[mythtv-users] femon only works with mythbackend stopped?

Paul Bender pebender at san.rr.com
Sat Nov 24 16:42:29 UTC 2007

Tom Dexter wrote:
> I'm running Gentoo with media-tv/linuxtv-dvb-apps-,
> media-tv/mythtv-0.20.2_p14324 and kernel 2.6.22-gentoo-r9.  I have
> three HD-5500 cards used only for ATSC OTA broadcasts.
> Everything I keep reading indicates that I should be able to monitor
> signal strength with femon while the backend is running, which would
> be awesome...I've been looking for a way to do that.  However it only
> works with the backend stopped.  If I try to use it while the backend
> is running the only output I get is:
> opening frontend failed: No such file or directory
> ...on all three of my adapters, even though the device files are there.
> Is this supposed to work?  If so, any ideas why it wouldn't?  Thanks.

I have idea what femon is, so take my advice with a grain of salt.

Using mythtv-setup, mythbackend can be configured to hold onto the tuner 
cards either all the time or only when in use. You might try changing 
that setting for your tuner cards and see if it helps.

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