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On 12/21/14 22:08, Alexander Kapshuk wrote: |
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> grep '^CONFIG.*V4L' /usr/src/linux/.config |
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> CONFIG_VIDEO_V4L2=m |
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> CONFIG_V4L_PLATFORM_DRIVERS=y |
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> CONFIG_MEDIA_SUPPORT=m |
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> CONFIG_USB_VIDEO_CLASS=m |
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> CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV=y |
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> CONFIG_USB_GSPCA=m |
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> CONFIG_MEDIA_PCI_SUPPORT=y |
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> grep -s ^LD_PRELOAD .* |
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> .bash_profile:LD_PRELOAD=/usr/lib/libv4l/v4l2convert.so |
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> Also, you may want to try plugging you webcam into a USB2 port, if |
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> available, instead of a USB3 one, as suggested here, |
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> [6]http://linux-kernel.2935.n7.nabble.com/3-15-8-USB-issue-with-uvc-cam |
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> -td920378.html. |
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> Hope this helps. |
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|
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When I try to run: guvcview |
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|
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I get: |
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guvcview 1.6.1 |
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ALSA lib /var/tmp/portage/media-libs/alsa-lib-1.0.28/work/alsa-lib-1.0.28/src/pcm/pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear |
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ALSA lib /var/tmp/portage/media-libs/alsa-lib-1.0.28/work/alsa-lib-1.0.28/src/pcm/pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe |
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ALSA lib /var/tmp/portage/media-libs/alsa-lib-1.0.28/work/alsa-lib-1.0.28/src/pcm/pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side |
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ALSA lib /var/tmp/portage/media-libs/alsa-lib-1.0.28/work/alsa-lib-1.0.28/src/pcm/pcm_route.c:947:(find_matching_chmap) Found no matching channel map |
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video device: /dev/video0 |
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ERROR opening V4L2 interface for /dev/video0 |
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unable to detect video devices on your system (0) |
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ERROR opening V4L interface: Permission denied |
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Init video returned -1 |
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VIDIOC_REQBUFS - Failed to delete buffers: Inappropriate ioctl for device (errno 25) |
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cleaned allocations - 100% |
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Closing portaudio ...OK |
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|
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-- |
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Joseph |
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