[linux-dvb] How to achieve persistent DVB-S tuning?

Wade J. Weppler wade.weppler at wwworks.com
Fri Jul 13 01:21:05 CEST 2007

Thanks Manu!

I've added the following to modprobe.conf

options dvb_core dvb_shutdown_timeout=0 dvb_powerdown_on_sleep=0

And tuning is now perfectly persistent.

On a DVB-related note, I also have the TT-3200, which you apparently have been working on getting working with linux-dvb.  Is there any further progress?  I was never able to get the proper /dev/dvb entries to be created when I loaded your modules.

Thanks again,


-----Original Message-----
From: Manu Abraham [mailto:abraham.manu at gmail.com]
Sent: Thursday, July 12, 2007 1:57 PM
To: Wade J. Weppler
Cc: linux-dvb at linuxtv.org
Subject: Re: [linux-dvb] How to achieve persistent DVB-S tuning?

On 7/12/07, Wade J. Weppler <wade.weppler at wwworks.com> wrote:
> I'm trying to get szap (or dvbtune) to maintain a lock, even after dvbtune or szap have been closed.
> Whenever I tune to a transponder, it gets a lock, and then I close the application and open up dvbsnoop.  Dvbsnoop will work for a few seconds, and then no further data will be available.  I then have to re-run dvbtune or szap to get another lock.
> I've used applications other than dvbsnoop, like mplayer, etc., and I have the same issue.
> I'm using a SkyStar2 DVB-S, running on a Fedora 7 box.
> Any help is appreciated!

modinfo dvb_core talks about a useful module parameter "dvb_powerdown_on_sleep"

disabling ie, this parameter = 0, the LNB doesn't get powered down

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