[mythtv] please help - only seeing a blue screen in mythtv. grabdisplay?

[Michael Kedl]

The most obvious thing (that everyone including me has problems with) is
to use the most recent ALSA drivers instead of the default OSS ones
shipped with your distro.  Once you get past the audio issue, see if the
blue screen is still causing you problems.

Good luck,
Mike

On Sun, 2003-01-19 at 20:53, Dan Brown wrote:
> Hi- I'm trying to install mythtv 0.7 on a P4 2.4ghz
> system running mandrake 9.0, with an AVerTV Stereo
> tuner card and a GeForce4 MX 420 video card with
> s-video-out. My sound card is an on-board SoundMAX
> that shows up in the mandrake control center's devices
> list as a ICH 845G/GL and uses the i810_audio module.
> 
> I'm a recent migrant from Windows, and let me tell you
> how bummed I was to see a big blue screen when I first
> tried to run the mythfrontend. after reading as much
> as I could here and elsewhere, it looks like I have
> some fundamental problems:
> 
> XawTV works fine in overlay mode, but only shows a
> blue screen in grabdisplay mode (I can continue to
> hear sound for each channel as I change them, but
> that's just the loopback cable). If I move through the
> channels, I can a single frame's worth of video, but
> then the blue screen overwrites it. jpeg capture works
> in overlay mode, but not in grabdisplay mode. An
> earlier post from Isaac suggested that I should
> resolve this grabdisplay issue first. But I haven't
> been able to make much progress - my bttv drivers and
> modules seem to be working fine, according to what I
> read here:
> http://will.freehosting.net/bttv-HOWTO-5.html
> 
> although when I use v4l-conf, I do get a warning that
> seems to indicate I'm only using v4l and not v4l2:
> /dev/video0 [v4l2]: ioctl VIDIOC_QUERYCAP: Invalid
> argument
> /dev/video0 [v4l]: configuration done
> 
> the messages I get from mythfrontend on the console
> are:
> Probed: /dev/video - Television
> Probed: /dev/video - Composite1
> Probed: /dev/video - S-Video
> Changing from None to WatchingLiveTV
> strange error flushing buffer ...
> player: Can't open audio device: /dev/dsp
> open audio:: Device or resource busy
> Using XV port 56
> mythfrontend: Fatal IO error: client killed
> (I had to right click on the task bar icon and close
> the application, because the program didn't respond to
> the keys Q, ctrl-c, c, up, down, or anything else I
> could think of)
> 
> and the messages from mythtv:
> Probed: /dev/video - Television
> Probed: /dev/video - Composite1
> Probed: /dev/video - S-Video
> Changing from None to WatchingLiveTV
> audio volume set to '32768'
> strange error flushing buffer ...
> player: Can't open audio device: /dev/dsp
> open audio:: Device or resource busy
> Using XV port 56
> 
> What can I try next? Many thanks in advance
> 
> Dan
> ps- hoping to get this taken care of so I can record
> the superbowl. go raiduz!
> 
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-- 
Michael Kedl <kedlm at knology.net>