Re: [Mjpeg-users] Video monitoring under FC6 - almost solved

2006-11-10 Thread Anne Wilson
On Thursday 09 November 2006 18:19, Anne Wilson wrote:
 On Thursday 09 November 2006 18:00, Bernhard Praschinger wrote:
  Hallo
 
   I've been working happily with mjpegtools under FC4, using xawtv to
   monitor input/capture.  Now I've installed FC6, and can't get it to
   work.
 
  What's the output of v4l-conf ? (v4l-conf -c /dev/video0)

 Hello again, Bernhard.

 v4l-conf -c /dev/video0
 v4l-conf: using X11 display :0.0
 WARNING: v4l-conf is compiled without DGA support.
 mode: 1280x1024, depth=24, bpp=32, bpl=5120, base=unknown
 WARNING: couldn't find framebuffer base address, try manual
  configuration (v4l-conf -a addr)
 /dev/video0 [v4l2]: configuration done

 I tried

 xawtv -nodga
 This is xawtv-3.95, running on Linux/i686 (2.6.18-1.2798.fc6)
 WARNING: v4l-conf is compiled without DGA support.
 WARNING: couldn't find framebuffer base address, try manual
  configuration (v4l-conf -a addr)
 ioctl:
 VIDIOC_S_FMT(type=VIDEO_OVERLAY;fmt.win.w.left=4;fmt.win.w.top=686;fmt.win.
w.width=384;fmt.win.w.height=288;fmt.win.field=ANY;fmt.win.chromakey=0;fmt.w
in.clips=0x8d89ecc;fmt.win.clipcount=0;fmt.win.bitmap=(nil)): Invalid
 argument
 no way to get: 384x288 32 bit TrueColor (LE: bgr-)

 I don't think there'a any point in trying the others until I've solved
 the 'frambuffer base address' problem.  How do I find it?  And how do I
 pass it to v4l?

From a Linspire list I found:

I used this program to fix a configuration problem with xawtv. My xawtv was 
not displaying any video, just a black screen with sound. To diagnose the 
problem, I ran xawtv from an xterm window and observed the following 
messsages: WARNING: Your X-Server has no DGA support. WARNING: couldn't find 
framebuffer base address, try manual configuration (v4l-conf -a ) I opened 
up the file /var/log/XFree86.0.log and searched for the term framebuffer 
until I found the line Linear framebuffer (phys) at 0xc000. Then, 
logged in as root, I ran the command v4l-config -a 0xc000 from the 
xterm window. Now xawtv works fine although I still get that second warning 
line about DGA support.

Slight adjustment needed - the file that needs editing is v4l.conf, not 
v4l.config, and the framebuffer address is found in Xorg.0.log.

Now I can get sound and vision in xawtv (tvtime still doesn't recognise the 
card, saying it can't open capture device /dev/video0).

I've still a bit of a problem, though, as after a few seconds everything on 
the screen starts blinking - though not necessarily continuously.  What could 
cause that?

Anne


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Re: [Mjpeg-users] Video monitoring under FC6 - almost solved

2006-11-10 Thread Bernhard Praschinger
Hallo

 I've been working happily with mjpegtools under FC4, using xawtv to
 monitor input/capture.  Now I've installed FC6, and can't get it to
 work.
 What's the output of v4l-conf ? (v4l-conf -c /dev/video0)
 Hello again, Bernhard.

 v4l-conf -c /dev/video0
 v4l-conf: using X11 display :0.0
 WARNING: v4l-conf is compiled without DGA support.
 mode: 1280x1024, depth=24, bpp=32, bpl=5120, base=unknown
 WARNING: couldn't find framebuffer base address, try manual
  configuration (v4l-conf -a addr)
 /dev/video0 [v4l2]: configuration done
One thing comes into my mind. You use a color depth of 24, can you
downgrade it to 16 bit. I think I remember problems with 24 bit, and
16 bit worked well. That would be a setting in the X11 config.

 Slight adjustment needed - the file that needs editing is v4l.conf, not 
 v4l.config, and the framebuffer address is found in Xorg.0.log.
Where is that file. I didn't find it on my machine.

 Now I can get sound and vision in xawtv (tvtime still doesn't recognise the 
 card, saying it can't open capture device /dev/video0).
Does recording work ?

 I've still a bit of a problem, though, as after a few seconds everything on 
 the screen starts blinking - though not necessarily continuously.  What could 
 cause that?



auf hoffentlich bald,

Berni the Chaos of Woodquarter

Email: [EMAIL PROTECTED]
www: http://www.lysator.liu.se/~gz/bernhard

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Re: [Mjpeg-users] Video monitoring under FC6 - almost solved

2006-11-10 Thread Anne Wilson
On Friday 10 November 2006 16:44, Bernhard Praschinger wrote:
 Hallo

  I've been working happily with mjpegtools under FC4, using xawtv to
  monitor input/capture.  Now I've installed FC6, and can't get it to
  work.
 
