I'm in the process of trying to get MythTV installed on a Debian/unstable box, and I'm running into difficulty with the TV-out part of it.

I'm using the 0.3.2i drivers from http://205.209.168.201/~ckennedy/ivtv/ivtv-0.3/, on Linux 2.6.10, compiled from the kernel-source-2.6.10 .deb file.

The tuner works: I can use ptune-ui.pl to select channels and change inputs.

My first problem: I can't seem to get any PAL output, of any kind. Looking in the saa7127.c file reveals a line that looks like this:

        /* Look if the pal module parameter is set */

        /* Select NTSC Video Standard, default */
        encoder->norm         = SAA7127_VIDEO_NORM_NTSC;

...which appears to be missing a check of some kind. If I hack that line to use SAA7127_VIDEO_NORM_PAL, I can issue:

 # dd if=/dev/video of=/dev/video16 bs=64k

...and I get correct output (over RCA or S-Video) on my TV.

However, there also seems to be no code to enable the test pattern at runtime.

What am I missing? Should I be using a different (earlier) version of the drivers? Bear in mind that I'm using a 2.6.10 kernel.

My second problem is that I can't get the FB device to work. When the PC comes on, I briefly get a hashed test pattern, but then the screen turns to repeating black and white lines, offset. In order to get the TV output (/dev/video16), I have to play with ivtvfbctl -alpha 0.

I've tried using MPlayer-1.0pre5-ivtv-osd-4 from http://205.209.168.201/~ckennedy/ivtv/ivtv_apps/

This works successfully when I use "-vo x11". When, however, I use "-vo ivtv", I get no output on the TV. I don't get any errors reported, though.

If I use "-vo fbdev", I get an "unable to mmap" error and no output.

My dmesg output is at http://www.differentpla.net/~roger/ivtv/, along with the output from ckennedy's patched-mplayer.

I don't have any other framebuffer drivers loaded; I'm using the "via" driver for X11.

My ultimate goal is to get X on the TV, so that I can use MythTV, but I'm having no luck.

Any suggestions? Do you need more information from me?

Cheers,
Roger.


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