Skip to content

"invalid tuner 0" with webcam

when trying to use vlc to to play from my webcams, I get the following output:

[0xb740534c] main input debug: thread started
[0xb740534c] main input debug: using timeshift granularity of 50 MiB
[0xb740534c] main input debug: using timeshift path '/tmp'
[0xb740534c] main input debug: `v4l2:///dev/video1' gives access `v4l2' demux `' path `/dev/video1'
[0xb740534c] main input debug: creating demux: access='v4l2' demux='' path='/dev/video1'
[0xb65c8874] main demux debug: looking for access_demux module: 1 candidate
[0xb65c8874] v4l2 demux debug: Trying direct kernel v4l2
[0xb65c8874] v4l2 demux debug: opening device '/dev/video1'
[0xb65c8874] v4l2 demux debug: V4L2 device: USB Camera (041e:401f) using driver: zc3xx (version: 2.12.0) on usb-0000:00:1d.3-2
[0xb65c8874] v4l2 demux debug: the device has the capabilities: (X) Video Capture, ( ) Audio, ( ) Tuner, ( ) Radio
[0xb65c8874] v4l2 demux debug: supported I/O methods are: (X) Read/Write, (X) Streaming, ( ) Asynchronous
[0xb65c8874] v4l2 demux debug: video input 0 (zc3xx) has type: External analog input *
[0xb65c8874] v4l2 demux debug: device supports chroma jpeg [JPEG, JPEG]
[0xb65c8874] v4l2 demux debug:     device supports size 320x240
[0xb65c8874] v4l2 demux debug:     device supports size 640x480
[0xb65c8874] v4l2 demux debug: '/dev/video1' is a video device
[0xb65c8874] v4l2 demux error: invalid tuner 0.
[0xb65c8874] v4l2 demux debug: Trying libv4l2 wrapper
[0xb65c8874] v4l2 demux debug: opening device '/dev/video1'
[0xb65c8874] v4l2 demux debug: V4L2 device: USB Camera (041e:401f) using driver: zc3xx (version: 2.12.0) on usb-0000:00:1d.3-2
[0xb65c8874] v4l2 demux debug: the device has the capabilities: (X) Video Capture, ( ) Audio, ( ) Tuner, ( ) Radio
[0xb65c8874] v4l2 demux debug: supported I/O methods are: (X) Read/Write, (X) Streaming, ( ) Asynchronous
[0xb65c8874] v4l2 demux debug: video input 0 (zc3xx) has type: External analog input *
[0xb65c8874] v4l2 demux debug: device supports chroma jpeg [JPEG, JPEG]
[0xb65c8874] v4l2 demux debug:     device supports size 320x240
[0xb65c8874] v4l2 demux debug:     device supports size 640x480
[0xb65c8874] v4l2 demux debug: device supports chroma RV24 [RGB3, RGB3]
[0xb65c8874] v4l2 demux debug:     device supports size 320x240
[0xb65c8874] v4l2 demux debug:     device supports size 640x480
[0xb65c8874] v4l2 demux debug: device supports chroma RV24 [BGR3, BGR3]
[0xb65c8874] v4l2 demux debug:     device supports size 320x240
[0xb65c8874] v4l2 demux debug:     device supports size 640x480
[0xb65c8874] v4l2 demux debug: device supports chroma I420 [YU12, YU12]
[0xb65c8874] v4l2 demux debug:     device supports size 320x240
[0xb65c8874] v4l2 demux debug:     device supports size 640x480
[0xb65c8874] v4l2 demux debug: device supports chroma YV12 [YV12, YV12]
[0xb65c8874] v4l2 demux debug:     device supports size 320x240
[0xb65c8874] v4l2 demux debug:     device supports size 640x480
[0xb65c8874] v4l2 demux debug: '/dev/video1' is a video device
[0xb65c8874] v4l2 demux error: invalid tuner 0.
[0xb65c8874] main demux debug: no access_demux module matching "v4l2" could be loaded
[0xb65c8874] main demux debug: TIMER module_need() : 17.834 ms - Total 17.834 ms / 1 intvls (Avg 17.834 ms)
