[mythtv-users] Equip Question: Power supply

Fri Mar 12 15:13:33 EST 2004

That should be plenty to run that hardware.  

> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org 
> [mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Paul K.
> Sent: Friday, March 12, 2004 1:03 PM
> To: Discussion about mythtv
> Subject: [mythtv-users] Equip Question: Power supply
> 
> 
>   I hope this isn't too off topic, but I'm building a Micro 
> ATX sized MythTV box and the cases I see that have a power 
> supply with them are only 200-250 Watt. Does anyone know if 
> this will be enough for a AMD XP 2000+, 2HD, and a DVD optical drive?
> 
> Thanks...
> Paul
> 
> ----- Original Message ----- 
> From: "Bruce Markey" <bjm at lvcm.com>
> To: "Discussion about mythtv" <mythtv-users at mythtv.org>
> Sent: Friday, March 12, 2004 7:45 AM
> Subject: Re: [mythtv-users] Multiple tuners, multiple sources...
> 
> 
> > Scott Nicholson wrote:
> > >>>I want to connect the digital cable receiver to one of 
> the tuners. 
> > >>>I'd like to be able to connect both the USDTV (on 
> S-video) AND my 
> > >>>cable (on coax) to the second tuner -- so that analog cable 
> > >>>channels are available.
> > >>
> > >>Man, what a complex situation!  Just for clarification, 
> you'd have 3
> > >>sources:
> > >>
> > >>Analog cable
> > >>Digital cable
> > >>USDTV
> > >>
> > >>with the following connections:
> > >>
> > >>Digital cable -> SVideo0 or Composite0
> > >>
> > >>Analog cable -> Tuner1
> > >>USDTV -> SVideo1
> > >
> > >
> > > Correct.
> > >
> > >
> > >>(and just to make things more complex, you could split your cable 
> > >>and also hook up Analog Cable -> Tuner0, but we'll ignore 
> that for 
> > >>now)
> > >
> > >
> > > True... Hadn't thought of that.
> > >
> > > Just to clarify... Myth does treat each input on each 
> capture card 
> > > as a different source, right? (Obviously I can't record 
> on both the 
> > > SVideo
> and
> > > the Tuner on the same card at the same time).
> >
> > More clarifying ;-).
> >
> > Source = provider for TV listings (CoxCable, CoxDigital) Input = 
> > connector (coax, s-video) Card = thing that cuts your 
> fingers when you 
> > shove it in the slot.
> >
> > You can use multiple inputs on a card and the scheduler 
> knows that can 
> > only record one thing at a time on a card. You can use the 
> same source 
> > for different inputs on different cards (or even the same card) and 
> > the scheduler knows that it can record a show from that 
> source on any 
> > of those inputs. And you can have multiple cards.
> >
> > >>The good news is that, although having a channel duplicated in 
> > >>multiple sources used to be a nightmare, CVS has (IIRC) 
> the ability 
> > >>to correlate channels in different sources, if they have the same 
> > >>callsign.  This means that, across all 3 sources, a 
> channel with the 
> > >>callsign 'FOODTV' is considered the same channel.  However, 
> > >>'FOODTV-HD' would be a different channel.  I'm not sure if that 
> > >>heuristic applies to the scheduler or just the EPG view... if it 
> > >>doesn't affect the scheduler, then you're out of luck.
> > >
> > >
> > > It sounds like even if the scheduler isn't affected things are at 
> > > least moving in that direction?
> >
> > Joseph is essentially correct but there has been a big move in this 
> > direction that's pretty new so let me give it a shot =).
> >
> > When 0.15 is released or in CVS now, the scheduler has two new 
> > features for matching stations based on callsign and a feature for 
> > adding priority preference values for inputs (ex. s-video on card 2 
> > can be given a higher value than coax on card 1) Using both 
> of these 
> > will allow you (and the scheduler) to do nifty stuff.
> >
> > If two or more things in the channel table have the same "callsign" 
> > the scheduler will consider these to be the same broadcast station 
> > with the same listing (you have to make sure that is true 
> ;-). These 
> > can be the same or different channel numbers on the same or 
> different 
> > source. As long as the callsign is the same it assumes it 
> has the same 
> > listings. The EPG was also hacXXX improved to show just one 
> of these 
> > channels rather than repeating the listings. When you choose a show 
> > from that broadcast station, say FOOD, it knows that it 
> could record 
> > that show from any Source->Card->Input that has "FOOD".
> >
> > I'll guess wrong and say you have FOOD on HDTV channel 124 from the 
> > card 2 svideo and FOOD on channel 44 for the analog and digital 
> > inputs. You have three different sources with FOOD 
> available on four 
> > different inputs. So which will be chosen for "Iron Chef"?
> >
> > In the backend "setup" program, you can go to Input Connections and 
> > choose the input for HDTV on card 2 s-video. Change the Input 
> > preference to "1". The scheduler adds this to the priority 
> when it's 
> > prioritizing. The result is that if Iron Chef has a 
> priority of 5, it 
> > will have priority 6 for the HDTV and 5 for all the others.
> >
> > This means that it will alway try to record Iron Chef in 
> HD. However, 
> > if some other show with a higher priority already gets the 
> HDTV input, 
> > the scheduler will try to use one of the other S/C/Is to 
> record Iron 
> > Chef.
> >
> > >>Unfortunately, I don't think Myth currently has the capability to 
> > >>indicate card preferences.
> > >
> > >
> > > Any idea if this is something that may be added in the 
> future? (Has 
> > > it
> been
> > > requested before / is it something the devs would be interested in
> > > implementing?)
> >
> > It is not in the current 0.14 release but will be in 0.15 
> and has been 
> > in CVS for about two weeks.
> >
> > >>...
> > >>(3) name the channels as in (2) above, but set up two identical 
> > >>recordings -- one for "FOODTV" and one for "FOODTV-HD".  Give the 
> > >>one on "FOODTV-HD" a higher priority.  Worst case, it 
> records twice.  
> > >>Best case (if you turn on duplicate detection & you have enough 
> > >>program information), the lower priority one will be suppressed 
> > >>because the scheduler knows it's being recorded 
> elsewhere.  Hey, it 
> > >>ain't pretty, but it might work...
> >
> > You would only want to add "-HD" if there were differences in the 
> > schedules. Otherwise, use the same callsign and the the Input 
> > preference will take care of the preferred input and can 
> fail-over to 
> > another input when necessary.
> >
> > --  bjm
> >
> 
> 
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