I have 2010 cMP 5,1. I use x3 ASUS VG248 gaming monitors (all connected by DisplayPort to Sapphire Radeon Vega 64)
Only 1 will dim the brightness.
Audio controls work from apple keyboard, but it doesn't actually adjust (lower/raise) volume the digital channel.

To Reproduce
Steps to reproduce the behavior:

Go to 'click F1/F2 keys for brightness'
Click on 'F10|F11|F12 to control audio'
Scroll down to '....'
See error

Expected behavior
Expected brightness on all 3 monitors to work
Expected audio control to work

Screenshots
If applicable, add screenshots to help explain your problem.

Additional context
Add any other context about the problem here.

Environment Information (please complete the following information):

macOS version: BigSur 11.2.3
MonitorControl version: v2.1.0
Monitor(s): x3 - VG248 ASUS monitors - Display Port

PS: I am willing to test if you have plans to support my profile.
THanks
Ben

Originally created by @fireheadman on GitHub (Mar 26, 2021). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/416 **Checklist**  - [ x] I have searched for existing issues - [ x] I have looked through [the wiki](https://github.com/MonitorControl/MonitorControl/wiki) - [ x] I have updated MonitorControl to the latest version **Describe the bug** Couldn't locate a matrix of what hardware is supported. I have 2010 cMP 5,1. I use x3 ASUS VG248 gaming monitors (all connected by DisplayPort to Sapphire Radeon Vega 64) Only 1 will dim the brightness. Audio controls work from apple keyboard, but it doesn't actually adjust (lower/raise) volume the digital channel. **To Reproduce** Steps to reproduce the behavior: 1. Go to 'click F1/F2 keys for brightness' 2. Click on 'F10|F11|F12 to control audio' 3. Scroll down to '....' 4. See error **Expected behavior** Expected brightness on all 3 monitors to work Expected audio control to work **Screenshots** If applicable, add screenshots to help explain your problem. **Additional context** Add any other context about the problem here. **Environment Information (please complete the following information):** - macOS version: BigSur 11.2.3 - MonitorControl version: v2.1.0 - Monitor(s): x3 - VG248 ASUS monitors - Display Port PS: I am willing to test if you have plans to support my profile. THanks Ben

gitea-mirror

2026-05-05 05:45:32 -06:00

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gitea-mirror commented

2026-05-05 05:45:40 -06:00

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@waydabber commented on GitHub (Aug 20, 2021):

Hi, do you still have this problem? Normally only the active display is being controlled (on older versions the one with active menu bar) and there is a special setting to enable control for all displays. Does this help? Thank you!

@waydabber commented on GitHub (Aug 20, 2021): Hi, do you still have this problem? Normally only the active display is being controlled (on older versions the one with active menu bar) and there is a special setting to enable control for all displays. Does this help? Thank you!

gitea-mirror commented

2026-05-05 05:45:43 -06:00

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@fireheadman commented on GitHub (Aug 20, 2021):

dont know... uninstalled due to slow feedback

@fireheadman commented on GitHub (Aug 20, 2021): dont know... uninstalled due to slow feedback

gitea-mirror commented

2026-05-05 05:45:47 -06:00

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@waydabber commented on GitHub (Aug 20, 2021):