Hi Wolffire,
Please excuse my use of English I have been following this thread using google translate.
I have this extact same issue.
My grabber only works if I run hyperion-v4l2 --video-standard NO-CHANGE --screenshot --pixel-format YUYV
Ater that it works until I reboot .
I'm trying to work out how to default to 'index 1'
Did you find a way to ake this work after a reboot?
Driver Info (not using libv4l2):
Driver name: uvcvideo
Card type: AV TO USB2.0
Bus info: usb-3f980000.usb-1.1.3
Driver version: 4.19.55
Capabilities: 0x84A00001
Video capture
Streaming
Extended Pix format
Device capabilities
Device Caps: 0x04A00000
Streaming
Extended Pix format
Priority: 2
osmc @ osmc-ambilight: ~ $ v4l2-ctl --list-formats-ext
ioctl: VIDIOC_ENUM_FMT
Index: 0
Type: Video capture
Pixel format: 'MJPG' (compressed)
Name: Motion JPEG
Size: Discrete 480x320
Interval: Discrete 0.033s (30,000 fps)
Size: Discrete 640x480
Interval: Discrete 0.020s (50,000 fps)
Interval: Discrete 0.033s (30,000 fps)
Interval: Discrete 0.050s (20,000 fps)
Interval: Discrete 0.100s (10,000 fps)
Size: Discrete 720x480
Interval: Discrete 0.020s (50,000 fps)
Interval: Discrete 0.033s (30,000 fps)
Interval: Discrete 0.050s (20,000 fps)
Interval: Discrete 0.100s (10,000 fps)
Index: 1
Type: Video capture
Pixel format: 'YUYV'
Name: YUYV 4: 2: 2
Size: Discrete 480x320
Interval: Discrete 0.033s (30,000 fps)