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1.41421 at gmail

Sep 6, 2010, 8:00 AM

Post #1 of 7 (478 views)
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Hardware for MythTV

After a couple of years with MythTV 0.20 I am about to embark in a
full upgrade - not only MythTV but also the Linux box running it. What
kind of specs should my new box aim to meet? My current box is built
around a Pentium 4 at 3 GHz, with 1 GB of memory, an Nvidia FX 5200
video card and a Hauppauge PVR 150 capture card. I would like to
capture HD video (which implies a new capture card - which one?) and
this platform does not play well (if at all) HD videos - at best they
are jerky.

Will getting a multicore box help here?
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tgm4883 at gmail

Sep 6, 2010, 8:13 AM

Post #2 of 7 (462 views)
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Re: Hardware for MythTV [In reply to]

On Mon, Sep 6, 2010 at 8:00 AM, JCA <1.41421 [at] gmail> wrote:

> After a couple of years with MythTV 0.20 I am about to embark in a
> full upgrade - not only MythTV but also the Linux box running it. What
> kind of specs should my new box aim to meet? My current box is built
> around a Pentium 4 at 3 GHz, with 1 GB of memory, an Nvidia FX 5200
> video card and a Hauppauge PVR 150 capture card. I would like to
> capture HD video (which implies a new capture card - which one?) and
> this platform does not play well (if at all) HD videos - at best they
> are jerky.
>
> Will getting a multicore box help here?
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>


Capture card wise it depends on where you are at and what you want to
record. I've got a HDPVR (records component) and a pcHDTV 5500 and like them
both. I've also heard great things about the HDHomerun. But i'm in the US,
so if you live somewhere else you might need something different.

I just picked up one of these for a frontend
http://www.zotacusa.com/zotac-mag-hd-nd01.html and loaded Mythbuntu 10.04 on
it. Everything seems to work OOTB and it plays back HD just fine.

Thomas


beww at beww

Sep 6, 2010, 8:56 AM

Post #3 of 7 (460 views)
Permalink
Re: Hardware for MythTV [In reply to]

On Monday, September 06, 2010 09:00:51 am JCA wrote:
> After a couple of years with MythTV 0.20 I am about to embark in a
> full upgrade - not only MythTV but also the Linux box running it. What
> kind of specs should my new box aim to meet? My current box is built
> around a Pentium 4 at 3 GHz, with 1 GB of memory, an Nvidia FX 5200
> video card and a Hauppauge PVR 150 capture card. I would like to
> capture HD video (which implies a new capture card - which one?) and
> this platform does not play well (if at all) HD videos - at best they
> are jerky.
>

Given your present system, it sounds like you are talking about a combined BE/FE machine.

In the US, the HDHR and the HD-PVR are common for HD capture. I'd keep the PVR-150 for capturing the SD output of an STB
or satellite receiver, and any analog channels you might still have access to on a cable system.

The HDHR is good for any OTA stations, and any clear QAM available. The HD-PVR is good for capturing the component HD
output of an STB/sat receiver.

You might give serious thought to a separate BE and FE, which allows for much more flexibility and upgrade potential to an
additional FE.

> Will getting a multicore box help here?

Kind of hard to find new machines that are not at least dual-core these days. The software support for multi-core will
improve with time, and you won't save enough money by getting a single-core CPU to be worth it. The exception is FE
machines like the Atom-based ones, but even they are trending towards dual-core.

Think about if you want to use your main machine, or dedicated BE if you go that route, as anything else, like a household
NAS server, and how much disk capacity you might need. If you want to run VMs on this machine, take that into
consideration as well.

I believe in the "central machine" concept, but others like the separate small low-power boxes approach. It's up to you,
and highly dependent on your needs and budget.


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cpwright at gmail

Sep 6, 2010, 11:06 AM

Post #4 of 7 (454 views)
Permalink
Re: Hardware for MythTV [In reply to]

On Mon, Sep 6, 2010 at 11:00 AM, JCA <1.41421 [at] gmail> wrote:
>   After a couple of years with MythTV 0.20 I am about to embark in a
> full upgrade - not only MythTV but also the Linux box running it. What
> kind of specs should my new box aim to meet? My current box is built
> around a Pentium 4 at 3 GHz, with 1 GB of memory, an Nvidia FX 5200
> video card and a Hauppauge PVR 150 capture card. I would like to
> capture HD video (which implies a new capture card - which one?) and
> this platform does not play well (if at all) HD videos - at best they
> are jerky.
I have an HDHomeRun and HD-PVR. I prefer the HDHomeRun because it has
generally been rock-solid reliable, and can be located anywhere in
relation to the machine; and gives you two tuners at an attractive
price point. Unfortunately, it only works for Clear QAM channels. My
HD-PVR crashes every few days (until the latest firmware the HD-PVR
itself would lock up, now it is causing a kernel BUG on 9.10). Both
of them capture with excellent quality (the HDHomeRun captures the
MPEG off-the-cable without any encoding, so its quality is as good as
it gets).

