On 12/9/05, John P Poet <[EMAIL PROTECTED]
> wrote:
Thanks for all the replies, they give me some idea of what is possible- if capture of 4 HD streams is possible, then I'd think the 17gb/hr that the 3xhauppauge + the DViCO are writing to disk when recording 1080i should be pretty easily attainable.
Currently, I've got the 2 tuners of the 500 as 1 and 2, the pvr-350 as 3 and the fusionHDTV 5 lite as #4. I only see issues when the pvr-350 and the fusionHDTV 5 lite are both capturing... If I have all 4 tuners capturing- which will give me recording corruption on the fusionHDTV5 lite, and then systematically stop recording on any of the other tuners, only the PVR-350 makes a difference, and stopping capture by this tuner will clear up the fusionHDTV capture, irregardless of what the pvr-500 is doing.
Relevant bits of lspci -v indicate that the 350 and the fusionHDTV 5 lite are not sharing and IRQ, so that's not an issue...
01:0a.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11)
Subsystem: DViCO Corporation DViCO FusionHDTV5 Lite
Flags: bus master, medium devsel, latency 32, IRQ 11
Memory at e4000000 (32-bit, prefetchable) [size=4K]
Capabilities: [44] Vital Product Data
Capabilities: [4c] Power Management version 2
01:0a.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)
Subsystem: DViCO Corporation DViCO FusionHDTV5 Lite
Flags: bus master, medium devsel, latency 32, IRQ 11
Memory at e4001000 (32-bit, prefetchable) [size=4K]
Capabilities: [44] Vital Product Data
Capabilities: [4c] Power Management version 2
01:0b.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
Subsystem: Realtek Semiconductor Co., Ltd. RT8139
Flags: bus master, medium devsel, latency 32, IRQ 5
I/O ports at d000 [size=256]
Memory at ea010000 (32-bit, non-prefetchable) [size=256]
[virtual] Expansion ROM at e4010000 [disabled] [size=64K]
Capabilities: [50] Power Management version 2
02:08.0 Multimedia video controller: Internext Compression Inc iTVC16 (CX23416) MPEG-2 Encoder (rev 01)
Subsystem: Hauppauge computer works Inc.: Unknown device e807
Flags: bus master, medium devsel, latency 64, IRQ 9
Memory at dc000000 (32-bit, prefetchable) [size=64M]
Capabilities: [44] Power Management version 2
02:09.0 Multimedia video controller: Internext Compression Inc iTVC16 (CX23416) MPEG-2 Encoder (rev 01)
Subsystem: Hauppauge computer works Inc.: Unknown device e817
Flags: bus master, medium devsel, latency 64, IRQ 11
Memory at e0000000 (32-bit, prefetchable) [size=64M]
Capabilities: [44] Power Management version 2
If I get a chance to switch some cards/slots around tomorrow, I'll see if it makes any difference, but from lspci, it appears that the PVR-350 is sharing with tuner 1 of the PVR-500 and the fusionHDTV 5 lite is sharing with tuner 2 of the PVR-500. I've got to re-do the experiment and go to the logs to see what's going on, but my wife wanted to catch up on a few days of unwatched shows, so the system was in use all evening... If anyone has ideas, I'm open to suggestions. Thanks,
Mike
On 12/9/05, mrwester <[EMAIL PROTECTED]> wrote:
> Hi-
> My mythtv system has 1xPVR-350, 1xPVR-500 using ivtv 0.4, and a newly added
> DViCO FusionHDTV 5 Lite using DVB drivers. 1x200GB seagate+1x300GB seagate
> HD LVM with XFS for /video and 1x40GB seagate for FC4 OS. I have DMA
> enabled. DVI out via fx5200 at 1280x768. Chaintech nforce2 mobo, AMD2900
> with 1gb ram. All 4 tuners can capture on their own with no problems. I
> can capture with all 3 Hauppauge tuners at the same time no problems.
> Trying to capture HDTV while capturing with the Hauppuge cards results in
> normal analog recordings but the digital recording has dropouts and
> scrambled bars across it. I need to double check if capturing digital NTSC
> with the DViCO card also has the dropouts when one or more PVR cards are in
> use.
