Home » Forum » Trisquel users
Submitted by catfishes on Sat, 01/17/2015 - 22:27

No picture in guvcview

8 replies [Last post]
Sat, 01/17/2015 - 22:27
catfishes
catfishes

I am a member!

Offline
Joined: 07/24/2013

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?

Top
  • +1
    0
    -1
    Please use the rating system to mark posts that go against the Community Guidelines
Wed, 01/21/2015 - 12:33
#1
catfishes
catfishes

I am a member!

Offline
Joined: 07/24/2013

Could anyone confirm or deny whether guvcview is working for them? Thanks

Top
  • +1
    0
    -1
    Please use the rating system to mark posts that go against the Community Guidelines
Wed, 01/21/2015 - 21:06
#2
Bertel
Bertel

I am a member!

Offline
Joined: 08/30/2010

Installed on a older notebook (32 bits, Intel(R) Pentium(R) M processor 1.73GHz, Mobility Radeon X600 SE): gucview 1.7.1-1ubuntu1 (+libwebcam0,uvsdynctr,uvcdynctrl-data). Using a Logitech webcam and it works for me.

Top
  • +1
    0
    -1
    Please use the rating system to mark posts that go against the Community Guidelines
Thu, 01/22/2015 - 15:13
#3
catfishes
catfishes

I am a member!

Offline
Joined: 07/24/2013

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.

Top
  • +1
    0
    -1
    Please use the rating system to mark posts that go against the Community Guidelines
Thu, 01/22/2015 - 23:54
#4
Bertel
Bertel

I am a member!

Offline
Joined: 08/30/2010

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.

Top
  • +1
    0
    -1
    Please use the rating system to mark posts that go against the Community Guidelines
Fri, 01/23/2015 - 01:41
#5
catfishes
catfishes

I am a member!

Offline
Joined: 07/24/2013

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

Top
  • +1
    0
    -1
    Please use the rating system to mark posts that go against the Community Guidelines
Fri, 01/23/2015 - 02:00
#6
Trisquelian
Trisquelian
Offline
Joined: 01/23/2015

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.

Top
  • +1
    0
    -1
    Please use the rating system to mark posts that go against the Community Guidelines
Fri, 01/23/2015 - 04:42
#7
catfishes
catfishes

I am a member!

Offline
Joined: 07/24/2013

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

Top
  • +1
    0
    -1
    Please use the rating system to mark posts that go against the Community Guidelines
Fri, 01/23/2015 - 21:08
#8
catfishes
catfishes

I am a member!

Offline
Joined: 07/24/2013

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

Top
  • +1
    0
    -1
    Please use the rating system to mark posts that go against the Community Guidelines