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#1 2009-03-10 11:51:41

mediumcool
Member
Registered: 2009-03-10
Posts: 8

Webcam has gone green in Skype Cheese and Ekiga

Hi all,

I have a creative  vf0330 webcam which previously worked fine with the gspca_ov519 driver in arch.  It has been a while since I have used it but now it's output in Skype Cheese and Ekiga have all gone green (cheese will actually save the move which will playback fine in mplayer or vlc).

The most prominant thing that has changed on my system since it worked would be the latest version of xorg from testing.

I have tried the following:

http://wiki.archlinux.org/index.php/Web … our_webcam

with no luck.

I have also tried the   ov51x-jpeg driver (blacklisting gspca_ov519)  however it crashes skype with and without v4l1 compatibility, cheese and ekiga do not pick it up.

Have tried xorg without compositing which also had no effect.

If anyone has any further ideas I would be truly grateful.

Thanks,
Sean

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#2 2009-03-10 12:45:40

brazzmonkey
Member
From: between keyboard and chair
Registered: 2006-03-16
Posts: 818

Re: Webcam has gone green in Skype Cheese and Ekiga

I have a similar issue, with different hardware though:
http://bbs.archlinux.org/viewtopic.php? … 57#p496957


what goes up must come down

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#3 2009-03-10 14:36:21

mediumcool
Member
Registered: 2009-03-10
Posts: 8

Re: Webcam has gone green in Skype Cheese and Ekiga

Hi brazzmonkey, your thread was one of the many I studied in detail before I posted.  Seems we are in avery similar boat.

I do get output in VLC if that helps anyone with suggestions.

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#4 2009-03-10 14:48:33

R00KIE
Forum Fellow
From: Between a computer and a chair
Registered: 2008-09-14
Posts: 4,734

Re: Webcam has gone green in Skype Cheese and Ekiga

Give guvcview a try and check which combinations of resolution/framerate work. After you find that out we can go from there.
Also if it was working and now it doesn't then an update of the driver is to blame, there is another thread with someone that has a similar problem http://bbs.archlinux.org/viewtopic.php?id=65106


R00KIE
Tm90aGluZyB0byBzZWUgaGVyZSwgbW92ZSBhbG9uZy4K

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#5 2009-03-10 15:36:49

gpan
Member
From: Athens, Greece
Registered: 2008-11-14
Posts: 32

Re: Webcam has gone green in Skype Cheese and Ekiga

I have the same problem guys (green screen). Apart from that I have pauses when an audio call is in progress.

Last edited by gpan (2009-03-10 15:38:11)

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#6 2009-03-10 15:55:12

mediumcool
Member
Registered: 2009-03-10
Posts: 8

Re: Webcam has gone green in Skype Cheese and Ekiga

Hi Rookie,

Thanks for the tip.  Tried luvcview as it was quicker to install - hope it gives the same info.

tried /usr/local/bin/luvcview --fps=100--size=640x480 --verbose and the output was fine. 

Here is the output from luvcview:

luvcview version 0.2.1
Video driver: x11
A window manager is available
video /dev/video0

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#7 2009-03-10 16:23:07

R00KIE
Forum Fellow
From: Between a computer and a chair
Registered: 2008-09-14
Posts: 4,734

Re: Webcam has gone green in Skype Cheese and Ekiga

Do a luvcview -L and check which resolutions/fps are supported.
Then just go through all of them to check which ones work and which ones don't.

Use: luvcview -i fps -s widthxheight -f yuv. Don't select frame rates that your webcam doesn't support as it will work but you will not know which fps was selected (maybe the closest supported one). When you can give guvcview a try, you will see it can be handy to make a short movie or take screenshots.


R00KIE
Tm90aGluZyB0byBzZWUgaGVyZSwgbW92ZSBhbG9uZy4K

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#8 2009-03-10 16:48:47

mediumcool
Member
Registered: 2009-03-10
Posts: 8

Re: Webcam has gone green in Skype Cheese and Ekiga

I did the luvcview -L and got the following:

[sean@myhost ~]$ /usr/local/bin/luvcview -L
luvcview version 0.2.1
Video driver: x11
A window manager is available
video /dev/video0
{ pixelformat = 'JPEG', description = 'JPEG' }

I installed guvcview as suggested and got the following output:

guvcview 1.0.2
video device: /dev/video0
/dev/video0 - device 1
Init. Creative WebCam Vista (location: 0000:00:1d.1)
{ pixelformat = 'JPEG', description = 'JPEG' }
{ ?GSPCA? : width = 320, height = 240 }
fmtind:1 fsizeind: 1
checking format: 1195724874
vid:1d6b
pid:0001
driver:ov519
write /home/sean/.guvcviewrc OK
free controls
cleaned allocations - 100%
Terminated.

