No picture in guvcview
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Guvcview worked brilliantly in Trisquel 6. Cheese works and the video in Jitsi is great in Trisquel 7 but I have no picture in Guvcview. Is anyone else having this problem?
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Could anyone confirm or deny whether guvcview is working for them? Thanks
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Thanks for the reply. I have all those packages and I've messed with every setting I can find. I'm using 64bit but if I know someone has it working I guess it must be at my end. Thanks again.
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Did you get one or more error messages when starting guvcview in a terminal?
Out of curiosity, I will install it on a 64bit machine this weekend to see what happens.
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ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
bt_audio_service_open: connect() failed: Connection refused (111)
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
If I change the video output to MJPG I get
Ignoring empty buffer ...
Ignoring empty buffer ...
Ignoring empty buffer ... forever and ever
It might help if you include the hardware that you are trying this on. I recall getting a very similar error on an Asus EEE 1001P for the default configuration on guvcview, but unfortunately I did not have time to chase this issue at the time and I not longer have that laptop ( I was able to view camera output in vlc and that was the only thing I tried ).
I am currently using guvcview on a Samsung-NP530U4B and it's working very well on the default configuration.
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It's on Lenovo g580 i3 with Creative Labs Live Cam
Curiously forgot about vlc but on T6 it was terrible.
Just tried VLC now and with 100ms caching it seems almost perfect.
;) Thanks
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Well it's took me nearly a week (my internet searching leaves a lot to be desired) but I finally found the developers answer.
Hi,
the current ubuntu guvcview version is broken with kernels >= 3.16, you need the latest version 2.0.1
You can get it from the sourceforge download (Files) section or from one of my ppa's:
stable: https://launchpad.net/~pj-assis/+archive/ubuntu/ppa
testing (latest git): https://launchpad.net/~pj-assis/+archive/ubuntu/testing
Regards,
Paulo
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