[mythtv-users] performance and missing channels
Michael T. Dean
mtdean at thirdcontact.com
Thu Oct 7 08:56:42 EDT 2004
On 10/06/2004 07:23 PM, Tilman Kispersky wrote:
> Recently I posted about not being able to receive more than 2 channels.
> It was suggested that I patch my kernel and update IVTV to gain
> support for my
> newer 250 chipset. I have done those things and have some improvements:
> Encoding now takes almost no CPU (before ~ 20%)
> I now have audio on all channels, but still only static on all but 2
> (before, audio and video only two channels only, static and no audio
> on the rest)
> I can change to all channels, the picture is just static even though
> the audio comes through!
> Below is the output of the new IVTV driver, I updated to ck114f right
> What might be blocking the other channels??
Bad ivtv options?
> How can I verify that the kernel patch worked?
> Is this a mythtv setting I am messing up?
Perhaps you're using the wrong channel table. Have you tried both
us-cable and us-cable-hrc?
> What could be going wrong??
If these changes don't work, I suggest trying the card in Windows to
verify the hardware. If it doesn't work in Windows, it's likely a bad card.
> thanks for any advice
> alias char-major-81 videodev
> alias char-major-81-0 ivtv
This is good.
> options ivtv ivtv_debug=1 tuner=50
> options msp3400 once=0 simpler=1 simple=0
> add below ivtv msp3400 saa7115 tuner saa7127
Get rid of this junk. Quoting my previous message:
> How should my modules.conf look after this? What should I set tuner
Only the lines:
alias char-major-81 videodev
alias char-major-81-0 ivtv
And you wouldn't set a tuner type with an ivtv-0.1.10-pre2-ckXXX release.
> kernel: ivtv: Setting Tuner 50
> kernel: tuner: type set to 50 (TCL 2002N)
The tuner module patch worked. Otherwise, it would have set "tuner not
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