Alias '.1', '.2'means first, second video input device, and so on. Alias '.0' means the default video input device on the host.
The alias can be used as a shortcut in other commands. In my case result was Video Input Devices: 1 The output format is as follows: alias "user friendly name" Get a list of host webcams, or other video input devices: $ VBoxManage list webcams Short steps in nutshell for setup on Mac terminal Link to VirtualBox WebCam Passthrough documentation
But I followed the ideas on VirtualBox page and web camera came right up on Ubuntu 18.04 VM running on MacOS host. This happened to me today and the fix with GitHub and scripts did not work. 1(or its hardware id starting with 0x), but that does not change anything. I also tried manually attaching camera with terminal command VBoxManage controlvm (vmname) attach. I also reinstalled guest Ubuntu but the problem still persists. I reinstalled VirtualBox, but there's no change after that.
In addition to that, there's no Application registered to Privacy settings on OSX that has requested Camera access. ** (cheese:1592): CRITICAL **: 15:09:30.053: cheese_preferences_dialog_setup_resolutions_for_device: assertion 'device != NULL' failedĪlso, the green light on the Macbook indicating that the camera is in use, does not blink at all during the whole process. (omitted: one common thing was assertion: device != NULL failed) I enabled Facetime HD Camera VirtualBox(Menu bar > Devices > Webcams > Facetime HD Camera checkbox on), but when I test the /dev/video0 and /dev/video1 with cheese command on guest blank screen shows up with this error: ** Message: 15:09:30.041: cheese-application.vala:211: Error during camera setup: No device found On this VBox configuration, I installed Ubuntu 18.04 as guest with default configuration(no modification to settings except for Enabling USB Controller) I installed Virtualbox & extension pack 6.0.6 on OSX host(on Mackbook pro with Type-c, 2018 15".
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