[mythtv-users] performance and missing channels
Michael T. Dean
mtdean at thirdcontact.com
Mon Oct 4 13:52:56 EDT 2004
On 10/04/2004 11:49 AM, Tilman Kispersky wrote:
> My myth setup is largely complete.
>
> Currently, for some reason I am unable to view channels other than 5
> and 7.
> I've got lots of other ones on my TV, they just come through as static
> on my computer when I change to them
> using mythfrontend. The channel guide data exists (the info bar
> correctly identifies
> the channel and what should be playing), the picture is static and
> there is no audio. The
> only strange setting in my setup is that I set tuner type=39. I was
> getting only a black
> screen before, and setting type=39 gave me the two channels I have
> now, and the static.
> (thats at least a step in the right direction).
> Does anyone have any experience with this problem and know what I have
> to do to see
> all channels??
You have specified the wrong tuner type. You probably have the TCL
2002N tuner--which is not yet supported by the tuner module that ships
with the Linux kernel. Therefore, you need to do some patching.
Please post:
Your distribution
The ivtv-related info from mod{ules,probe}.conf
The ivtv initialization info, which can be obtained from your system log
file--assuming /var/log/messages--with:
tac /var/log/messages |
sed -n '/= END INIT IVTV =/,/= START INIT IVTV =/p;
/= START INIT IVTV =/q' |
tac
> Another question
> I am running myth on a Duron 800 with Haup. 250. Encoding takes about
> 15-20% CPU (does that seem about right?).
> and decoding (watching a stored program) a full 100%. I am using
> integrated video for this,
> how much of a performace gain would I get with an improved video card?
Depends on which video card you're using currently. If the video
drivers for your current card support the X Windows Video extension, Xv
(you can find out by running xvinfo--"no adapters found" is bad), you
probably won't see much difference. If they don't support Xv, you'll
see a huge difference.
Mike
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