The fps listed from within guvcview was 1/25 FPS

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#9 2009-03-10 19:55:47

R00KIE
Forum Fellow
From: Between a computer and a chair
Registered: 2008-09-14
Posts: 4,734

Re: Webcam has gone green in Skype Cheese and Ekiga

luvcview doesn't seem to be able to get anything out of your webcam, you should get something similar to this

]$ luvcview -L
luvcview version 0.2.1 
Video driver: x11
A window manager is available
video /dev/video0 
/dev/video0 does not support read i/o
{ pixelformat = 'YUYV', description = 'YUV 4:2:2 (YUYV)' }
{ discrete: width = 640, height = 480 }
    Time interval between frame: 1/30, 1/20, 1/15, 1/10, 1/5, 
{ discrete: width = 352, height = 288 }
    Time interval between frame: 1/30, 1/20, 1/15, 1/10, 1/5, 
{ discrete: width = 320, height = 240 }
    Time interval between frame: 1/30, 1/20, 1/15, 1/10, 1/5, 
{ discrete: width = 176, height = 144 }
    Time interval between frame: 1/30, 1/20, 1/15, 1/10, 1/5, 
{ discrete: width = 160, height = 120 }
    Time interval between frame: 1/30, 1/20, 1/15, 1/10, 1/5,

and guvcview gives me

$ guvcview 
guvcview 1.0.2
Xlib:  extension "Generic Event Extension" missing on display ":0.0".
Xlib:  extension "Generic Event Extension" missing on display ":0.0".
Xlib:  extension "Generic Event Extension" missing on display ":0.0".
Xlib:  extension "Generic Event Extension" missing on display ":0.0".
Xlib:  extension "Generic Event Extension" missing on display ":0.0".
Xlib:  extension "Generic Event Extension" missing on display ":0.0".
video device: /dev/video0 
/dev/video0 - device 1
Init. CNF7050 (location: 0000:00:13.5)
{ pixelformat = 'YUYV', description = 'YUV 4:2:2 (YUYV)' }
{ discrete: width = 640, height = 480 }
    Time interval between frame: 1/30, 1/20, 1/15, 1/10, 1/5, 
{ discrete: width = 352, height = 288 }
    Time interval between frame: 1/30, 1/20, 1/15, 1/10, 1/5, 
{ discrete: width = 320, height = 240 }
    Time interval between frame: 1/30, 1/20, 1/15, 1/10, 1/5, 
{ discrete: width = 176, height = 144 }
    Time interval between frame: 1/30, 1/20, 1/15, 1/10, 1/5, 
{ discrete: width = 160, height = 120 }
    Time interval between frame: 1/30, 1/20, 1/15, 1/10, 1/5, 
checking format: 1448695129
vid:04f2 
pid:b066 
driver:uvcvideo
write /home/msantos/.guvcviewrc OK
free controls
cleaned allocations - 100%
Terminated.

The driver that my webcam needs is not the same as your webcam needs so .... like I said, maybe a driver bug.


R00KIE
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#10 2009-03-10 20:03:48

mediumcool
Member
Registered: 2009-03-10
Posts: 8

Re: Webcam has gone green in Skype Cheese and Ekiga

Thanks for your help Rookie.  I  guess I might get lucky with a kernal upgrade sometime if the bug gets fixed.

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#11 2009-03-10 22:28:02

R00KIE
Forum Fellow
From: Between a computer and a chair
Registered: 2008-09-14
Posts: 4,734

Re: Webcam has gone green in Skype Cheese and Ekiga

If you know exactly which version of the kernel caused this you should report it, if you don't report this then the developers will not guess it isn't working properly for everyone wink. Sometimes developers don't have all the hardware that the drivers support so they will be happy to receive any feedback if things work or not.


R00KIE
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#12 2009-03-11 11:43:36

mediumcool
Member
Registered: 2009-03-10
Posts: 8

Re: Webcam has gone green in Skype Cheese and Ekiga

Good point,  I have reported the bug -  FS#13750.

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#13 2009-03-16 20:44:47

mediumcool
Member
Registered: 2009-03-10
Posts: 8

Re: Webcam has gone green in Skype Cheese and Ekiga

Ok, I tried a fresh install and ran pacman -Syu to make sure I had the latest kernel and xorg - the webcam worked fine in skype. 

I enabled the testing repo and the webcam went green again.

There was no kernel update from testing so I think that is not the issue with the green display.  The gspca module still does not report resolution though, so it still seems to have that bug.

What did change was the xorg and the intel xorg modules.

[2009-03-16 19:26] upgraded xf86-video-intel (2.4.3-1 -> 2.6.99.902-1)
[2009-03-16 19:26] upgraded xorg-server (1.5.3-4 -> 1.6.0-1)
[2009-03-16 19:26] upgraded intel-dri (7.2-2 -> 7.3-1)

If anyone has any thoughts on this, I would love to hear them!

Cheers,
Sean

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#14 2009-07-21 11:22:16

_saiko
Member
From: systemreich
Registered: 2007-08-06
Posts: 91
Website

Re: Webcam has gone green in Skype Cheese and Ekiga

So far i used the ov51x-jpeg driver for the OmniVision Technologies, Inc. OV519 Webcam.
I compiled the driver successfully for the 2.6.28 kernel, but apparently it's no more supported suggesting to use the gspca_ov519 driver.
Sadly the image is green in combination with static.
The gspca driver is correctly loaded so far i can tell
both VLC and Skype behave the same.
What can be done?


cat.7 - where crosstalk is not an issue anymore :'(

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