  What's the output of v4l-conf ? (v4l-conf -c /dev/video0)
 
  Hello again, Bernhard.
 
  v4l-conf -c /dev/video0
  v4l-conf: using X11 display :0.0
  WARNING: v4l-conf is compiled without DGA support.
  mode: 1280x1024, depth=24, bpp=32, bpl=5120, base=unknown
  WARNING: couldn't find framebuffer base address, try manual
   configuration (v4l-conf -a addr)
  /dev/video0 [v4l2]: configuration done

 One thing comes into my mind. You use a color depth of 24, can you
 downgrade it to 16 bit. I think I remember problems with 24 bit, and
 16 bit worked well. That would be a setting in the X11 config.

  Slight adjustment needed - the file that needs editing is v4l.conf, not
  v4l.config, and the framebuffer address is found in Xorg.0.log.

 Where is that file. I didn't find it on my machine.

/var/log/Xorg.0.log

  Now I can get sound and vision in xawtv (tvtime still doesn't recognise
  the card, saying it can't open capture device /dev/video0).

 Does recording work ?

It does - glav has no problem playing it back.

  I've still a bit of a problem, though, as after a few seconds everything
  on the screen starts blinking - though not necessarily continuously. 
  What could cause that?

I wonder if it was because the audio level was set too loud?  It didn't happen 
at all this time.

The only problem I see now is in the terminal message 'Disk too slow, can not 
keep pace!'.  Perhaps a dma issue?  I'll have to look into that.

Thanks, as always, for the help.

Anne


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Re: [Mjpeg-users] Video monitoring under FC6 - almost solved

2006-11-10 Thread Bernhard Praschinger
HAllo

 Slight adjustment needed - the file that needs editing is v4l.conf, not
 v4l.config, and the framebuffer address is found in Xorg.0.log.
 Where is that file. I didn't find it on my machine.
 /var/log/Xorg.0.log
Sorry for being unclear. I wanted to know the location oth the v4l.conf
file, not where I find the adress.

 I've still a bit of a problem, though, as after a few seconds everything
 on the screen starts blinking - though not necessarily continuously. 
 What could cause that?
 I wonder if it was because the audio level was set too loud?  It didn't 
 happen 
 at all this time.
That seems unlikely for me. Have you rebooted your system between the
two tests ?

 The only problem I see now is in the terminal message 'Disk too slow, can not 
 keep pace!'.  Perhaps a dma issue?  I'll have to look into that.
With (hdparm /dev/hdX or in the /proc directory) you see if dma is
enabled. The disk to slow message come on my system sometimes if I encod
a video and play it back.

auf hoffentlich bald,

Berni the Chaos of Woodquarter

Email: [EMAIL PROTECTED]
www: http://www.lysator.liu.se/~gz/bernhard

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Re: [Mjpeg-users] Video monitoring under FC6 - almost solved

2006-11-10 Thread Anne Wilson
On Saturday 11 November 2006 05:48, Bernhard Praschinger wrote:
 HAllo

  Slight adjustment needed - the file that needs editing is v4l.conf, not
  v4l.config, and the framebuffer address is found in Xorg.0.log.
 
  Where is that file. I didn't find it on my machine.
 
  /var/log/Xorg.0.log

 Sorry for being unclear. I wanted to know the location oth the v4l.conf
 file, not where I find the adress.

/etc/sane.d/v4l.conf

I'm not sure just what that 'v4l.conf -a 0xc000' actually does - it 
doesn't add anything visible when you cat the file.

  I've still a bit of a problem, though, as after a few seconds
  everything on the screen starts blinking - though not necessarily
  continuously. What could cause that?
 
  I wonder if it was because the audio level was set too loud?  It didn't
  happen at all this time.

 That seems unlikely for me. Have you rebooted your system between the
 two tests ?

It seems unlikely to me, too, but I can't think of anything else that changed.  
No, there was no reboot.  In fact I don't think I had even logged out during 
that time.

  The only problem I see now is in the terminal message 'Disk too slow, can
  not keep pace!'.  Perhaps a dma issue?  I'll have to look into that.

 With (hdparm /dev/hdX or in the /proc directory) you see if dma is
 enabled. 

Yes, I checked it yesterday evening.  It says it is running at udma5

 The disk to slow message come on my system sometimes if I encod 
 a video and play it back.

It doesn't seem to be doing any harm.  It does look as though I can carry on 
with my tape  dvd conversions.  Thanks again.

Anne


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