>   Will getting a multicore box help here?
It will be useful if nothing else so that you have an additional CPU
for commercial flagging.

I currently have a separate FE from BE (I use an Aspire Revo for the
FE); and am not sure what I think about the setup. One of the
disadvantages is that I'll need to upgrade both machines in unison.

Charles
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torres.diego at ttcpl

Sep 6, 2010, 2:12 PM

Post #5 of 7 (453 views)
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Re: Hardware for MythTV [In reply to]

Multicore will rock if you ever decide to trancode or export to a
mobile device.

Sent from my iPhone

On 07/09/2010, at 4:06 AM, Charles Wright <cpwright [at] gmail> wrote:

> On Mon, Sep 6, 2010 at 11:00 AM, JCA <1.41421 [at] gmail> wrote:
>> After a couple of years with MythTV 0.20 I am about to embark in a
>> full upgrade - not only MythTV but also the Linux box running it.
>> What
>> kind of specs should my new box aim to meet? My current box is built
>> around a Pentium 4 at 3 GHz, with 1 GB of memory, an Nvidia FX 5200
>> video card and a Hauppauge PVR 150 capture card. I would like to
>> capture HD video (which implies a new capture card - which one?) and
>> this platform does not play well (if at all) HD videos - at best they
>> are jerky.
> I have an HDHomeRun and HD-PVR. I prefer the HDHomeRun because it has
> generally been rock-solid reliable, and can be located anywhere in
> relation to the machine; and gives you two tuners at an attractive
> price point. Unfortunately, it only works for Clear QAM channels. My
> HD-PVR crashes every few days (until the latest firmware the HD-PVR
> itself would lock up, now it is causing a kernel BUG on 9.10). Both
> of them capture with excellent quality (the HDHomeRun captures the
> MPEG off-the-cable without any encoding, so its quality is as good as
> it gets).
>
>> Will getting a multicore box help here?
> It will be useful if nothing else so that you have an additional CPU
> for commercial flagging.
>
> I currently have a separate FE from BE (I use an Aspire Revo for the
> FE); and am not sure what I think about the setup. One of the
> disadvantages is that I'll need to upgrade both machines in unison.
>
> Charles
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
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torres.diego at ttcpl

Sep 6, 2010, 2:37 PM

Post #6 of 7 (452 views)
Permalink
Re: Hardware for MythTV [In reply to]

>
> Think about if you want to use your main machine, or dedicated BE if
> you go that route, as anything else, like a household
> NAS server, and how much disk capacity you might need. If you want
> to run VMs on this machine, take that into
> consideration as well.
>
> I believe in the "central machine" concept, but others like the
> separate small low-power boxes approach. It's up to you,
> and highly dependent on your needs and budget.


I too suggest you think about a barebones vm server. Gives you the
ability to run as many machines as you want, try new things, revert
upgrades or upgrade the actual server without disturbing anything.

I used to have a separate low power box for firewall, asterisk and
myth BE. Between the sw and hw upgrades it was a nightmare . With the
new setup I can upgrade to a whole new physical machine within a
couple of hours most of which is copying the vms.

You can start with an "entry level" server and then upgrade. I started
with a $700 (aud) 1.6 ghz dualcore with 1 gb ram and 320 gb hdd.



Diego
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beww at beww

Sep 6, 2010, 2:49 PM

Post #7 of 7 (459 views)
Permalink
Re: Hardware for MythTV [In reply to]

On Monday, September 06, 2010 03:37:35 pm Diego Torres wrote:
> > Think about if you want to use your main machine, or dedicated BE if
> > you go that route, as anything else, like a household
> > NAS server, and how much disk capacity you might need. If you want
> > to run VMs on this machine, take that into
> > consideration as well.
> >
> > I believe in the "central machine" concept, but others like the
> > separate small low-power boxes approach. It's up to you,
> > and highly dependent on your needs and budget.
>
> I too suggest you think about a barebones vm server. Gives you the
> ability to run as many machines as you want, try new things, revert
> upgrades or upgrade the actual server without disturbing anything.
>
> I used to have a separate low power box for firewall, asterisk and
> myth BE. Between the sw and hw upgrades it was a nightmare . With the
> new setup I can upgrade to a whole new physical machine within a
> couple of hours most of which is copying the vms.
>
> You can start with an "entry level" server and then upgrade. I started
> with a $700 (aud) 1.6 ghz dualcore with 1 gb ram and 320 gb hdd.
>

Indeed, you can run a Myth B/E on the bare iron, so you can have PCI and USB capture devices, and run as many VMs as you
like. You could install a graphics card and have it be a combo BE/FE, but most people prefer such machines to not be in
the living room (mine's in the garage), so you could have a frontend or two in your living spaces.

Older servers, Opterons or Xeons, can be had pretty cheaply these days, and they are more than up to the tasks most of us
require. If you plan to use it as a F/E, make sure it has a PCI-Express slot in it, as opposed to PCI-X.

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