Arch Linux

callmejoe

Member

Registered: 2019-03-06

Posts: 84

[solved] webcam not working

[edit] not sure what i did, but the camera is now recognized in vlc and Qt V4L2. oh well

I have a Logitech HD Webcam C615 which should be UVC compliant. After connecting,  this is the output from dmesg  | tail. not being initialized

callmejoe@ArchMan ~ $ dmesg | tail
[  177.541599] uvcvideo 2-13:1.2: Entity type for entity Extension 5 was not initialized!
[  177.541605] uvcvideo 2-13:1.2: Entity type for entity Processing 2 was not initialized!
[  177.541609] uvcvideo 2-13:1.2: Entity type for entity Camera 1 was not initialized!
[  177.541612] uvcvideo 2-13:1.2: Entity type for entity Extension 6 was not initialized!
[  177.541616] uvcvideo 2-13:1.2: Entity type for entity Extension 7 was not initialized!
[  177.541619] uvcvideo 2-13:1.2: Entity type for entity Extension 8 was not initialized!
[  177.541895] input: HD Webcam C615 as /devices/pci0000:00/0000:00:14.0/usb2/2-13/2-13:1.2/input/input41
[  915.917124] audit: type=1130 audit(1586553947.744:223): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-tmpfiles-clean comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[  915.917126] audit: type=1131 audit(1586553947.744:224): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-tmpfiles-clean comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[ 1737.965047] usb 2-13: USB disconnect, device number 8

uvcvideo module is loaded

callmejoe@ArchMan ~ $ lsmod | grep uvcvideo
uvcvideo              114688  0
videobuf2_vmalloc      20480  1 uvcvideo
videobuf2_v4l2         28672  1 uvcvideo
videobuf2_common       57344  2 videobuf2_v4l2,uvcvideo
videodev              270336  3 videobuf2_v4l2,uvcvideo,videobuf2_common
mc                     61440  5 videodev,snd_usb_audio,videobuf2_v4l2,uvcvideo,videobuf2_common

user name is in the video group.

I've instlled v4l2-utils.

callmejoe@ArchMan ~ $ v4l2-ctl --list-devices
HD Webcam C615 (usb-0000:00:14.0-10.3):
	/dev/video0
	/dev/video1
	/dev/media0

no luck with xawtv

callmejoe@ArchMan ~ $  xawtv -c /dev/video0
This is xawtv-3.106, running on Linux/x86_64 (5.6.3-arch1-1)
xinerama 0: 1920x1080+0+0
xinerama 1: 1920x1080+1920+0
Alsa devices: cap: hw:2,0 (/dev/video0), out: default
Warning: Unable to load any usable ISO8859 font
Warning: Missing charsets in String to FontSet conversion
Error: Aborting: no font found

not sure where to go from here.

Last edited by callmejoe (2020-04-11 01:35:21)