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I've got a new Arch installation, and I'm having trouble getting my Logitech Webcam C910 (046d:0821) to be recognized. It shows up in lsusb's output, and the microphone built in to the webcam works fine (it shows up in gnome's sound properties, and the levels respond when I tap on the mic). dmesg doesn't say much when I plug it in:
[ 1140.968312] usb 4-1.7: new high-speed USB device number 3 using ehci-pci
This is a UVC webcam, so I tried a modprobe uvcvideo, but it fails:
$ sudo modprobe uvcvideo
modprobe: ERROR: ctx=0xfb1010 path=/lib/modules/3.12.6-1-ARCH/kernel/drivers/media/v4l2-core/videobuf2-vmalloc.ko.gz error=No such file or directory
modprobe: ERROR: ctx=0xfb1010 path=/lib/modules/3.12.6-1-ARCH/kernel/drivers/media/v4l2-core/videobuf2-vmalloc.ko.gz error=No such file or directory
modprobe: ERROR: could not insert 'uvcvideo': Unknown symbol in module, or unknown parameter (see dmesg)
dmesg doesn't show anything after this, however. I know the C910 worked fine in my old Linux distribution, so the newer kernel that came with Arch should support it, too. Any ideas?
Edit: /lib/modules/3.12.6-1-ARCH/kernel/drivers/media is empty---so the V4L2 modules are not installed on this machine. Are they in a separate Arch package---I would have thought they'd be part of the linux kernel package.
Edit2: Somehow, my kernel package didn't populate the /lib/modules tree completely. Reinstalling the linux package fixed it.
Last edited by johnp636 (2013-12-30 21:26:21)
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