[0xb740534c] main input debug: creating access 'v4l2' path='/dev/video1'
[0xb65c8874] main access debug: looking for access module: 1 candidate
[0xb65c8874] v4l2 access debug: Trying direct kernel v4l2
[0xb65c8874] v4l2 access debug: opening device '/dev/video1'
[0xb65c8874] v4l2 access debug: V4L2 device: USB Camera (041e:401f) using driver: zc3xx (version: 2.12.0) on usb-0000:00:1d.3-2
[0xb65c8874] v4l2 access debug: the device has the capabilities: (X) Video Capture, ( ) Audio, ( ) Tuner, ( ) Radio
[0xb65c8874] v4l2 access debug: supported I/O methods are: (X) Read/Write, (X) Streaming, ( ) Asynchronous
[0xb65c8874] v4l2 access debug: video input 0 (zc3xx) has type: External analog input *
[0xb65c8874] v4l2 access debug: device supports chroma jpeg [JPEG, JPEG]
[0xb65c8874] v4l2 access debug:     device supports size 320x240
[0xb65c8874] v4l2 access debug:     device supports size 640x480
[0xb65c8874] v4l2 access debug: '/dev/video1' is a video device
[0xb65c8874] v4l2 access error: invalid tuner 0.
[0xb65c8874] v4l2 access debug: Trying libv4l2 wrapper
[0xb65c8874] v4l2 access debug: opening device '/dev/video1'
[0xb65c8874] v4l2 access debug: V4L2 device: USB Camera (041e:401f) using driver: zc3xx (version: 2.12.0) on usb-0000:00:1d.3-2
[0xb65c8874] v4l2 access debug: the device has the capabilities: (X) Video Capture, ( ) Audio, ( ) Tuner, ( ) Radio
[0xb65c8874] v4l2 access debug: supported I/O methods are: (X) Read/Write, (X) Streaming, ( ) Asynchronous
[0xb65c8874] v4l2 access debug: video input 0 (zc3xx) has type: External analog input *
[0xb65c8874] v4l2 access debug: device supports chroma jpeg [JPEG, JPEG]
[0xb65c8874] v4l2 access debug:     device supports size 320x240
[0xb65c8874] v4l2 access debug:     device supports size 640x480
[0xb65c8874] v4l2 access debug: device supports chroma RV24 [RGB3, RGB3]
[0xb65c8874] v4l2 access debug:     device supports size 320x240
[0xb65c8874] v4l2 access debug:     device supports size 640x480
[0xb65c8874] v4l2 access debug: device supports chroma RV24 [BGR3, BGR3]
[0xb65c8874] v4l2 access debug:     device supports size 320x240
[0xb65c8874] v4l2 access debug:     device supports size 640x480
[0xb65c8874] v4l2 access debug: device supports chroma I420 [YU12, YU12]
[0xb65c8874] v4l2 access debug:     device supports size 320x240
[0xb65c8874] v4l2 access debug:     device supports size 640x480
[0xb65c8874] v4l2 access debug: device supports chroma YV12 [YV12, YV12]
[0xb65c8874] v4l2 access debug:     device supports size 320x240
[0xb65c8874] v4l2 access debug:     device supports size 640x480
[0xb65c8874] v4l2 access debug: '/dev/video1' is a video device
[0xb65c8874] v4l2 access error: invalid tuner 0.
[0xb65c8874] main access debug: no access module matching "v4l2" could be loaded
[0xb65c8874] main access debug: TIMER module_need() : 22.078 ms - Total 22.078 ms / 1 intvls (Avg 22.078 ms)
[0xb740534c] main input error: open of `v4l2:///dev/video1' failed: (null)
[0x81a506c] main playlist debug: finished input

The problem has also been found by someone else, who found a quick code fix. See the posting in the forums at this link: http://forum.videolan.org/viewtopic.php?f=13&t=90066&p=300624#p300602 for specifics.

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information