Ability to get this working with DisplayLink docks?

[CampAsAChamp]

I have a DisplayLink dock, (which causes my screen to always be shared).

So I can't disable the built in Monterey setting, as if I do else I don't get any notifications on my external monitors.

I tried using this app to not have to use this built in setting and tested with Zoom, but it doesn't seem to be working for me. Still getting notifications.

Is this something on my end? Or anything I can try or test?

[bdkjones]

I haven't really tested on versions of macOS where Muzzle got sherlocked, but my guess is that by flipping on the allow notifications option, you cause macOS to stop calling the private apis that Muzzle uses to detect when screen sharing begins and ends. (Technically it never ends or begins because your screen is always shared.) Muzzle doesn't respond when you share your screen in Zoom because your screen was already shared when you started.

I'd drop the display link thing and just hook up your displays via Thunderbolt.

[CampAsAChamp]

Yea that's what I was assuming as well. Let me try and stopping the DisplayLink app and see if my dock/monitors will still work, cause then I can disable the built in MacOS setting. I'll update this comment with my findings

[CampAsAChamp]

Update

So looks like in order to use my dock I need to have the DisplayLink app running or else the monitors won't connect.

Also since using Sonoma, the app Bartender also requires to always be sharing my screen as well. So I think I'm screwed either way, cause I have two apps that need to constantly be sharing my screen

[bdkjones]

Hmm. There's a lot of overhead involved in sharing the screen, so I'm surprised that Bartender relies on that. That's also a very large attack surface to have constantly exposed. To each their own, but I wouldn't accept an app that requires constant screen sharing.

[orcutt989]

Apple has been supporting less screens on newer models of hardware so DisplayLink is an unfortunate necessity these days if you have more than 2 monitors, or less than 1 on lower models. It would be nice if Muzzle could have some sort of override or exception system.

[bdkjones]

Shouldn’t be needed. “Silence notifications while screen sharing” has been built into macOS for a while now.On Jul 16, 2025, at 08:16, orcutt989 ***@***.***> wrote:orcutt989 left a comment (bdkjones/MuzzleApp#111) Apple has been supporting less screens on newer models of hardware so DisplayLink is an unfortunate necessity these days if you have more than 2 monitors, or less than 1 on lower models. It would be nice if Muzzle could have some sort of override or exception system. —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you commented.Message ID: ***@***.***>

[orcutt989]

I'm not sure if I am understanding correctly. As discussed above - DisplayLink requires a screen to be shared all the time and so a screen is always being shared as far as macOS is concerned. Flipping Allow notifications when mirroring or sharing the display to off then prevents notifications all the time since the screen is being shared all the time. Turning this on obviously allows notifications to come through but then Muzzle doesnt mute them when screen sharing in a meeting, etc.

[bdkjones]

Ah, I see. Muzzle uses Apple's private API to detect screen sharing so it would be prey to the same issue as the system.