Virtual Cam broken for Teams Version 1.3.00.28778 Mac. codesign --remove-signature does not work ...

Schrader, Erik 31

After updating my MS Teams.App on my 10.15.7 Mac, there is no way to virtual cam showing up under preferences ... I did the "codesign --remove-signature" procedure and it wont help.

Anyone out there with the same problem?

Greetings
Erik

chuck 6 Reputation points

2020-11-03T01:15:03.98+00:00

Noticed it too – also through a recent Teams update (desktop app). All virtual cameras are gone... even though apps like Zoom/Chrome still allow them.

Skype as well – no more virtual cameras allowed.

Not great, seeing that some of us use Teams while teaching, and rely on using tools like OBS to switch cameras in class.

It is disappointing that the codesign routine doesn't seem to work anymore.

Have you tried resetting XCode CLT? I tried it to no avail:
https://support.ecamm.com/en/articles/4092314-updating-xcode-s-command-line-tools-to-fix-codesign-issue

Falling back to the web app for now...

Accepted answer

JimmyYang-MSFT 49,191 Reputation points Microsoft Vendor

2020-11-03T06:24:53.35+00:00

Hi @Schrader, Erik ,

Do you mean your Teams client cannot recognize the external cermara device?

I found a forum provide a detailed solution about it. The version is the same as yours. You can try to follow its suggestions to see if it works for you.

https://answers.microsoft.com/en-us/msteams/forum/msteams_tfb-msteams_tfmac/microsoft-teams-mac-os-client-is-not-recognizing/d9e863be-d9a4-4d03-a4b8-1b5c7df58828

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1 person found this answer helpful.
Schrader, Erik 31 Reputation points

2020-11-03T06:30:17.403+00:00

Thank you. It is now working!

chuck 6 Reputation points

2020-11-04T02:15:25.86+00:00

I can confirm this works too – looks like codesigning needs to be removed across all of the Teams helper applications now. Thanks @JimmyYang-MSFT
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1 additional answer

Schrader, Erik 31 Reputation points

2020-11-03T06:09:31.947+00:00

I have also tried this ...
first updated XCode, then deleted the teams-cache, then disabled code sign for teams.app ... unfortunately all without success. Still without virtual cameras in teams.app ...
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Stuart 6 Reputation points

2020-11-09T15:08:09.43+00:00

@Schrader, Erik I also had this issue in previous updates and the "usual" fix of removing the signature did not work this time, however, I found MS have added a few more apps and running the complete list below resolved the issue for me - good luck!

sudo codesign --remove-signature "/Applications/Microsoft Teams.app"

sudo codesign --remove-signature "/Applications/Microsoft Teams.app/Contents/Frameworks/Microsoft Teams Helper.app"

sudo codesign --remove-signature "/Applications/Microsoft Teams.app/Contents/Frameworks/Microsoft Teams Helper (GPU).app"

sudo codesign --remove-signature "/Applications/Microsoft Teams.app/Contents/Frameworks/Microsoft Teams Helper (Plugin).app"

sudo codesign --remove-signature "/Applications/Microsoft Teams.app/Contents/Frameworks/Microsoft Teams Helper (Renderer).app"

Gabriele Lo Surdo 6 Reputation points

2021-01-12T09:16:54.033+00:00

@Stuart That worked like a charm: thank you!

I guess you could also run these commands as a single command:

sudo codesign --remove-signature "/Applications/Microsoft Teams.app"; sudo codesign --remove-signature "/Applications/Microsoft Teams.app/Contents/Frameworks/Microsoft Teams Helper.app"; sudo codesign --remove-signature "/Applications/Microsoft Teams.app/Contents/Frameworks/Microsoft Teams Helper (GPU).app"; sudo codesign --remove-signature "/Applications/Microsoft Teams.app/Contents/Frameworks/Microsoft Teams Helper (Plugin).app"; sudo codesign --remove-signature "/Applications/Microsoft Teams.app/Contents/Frameworks/Microsoft Teams Helper (Renderer).app"

Just to make it simpler and quicker.
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