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 0xc0000000". Then,
logged in as root, I ran the command "v4l-config -a 0xc0000000" 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
pgpdill8GHFJn.pgp
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