[mythtv-users] Installlation problems (ivtv, only getting static, or black)

[Dan]

hmm, I tried that,  (channel 3, is also a good channel, but I tried setting it to nbc (44 for me)..still just static :(

as a sanity check I plugged in the cable into both the fm, and tuner ports..(just in case it was miss labelled)....didn't help.

in case this helps...

[root at mc tmp]# xterm &
[1] 4063
[root at mc tmp]# /usr/lib/ivtv/test_ioctl -a
ioctl: IVTV_IOC_G_CODEC
Codec parameters
aspect      : 2
audio       : 0x00e9
bframes     : 3
bitrate_mode: 0
bitrate     : 8000000
bitrate_peak: 16000000
dnr_mode    : 0
dnr_spatial : 0
dnr_temporal: 0
dnr_type    : 0
framerate   : 0
framespergop: 15
gop_closure : 0
pulldown    : 0
stream_type : 0
ioctl: VIDIOC_G_FMT
        Type   : Video Capture
        Width  : 720
        Height : 480
ioctl: VIDIOC_QUERYCAP
        Driver name   : ivtv
        Card type     : Vanilla iTVC15 card
        Bus info      : 0
        Driver version: 1
        Capabilities  : 0x01030003
ioctl: VIDIOC_ENUMINPUT
        Name    : Composite 0
        Type    : 0x00000002
        Audioset: 0x00000001
        Tuner   : 0x00000000
        Standard: 0x            3000 ( NTSC )
        Status  : 0
        Name    : Composite 1
        Type    : 0x00000002
        Audioset: 0x00000001
        Tuner   : 0x00000000
        Standard: 0x            3000 ( NTSC )
        Status  : 0
        Name    : Composite 2
        Type    : 0x00000002
        Audioset: 0x00000001
        Tuner   : 0x00000000
        Standard: 0x            3000 ( NTSC )
        Status  : 0
        Name    : Composite 3
        Type    : 0x00000002
        Audioset: 0x00000001
        Tuner   : 0x00000000
        Standard: 0x            3000 ( NTSC )
        Status  : 0
        Name    : Tuner 0
        Type    : 0x00000001
    Audioset: 0x00000000
        Tuner   : 0x00000000
        Standard: 0x            3000 ( NTSC )
        Status  : 0
        Name    : Composite 4
        Type    : 0x00000002
        Audioset: 0x00000001
        Tuner   : 0x00000000
        Standard: 0x            3000 ( NTSC )
        Status  : 0
        Name    : S-Video 0
        Type    : 0x00000002
        Audioset: 0x00000001
        Tuner   : 0x00000000
        Standard: 0x            3000 ( NTSC )
        Status  : 0
        Name    : S-Video 1
        Type    : 0x00000002
        Audioset: 0x00000001
        Tuner   : 0x00000000
        Standard: 0x            3000 ( NTSC )
        Status  : 0
        Name    : S-Video 2
        Type    : 0x00000002
        Audioset: 0x00000001
        Tuner   : 0x00000000
        Standard: 0x            3000 ( NTSC )
        Status  : 0
        Name    : S-Video 3
        Type    : 0x00000002
        Audioset: 0x00000001
        Tuner   : 0x00000000
        Standard: 0x            3000 ( NTSC )
        Status  : 0
ioctl: VIDIOC_G_INPUT
Input = 4
ioctl: VIDIOC_G_FREQUENCY
Frequency = 0
ioctl: VIDIOC_ENUMSTD
        ID          : 0x            3000
        Name        : NTSC
        Frame period: 1001/30000
        Frame lines : 525
        ID          : 0x              FF
        Name        : PAL
        Frame period: 1/25
        Frame lines : 625
        ID          : 0x          7F0000
        Name        : SECAM
        Frame period: 1/25
        Frame lines : 625
ioctl: VIDIOC_G_STD
Standard = 0x00003000
ioctl: VIDIOC_QUERYCTRL
Brightness = 128
Contrast = 64
Saturation = 64
Hue = 0
Volume = 59343
Mute = 0



-----Original Message-----
From: "Jarod C. Wilson" <jcw at wilsonet.com>
Sent: Nov 9, 2003 8:39 PM
To: Discussion about mythtv <mythtv-users at mythtv.org>, 
	Dan <dshopkins at earthlink.net>
Subject: Re: [mythtv-users] Installlation problems (ivtv, only getting static, or black)

On Nov 9, 2003, at 13:57, Dan wrote:

> and the cat /dev/vidgeo0 > /tmp/test.mpg
>
> What should I actaully see here??? (going through all the possible p 
> values (in my case 0-9)
> I get a black mpg, except for p 4, which gives me black and white 
> static.  (no audio on all numbers)

It would appear -p 4 is correct for you, but you aren't tuning in a 
valid station in your area. It seems whatever channel the card is 
defaulting to (channel 3, IIRC...) doesn't carry a signal where you 
are. I can't recall if you should be hearing static also or not, so you 
may or may not have an audio issue also, but first things first.

> I guess where Im confused, is the test_ioctl I see selects a 'tuner' 
> but how does it know what channel to tune?
>
> Any suggestions/tips greatly appreciated :)

Look in /usr/lib/ivtv for ptune.pl, which you can use to set the 
channel. Set the channel to something you know should be valid, and try 
the capture again. Hopefully, that's all you need...

-- 
Jarod C. Wilson, RHCE

Got a question? Read this first...
     http://catb.org/~esr/faqs/smart-questions.html
MythTV, Red Hat Linux 9 & ATrpms documentation:
     http://pvrhw.goldfish.org/tiki-page.php?pageName=rh9pvr250
MythTV Searchable Mailing List Archive
     http://www.gossamer-threads.com/archive/MythTV_C2/