pwcview error when taking snapshots

Matthias Apitz guru at
Thu Dec 3 11:26:26 UTC 2015


I wanted to use the cam of my netbook Acer C720 to take snapshots. The cam itself
works (i.e. gives picture on the screen) with:

$ pwcview -k
Webcam set to: 320x240 (sif) at 5 fps

but when I take snapshots it gives an error:

$ pwcview -h -c 1 -o foo.jpg
Webcam set to: 320x240 (sif) at 5 fps
libv4l2: error turning on stream: Device not configured
libv4l2: error reading: Invalid argument
Error reading from webcam: Invalid argument

This is with 11-CURRENT r285885 amd64 and ports r392920 (around July this

Any ideas?


Matthias Apitz, ✉ guru at, 🌐  ☎ +49-176-38902045

More information about the freebsd-multimedia mailing list