[mythtv] dev filesystem

[Isaac Richards]

On Wednesday 07 August 2002 06:46 pm, daz@undertaker.homeip.net wrote:
> I had mythtv working on my Mandrake 8.2 (almost 100% cooker) box just a
> few weeks ago.  Im pretty sure I was using the dev filesystem bit.
> recently, I switched to gentoo (definately with dev-fs).  for the life of
> me, I cant get mythtv to work correctly.  I can get sound, but no video.
> Ive tried running it as root (as some previous posts mentioned) but no-go.
> xawtv, zapping, and the avitools work without any problems.

Are you using the last release (pr3)?  There was a bug in it where it had 
/dev/video hardcoded into the recorder, and so won't run with devfs.

> Heres my question:
> if anyone is using mythtv with dev-fs:
not I.

> what version of qt?
qt 3.0.5

> which windowmanager/de (gnome/kde) ?
kde 3

> which kernel?
2.4.19-pre9-ac2, currently.  I've been meaning to upgrade.

> what permissions are on /dev/v4l/* ?
no devfs =)

> alsa or oss?
alsa 0.9

> did you have to do anything different to get it to work?
>
> and to the developer:  is there a way to get debugging info from mythtv
> (ive run it through gdb and all I get is "no debuggin symbols found" with
> only one error message: "VIDIOCSYNC1: Interrupted system call").  anything
> I can do other than that? the command I use is: "gdb
> /usr/local/bin/mythfrontend"

That's the proper way to do it, you just need to recompile with debugging 
turned on.  Edit settings.pro in the top level dir, comment out the CONFIG += 
release, and uncomment the debug line.  make clean, make install.  gdb should 
work fine then.  It's fairly slow running it in gdb, though, so it helps to 
cut down the resolution of the video a bit.

Isaac