>
> I'm new to the HDTV part of mythtv and looking for feedback to tell me if
> what I'm trying to do is realistic or not. And if it is realistic, where
> should I look to troubleshoot. Thanks for any insight.
>
> Mike
I have four HD-3000 cards writing to a 5 disk software RAID5 formatted
as XFS. I can record on all four cards simultaneously without any
problem. I do *not* use LVM -- which I believe adds some overhead.
Software raid5 on a 3GHz Pentium 4 system results in very good disk
throughput.
As a test, I tried turning OFF hyperthreading on my 3.0GHz P4, and
started having problems recording more than two HD programs at a time.
Don't know how Athlons perform, but HT is a win for Pentiums.
Another datapoint - My raid5 had to rebuild one of the disks. During
this rebuild, I could still record one HD stream without a problem,
but two resulted in a LOT of corruption, and a lot of messages about
it taking a LONG time to get data from the HD tuner card.
I noticed that Daniel add a ringbuffer into myth's DVB processing
today, so that should help any system which is marginal.
Don't know if any of this helps you, but thought it might...
Thanks for all the replies, they give me some idea of what is possible- if capture of 4 HD streams is possible, then I'd think the 17gb/hr that the 3xhauppauge + the DViCO are writing to disk when recording 1080i should be pretty easily attainable.
Currently, I've got the 2 tuners of the 500 as 1 and 2, the pvr-350 as 3 and the fusionHDTV 5 lite as #4. I only see issues when the pvr-350 and the fusionHDTV 5 lite are both capturing... If I have all 4 tuners capturing- which will give me recording corruption on the fusionHDTV5 lite, and then systematically stop recording on any of the other tuners, only the PVR-350 makes a difference, and stopping capture by this tuner will clear up the fusionHDTV capture, irregardless of what the pvr-500 is doing.
Relevant bits of lspci -v indicate that the 350 and the fusionHDTV 5 lite are not sharing and IRQ, so that's not an issue...
01:0a.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11)
Subsystem: DViCO Corporation DViCO FusionHDTV5 Lite
Flags: bus master, medium devsel, latency 32, IRQ 11
Memory at e4000000 (32-bit, prefetchable) [size=4K]
Capabilities: [44] Vital Product Data
Capabilities: [4c] Power Management version 2
01:0a.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)
Subsystem: DViCO Corporation DViCO FusionHDTV5 Lite
Flags: bus master, medium devsel, latency 32, IRQ 11
Memory at e4001000 (32-bit, prefetchable) [size=4K]
Capabilities: [44] Vital Product Data
Capabilities: [4c] Power Management version 2
01:0b.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
Subsystem: Realtek Semiconductor Co., Ltd. RT8139
Flags: bus master, medium devsel, latency 32, IRQ 5
I/O ports at d000 [size=256]
Memory at ea010000 (32-bit, non-prefetchable) [size=256]
[virtual] Expansion ROM at e4010000 [disabled] [size=64K]
Capabilities: [50] Power Management version 2
02:08.0 Multimedia video controller: Internext Compression Inc iTVC16 (CX23416) MPEG-2 Encoder (rev 01)
Subsystem: Hauppauge computer works Inc.: Unknown device e807
Flags: bus master, medium devsel, latency 64, IRQ 9
Memory at dc000000 (32-bit, prefetchable) [size=64M]
Capabilities: [44] Power Management version 2
02:09.0 Multimedia video controller: Internext Compression Inc iTVC16 (CX23416) MPEG-2 Encoder (rev 01)
Subsystem: Hauppauge computer works Inc.: Unknown device e817
Flags: bus master, medium devsel, latency 64, IRQ 11
Memory at e0000000 (32-bit, prefetchable) [size=64M]
Capabilities: [44] Power Management version 2
If I get a chance to switch some cards/slots around tomorrow, I'll see if it makes any difference, but from lspci, it appears that the PVR-350 is sharing with tuner 1 of the PVR-500 and the fusionHDTV 5 lite is sharing with tuner 2 of the PVR-500. I've got to re-do the experiment and go to the logs to see what's going on, but my wife wanted to catch up on a few days of unwatched shows, so the system was in use all evening... If anyone has ideas, I'm open to suggestions. Thanks,
Mike
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