[mythtv-users] Running Dual pcHDTV cards

[Brent Bolin]

On Tue, Feb 8, 2011 at 11:09 AM, Ben Kamen <bkamen at benjammin.net> wrote:
> I've been mostly running my system with one of the cards not configured in
> the system for Myth.
>
> I recently added it in and now when the system records 2 shows, it seems to
> record one card's channels just fine (I think) while the other show is a
> blocky mess of broken audio. I wasn't watching TV while these recorded.
>
> My System is a Pentium 4 HT (3GHz) with 2GB of memory.
> nVidia GeForce FX5200
> (3) HDisks, sda=300GB, sdb=250GB, sdc=250GB, sdd=dvd-rom
>
> 01:00.0 VGA compatible controller: nVidia Corporation NV34 [GeForce FX 5200]
> (rev a1)
> 02:02.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
> RTL-8139/8139C/8139C+ (rev 10)
> 02:04.0 Multimedia video controller: Internext Compression Inc iTVC15 MPEG-2
> Encoder (rev 01)
> 02:05.0 Multimedia video controller: Conexant Systems, Inc. CX23880/1/2/3
> PCI Video and Audio Decoder (rev 05)
> 02:05.1 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3 PCI
> Video and Audio Decoder [Audio Port] (rev 05)
> 02:05.2 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3 PCI
> Video and Audio Decoder [MPEG Port] (rev 05)
> 02:05.4 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3 PCI
> Video and Audio Decoder [IR Port] (rev 05)
> 02:06.0 Multimedia video controller: Conexant Systems, Inc. CX23880/1/2/3
> PCI Video and Audio Decoder (rev 05)
> 02:06.2 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3 PCI
> Video and Audio Decoder [MPEG Port] (rev 05)
>
> I do have UDEV set to assign the cards to the same /dev/ locations every
> time.
>
> I'm wondering if this system is too slow to record 2 HDtv streams. (they are
> OTA stations in HD over comcast cable)
> Hard disk bog? CPU Slog? Video Card Conflict?
>
> What's a good test besides just setting up to record two shows and watching
> "top"?
>
>  -Ben
>
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>

I have (2) pcHD5500's and (2) DvicoFusion7 tuners

Multimedia video controller: Conexant Systems, Inc. CX23885 PCI Video
and Audio Decoder (rev 03)

Multimedia video controller: Conexant Systems, Inc. CX23885 PCI Video
and Audio Decoder (rev 03)

05:06.0 Multimedia video controller: Conexant Systems, Inc.
CX23880/1/2/3 PCI Video and Audio Decoder (rev 05)
05:06.1 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3
PCI Video and Audio Decoder [Audio Port] (rev 05)
05:06.2 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3
PCI Video and Audio Decoder [MPEG Port] (rev 05)
05:06.4 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3
PCI Video and Audio Decoder [IR Port] (rev 05)

05:07.0 Multimedia video controller: Conexant Systems, Inc.
CX23880/1/2/3 PCI Video and Audio Decoder (rev 05)
05:07.1 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3
PCI Video and Audio Decoder [Audio Port] (rev 05)
05:07.2 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3
PCI Video and Audio Decoder [MPEG Port] (rev 05)
05:07.4 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3
PCI Video and Audio Decoder [IR Port] (rev 05)


Using them strictly for OTA(antenna) HD recordings. Dedicated back
end.  Often have 6 HD recordings running at the same time.

Originally had them running on an AMD Phenom II Dual 3GHz.  Now
running on AMD Phenom II Quad 3.2Ghz

Is this running as back end only?  2GB RAM seems pretty low.

Release: 10.04
Codename: lucid

Mythtv backend .24+fixes