[ivtv-users] PVR-500 tunner0 auto muting problem

Berant Lemmenes berant at lemmenes.com
Thu Mar 30 23:37:00 CEST 2006

Hmm well that's not good... as I live in the USA so standard NTSC.

And as a typical American I didn't even think that it would default to 
something else! ;)

I'm not using any module options when loading the ivtv module 
(module.conf snip)

# cat /etc/modprobe.conf
alias eth0 forcedeth
alias scsi_hostadapter sata_nv
alias snd-card-0 snd-intel8x0
options snd-card-0 index=0
options snd-intel8x0 index=0
remove snd-intel8x0 { /usr/sbin/alsactl store 0 >/dev/null 2>&1 || : ; 
}; /sbin/modprobe -r --ignore-remove snd-intel8x0
alias usb-controller ehci-hcd
alias usb-controller1 ohci-hcd

# ivtv (PVR-500MCE)
alias char-major-81 videodev
alias char-major-81-0 ivtv
alias char-major-81-1 ivtv

is there a module option to force the type?  I did some quick checks on the ivtvdriver.org site and didn't see anything.  I'll start googling.

Thanks for the quick response!

Best regards,

Hans Verkuil wrote:

>On Thursday 30 March 2006 22:50, Berant Lemmenes wrote:
>>Hello all,
>>I've recently setup a mythv system with a single PVR-500, taking
>>input from a Comcast basic (non-digital) cable feed.
>>The issue I'm having is that the first tuner on the PVR-500 (tuner0)
>>will automatically mute it's self when tuning to certain channels. 
>>Once this happens I can't un-mute the card (via ivtvctl -y mute=0 -d
>>/dev/video0), and have to remove the ivtv module and reload it.
>>I can it's not just the lower frequency channels ( which I under
>>stand overlap with the FM radio range) either, it will mute when
>>tuning to us-cable channel 8 (181.250 MHz), as well as channel 62
>>(451.250 MHz) but works fine on 33 (277.250 MHz).
>>While tuner1 works great on all the channels.
>>Visually there is not much of a difference as far as quality (other
>>than some ghosting on channel 8), and the audio sounds perfect when
>>listening on tuner1.
>>#ivtvctl -d /dev/video0 --log-status while muted
>>ivtv0: =================  START STATUS CARD #0  =================
>>cx25840 2-0044: Video signal:              present
>>cx25840 2-0044: Detected format:           NTSC-M
>>cx25840 2-0044: Detected audio mode:       mono
>>cx25840 2-0044: Detected audio standard:   EIAJ
>>cx25840 2-0044: Audio muted:               yes
>>cx25840 2-0044: Audio microcontroller:     running
>>cx25840 2-0044: Configured audio standard: automatic detection
>>cx25840 2-0044: Configured audio system:   EIAJ
>>cx25840 2-0044: Specified standard:        NTSC-J
>Specified standard NTSC-J? What module options did you use? That's the 
>Japanese NTSC standard. Or do you live in Japan?
>	Hans
>ivtv-users mailing list
>ivtv-users at ivtvdriver.org

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