How do I silence AMPDeviceDiscoveryAgent entries in Console?

[allan.nyholm]

Hello good folks on MacRumors,

I have this annoying issue that's listed inside Console app that I can't unsee now.

It's to do with listings such as
AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:253

As I've been writing this comment I have gone to AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:258

What is going on. What are these??? I've been around the web searching and found some older comments relating to iPhones and iPods.
I have an iPhone but no iTunes and I'm using Sonoma on an Mac mini M2

In time - these entries will escalate to beyond 400 and of course more as long as I'm keeping the Mac alive

Mar 31 20:59:17 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:_AMMuxedDeviceDisconnected, mux-device:240
Mar 31 20:59:17 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:240
Mar 31 20:59:44 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:_AMMuxedDeviceDisconnected, mux-device:241
Mar 31 20:59:44 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:241
Mar 31 20:59:48 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:_AMMuxedDeviceDisconnected, mux-device:242
Mar 31 20:59:48 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:242
Mar 31 21:00:14 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:_AMMuxedDeviceDisconnected, mux-device:243
Mar 31 21:00:14 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:243
Mar 31 21:00:44 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:_AMMuxedDeviceDisconnected, mux-device:244
Mar 31 21:00:44 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:244
Mar 31 21:01:17 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:_AMMuxedDeviceDisconnected, mux-device:245
Mar 31 21:01:17 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:245
Mar 31 21:01:17 Allans-computer syslogd[119]: ASL Sender Statistics
Mar 31 21:02:47 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:_AMMuxedDeviceDisconnected, mux-device:246
Mar 31 21:02:47 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:246
Mar 31 21:03:06 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:_AMMuxedDeviceDisconnected, mux-device:247
Mar 31 21:03:06 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:247
Mar 31 21:03:32 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:_AMMuxedDeviceDisconnected, mux-device:248
Mar 31 21:03:32 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:248
Mar 31 21:03:58 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:_AMMuxedDeviceDisconnected, mux-device:249
Mar 31 21:03:58 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:249
Mar 31 21:04:28 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:_AMMuxedDeviceDisconnected, mux-device:250
Mar 31 21:04:28 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:250
Mar 31 21:04:58 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:_AMMuxedDeviceDisconnected, mux-device:251
Mar 31 21:04:58 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:251
Mar 31 21:05:02 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:_AMMuxedDeviceDisconnected, mux-device:252
Mar 31 21:05:02 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:252
Mar 31 21:05:26 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:_AMMuxedDeviceDisconnected, mux-device:253
Mar 31 21:05:26 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:253
Mar 31 21:05:49 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:_AMMuxedDeviceDisconnected, mux-device:254
Mar 31 21:05:49 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:254
Mar 31 21:06:19 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:_AMMuxedDeviceDisconnected, mux-device:255
Mar 31 21:06:19 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:255
Mar 31 21:06:58 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:_AMMuxedDeviceDisconnected, mux-device:256
Mar 31 21:06:58 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:256
Mar 31 21:07:23 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:_AMMuxedDeviceDisconnected, mux-device:257
Mar 31 21:07:23 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:257
Mar 31 21:07:54 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:_AMMuxedDeviceDisconnected, mux-device:258
Mar 31 21:07:54 Allans-computer AMPDeviceDiscoveryAgent[540]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:258

 

[captbrando]

Did you find a solution to this? Doing some other troubleshooting and noticed the same.

 

[allan.nyholm]

Yes I did..

to stop the Agent:

pkill SIGSTOP AMPDeviceDiscoveryAgent

and then to start again should you so wish

sudo launchctl start com.apple.AMPDevicesAgent

From:

Regarding AMPDeviceDiscoveryAgent filling… - Apple Community

discussions.apple.com

WilliamBMW wrote:

MacBook Pro M1 max running 12.5.1

HI, What I've discovered is that AMPDeviceDiscoveryAgent service is related to (in my case) my iPhone. The service starts the first time a phone is connected and then runs looking for a connection. it can be stopped with

pkill SIGSTOP AMPDeviceDiscoveryAgent

However, if at that point you plug your phone in, finder won't see it. Quitting and relaunching Finder will restart the process or use

launchctl start com.apple.AMPDevicesAgent to start it up again.

Perhaps the way it logs will change with Ventura
in the meantime I just stop it with the pkill command so it doesn't unnecessarily fill the system log.

On my MacMini (intel) 12.5.0 it works as one would expect.. The process launches when the phone is connected and stops when the phone is disconnected

 

[Grumpus]

Yes I did..

to stop the Agent:

[CODE][CODE]pkill SIGCONT AMPDeviceDiscoveryAgent

[/CODE][/CODE]

and then to start again should you so wish

sudo launchctl start com.apple.AMPDevicesAgent

That's not correct. To wake the agent up after pausing it with SIGSTOP you should use SIGCONT:

pkill SIGCONT AMPDeviceDiscoveryAgent

If you're never synching phones or ipods, you could use a local launch agent to kill the device discovery agent when you log in.

 

[allan.nyholm]

That's not correct. To wake the agent up after pausing it with SIGSTOP you should use SIGCONT:

pkill SIGCONT AMPDeviceDiscoveryAgent

If you're never synching phones or ipods, you could use a local launch agent to kill the device discovery agent when you log in.

Thank you.. I was also only going with the information I read on Apple Support forum/page

I'll add the information given to my own Notes file