EOS Webcam Utility not working under Mac OS Sonoma 14.5?

[Stefan1]

Dear community,

My Mac upgraded to "Mac OS Sonoma 14.5". "EOS Utility 3.app" seems to connect fine, and the "Remote Shooting" / "live view shoot" feature seems to work just fine. But the rest doesn't: "EOS Webcam Utility Pro", Zoom, Teams etc. don't seem to connect and only show the "EOS Webcam Utility" home screen, instead of the usual camera stream.

So basically I can no more use the camera as a high-end webcam for which I am using the camera to record videos as I speak at online conferences. 

Any ideas what is happening? Is this indeed linked to the Mac OS Sonoma 14.5 upgrade? Any ideas for troubleshooting?

[chrisantonio]

I had to Register an account here just to say THANK YOU!!!! I have spent hours looking for answers through every forum.... yet the solution was so simple. Worked on my EOS Rebel SL2.

[Kev4]

I can't believe support at Canon is not responding to this. IOGEAR doesn't know what is going on, Apple tells me to update the Canon driver. But Canon is silent. Really crummy support here. 

[jrhoffman75]

This is a user supported site. If no one has experience with your product or software you may not get a response. 

You should register your product at the support site and call Canon Support. 

[dd_chroma]

I was able to get it working on Sonoma 14.6.1 for a brief moment - like about 10 minutes. 

I then updated EOS Utility to 3.18.5.13. But then the EOS Webcam Utility stopped working.

Have tried various things over the past hour but have not been able to make it work again.

A clue I could find was in Console by search for "eos". Unclear what it reveals but *may* suggest that there are possible exceptions halting proper function. Does anybody else see anything similar?

default 22:10:21.618388+1000 com.canon.cusa.eoswebcam.cameraExtension UNIX error exception: 3

default 22:10:22.624265+1000 EOSWebcamService CMIO_DAL_System.cpp:85:Get System unsuspended

default 22:10:22.624433+1000 com.canon.cusa.eoswebcam.cameraExtension CMIOExtensionProvider.m:3163:-[CMIOExtensionProvider setStreamPropertyValuesForClientID:streamID:propertyValues:reply:] <CMIOExtensionProvider>, <private>, propertyValues {

    "4cc_pids_glob_0000" = "";

}

The UNIX error exception: 3 reveals

com.canon.cusa.eoswebcam.cameraExtension (Security)

Subsystem: com.apple.securityd Category: security_exception

CMIO is related to Core Media IO

Now considering how I do a proper clean uninstall of both WebCam and EOS Utility to see if I can start from a clean state. 

[dessita]

I had this problem in May 2024 when Sonoma came on and I fixed it thanks to this blog post https://appleinsider.com/articles/23/10/25/what-to-do-if-your-webcam-doesnt-work-in-macos-sonoma 
I did it and it worked again.

Now in Aug 2024 my webcam stopped working again.
I have an 80D, with the latest firmware 1.0.3
I use it on a Macbook PRO M2 Sonoma
I have the latest version of the EOS Utility software updated here.

I use this camera with a USB cable (not HDMI) and it worked beautifully on Zoom, Streamyard etc.

Now in Aug2024 out of nowhere what is happening is:
- the camera is rightfully recognised when I open EOS Utility.
- I quit it so it doesn't clash with the other app such as Zoom etc
- when I open Zoom etc it gives me now permanently this screen (which is different from the screen I used to have in may 2024 or whenever it wouldn't recognise the camera due to a bad cable or such, which is this screen with a red x on a cable, meaning I didn't find a camera connected to the mac). So it's worse because now even if the cable isn't even connected, the screen remains the same, and the video just doesn't load or start

PLEASE HELP 

[provisa]

Solution to Canon EOS Webcam Utility not displaying the screen or working! It keeps displaying:

Canon latest web cam driver abnormal solution

The process is as follows:
1. Uninstall C 1.3.16. Uninstalling is difficult, please try various methods.

EOS Webcam Utility 1.3.16 [Windows]
Last updated: 08-Jun-2024
Release number: DLAP000408

2. If Eos Utility is installed, disable auto-start.

EOS Utility 3.18.40 for WindowsLast
updated: 10-Sep-2024Release
number: 0200721105

3. Find and download the old version of EOS Webcam Utility, which is version 1.1 (the latest version on the official website is: EOSWebcamUtility-WIN1.3.16.zip)

Old version download link: https://downloads.canon.com/webcam/EOSWebcamUtility-WIN1.1.zip

4. With the camera cable plugged in and the camera not turned off, install the software (a confirmation window for installing the video driver will pop up) and restart.

You can use the Canon live broadcast software normally, and there will be no missing picture!

Personally tested!!!

This is the case for both win11 and win10 systems, so the fundamental problem that Canon's live broadcast software cannot be used is Canon's software driver problem, which is caused by the failure to adapt to win10 and 11 or some updates to the win system.