[MythDora] Autoloading modules in 2.6.20
gchris at bellsouth.net
Thu Mar 22 19:24:32 CET 2007
> From: gchris <gchris at bellsouth.net>
> Date: 2007/03/21 Wed PM 08:36:32 EDT
> To: Discussion about MythDora <mythdora at atrpms.net>
> Subject: Re: [MythDora] Autoloading modules in 2.6.20
> New problem with the HD3000 cards?
> I completed basic system installation with the 2.6.20 kernel.
. . .
> All the /dev ports then looked perfectly normal so I started
> mythtvsetup. All looked perfectly normal through the first three steps
> but when I went to do a channel scan on the first dvb card, I wasn't
> seeing anything on at all on the signal strength meter or the signal to
> noise meter and no channels were found. Those meters have always in the
> past showed some amount of residual noise so something is very wrong. I
> canceled out of Mythtvsetup and saw that the terminal window contained
> these warnings:
> 2007-03-21 19:38:24.579 DiSEqCDevTree, Warning: No device tree for cardid 1
> 2007-03-21 19:38:24.631 DiSEqCDevTree, Warning: No device tree for cardid 2
> 2007-03-21 19:38:44.873 DVBSignalMonitor(0)::constructor(-1,Warning, can
> not measure Signal Strength): Remote I/O error
> 2007-03-21 19:38:44.998 DVBSignalMonitor(0)::constructor(-1,Warning, can
> not measure S/N): Remote I/O error
I'm currently thinking that the DiSEqC warnings are probably meanless
because these cards don't support that function and so no information is
placed in the database for that function.
DVBSignalMonitor *may* be telling the truth in reporting that Mythtv is
having difficulty communicating with the card.
Since I wasn't able to find an error in my entries in Mythsetup, I
installed an old friend, azap which is a dvb card testing utility.
Azap, working with a channels.conf file lets you select any available
station and then it repeatly tries to tune and access the station using
the standard /dev/dvb/adapter ports and reports signal strength, SNR and
signal lock. Azap worked normally with both HD3000s. It was able to
tune, lock and report normal signal strength and SNR.
These findings tend to argue for a Mythtv/2.6.20 compatibility issue
rather than a driver problem and it would be very helpful if Jarod could
confirm this problem independently with his HD3000.
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