Why can't QQ video detect the camera?

Open your own QQ interface, and then find the Settings button in the bottom bar to open the system settings window.

Then find the audio and video options on the left and open the video settings.

In the opened video setting window, set on the right: remove the check in front of the broadband saving mode; If you find it, please select your video device option, click the drop-down menu, first select Disable, and then select your computer's video device after the video is black, so that qq video can be normal.

Option 2: The situation caused by the driver 1. Replace the usb interface and reinstall the video driver (unplug the camera first, reconnect the usb interface, and then try to update the driver as follows), and download the camera driver through official website. If official website provides automatic installation of driver package, double-click direct installation.

2. Enter the device manager to find the camera in the device, right-click to update the driver-install from a list or a specified location-select to include this location in the search-click Browse to find the decompressed driver folder, and then confirm-click Next to complete the installation. 3. Just restart.