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 is not working on my Iiyama G-Master GB3466WQSU monitor.

Expected behavior

I would like to control sound volume in MonitorControl App.

Anything else?

Does the app have some logs/raport? Can I send it to you ?

Environment Information (please complete the following information)

- macOS version: 12.1
- Mac model: Mini M1 8GB
- MonitorControl version: 4.0.2 Build 6965
- Monitor(s): Iiyama G-Master GB3466WSQU
- Monitor Cable(s)/Connection(s): USB-C Thunderbolt to DisplayPort
- Apple Silicon/M1 (yes or no): yes