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[Failed to open video device /dev/video0: Permission denied] Typically, zmfix is run at startup as root to set permissions so zmc will be able to access the device. It seems its not doing its job for you, but in most distros /dev/videoX are root:video, so adding the user zmc runs on to the video ...

I change my web cam to genius iSlim 1322AF

Set Device Format Secam
Capture Palette YUYV
Capture Width (pixels) 320
Capture Height (pixels) 240

In another resolution is not working.

Running Zoneminder 1.24.2 no image in web Feb 19 01:00:29 valhalla zmdc[5409]: INF [Starting pending process, zmc -d /dev/video0] Feb 19 01:00:29 valhalla zmdc[5409]: INF ['zmc -d /dev/video0' starting at 10/02/19 01:00:29, pid = 5464] Feb 19 01:00:29 valhalla zmdc[5464]: INF ['zmc -d /dev/video0 ...