[mythtv-users] stutter while recording two programs at once

Brad DerManouelian myth at dermanouelian.com
Mon Sep 11 14:56:46 UTC 2006


On Sep 11, 2006, at 7:32 AM, Steven Adeff wrote:

> On 9/11/06, Brad DerManouelian <myth at dermanouelian.com> wrote:
>> On Sep 11, 2006, at 5:31 AM, Steven Adeff wrote:
>>> On 9/10/06, Brad DerManouelian <myth at dermanouelian.com> wrote:
>>>> On Aug 29, 2006, at 6:43 PM, Judd Tracy wrote:
>>>>> Try taking a look at this:
>>>>> http://www.mythtv.org/wiki/index.php/PCI_Latency
>>>>>
>>>>> Judd
>>>>
>>>> /sbin/lspci -v
>>>> tells me:
>>>> 00:07.0 IDE interface: nVidia Corporation CK804 Serial ATA  
>>>> Controller
>>>> (rev f3) (prog-if 85 [Master SecO
>>>> PriO])
>>>>          Subsystem: ASUSTeK Computer Inc.: Unknown device 815a
>>>>          Flags: bus master, 66Mhz, fast devsel, latency 0, IRQ 225
>>>>          I/O ports at 09f0 [size=8]
>>>>          I/O ports at 0bf0 [size=4]
>>>>          I/O ports at 0970 [size=8]
>>>>          I/O ports at 0b70 [size=4]
>>>>          I/O ports at d800 [size=16]
>>>>          Memory at ad002000 (32-bit, non-prefetchable) [size=4K]
>>>>          Capabilities: <available only to root>
>>>>
>>>> 00:08.0 IDE interface: nVidia Corporation CK804 Serial ATA  
>>>> Controller
>>>> (rev f3) (prog-if 85 [Master SecO
>>>> PriO])
>>>>          Subsystem: ASUSTeK Computer Inc. K8N4-E Mainboard
>>>>          Flags: bus master, 66Mhz, fast devsel, latency 0, IRQ 233
>>>>          I/O ports at 09e0 [size=8]
>>>>          I/O ports at 0be0 [size=4]
>>>>          I/O ports at 0960 [size=8]
>>>>          I/O ports at 0b60 [size=4]
>>>>          I/O ports at c400 [size=16]
>>>>          Memory at ad001000 (32-bit, non-prefetchable) [size=4K]
>>>>          Capabilities: <available only to root>
>>>>
>>>> So I did this:
>>>> [mythtv at mythtv ~]$ sudo /sbin/setpci -v -s 00:07.0 latency_timer=b0
>>>> 00:07.0:0d b0
>>>> [mythtv at mythtv ~]$ sudo /sbin/setpci -v -s 00:08.0 latency_timer=b0
>>>> 00:08.0:0d b0
>>>>
>>>> But /sbin/lspci -v still tells me latency 0 for both devices.
>>>>
>>>> I feel dumb that I can't read directions and get this to work how I
>>>> think it will work.
>>>
>>> My PATA/SATA interfaces are also set to latency=0. My onboard  
>>> SATA is
>>> set to 0 and I can't change it, but my PCI PATA card default sets to
>>> 32, which causes all sorts of problems, so I force the PATA card  
>>> to 0
>>> as part of my mythbackend startup script (they control my RAID10
>>> recordings array). I've not noticed any issues with this.
>>
>> My PATA device is also set to 0. Unfortunately it is causing major
>> issues for me. I feel like I made a big mistake in buying AMD64. I've
>> thrown about $3500 into this box in hopes that I would be ahead of
>> the game and not experience the issues of lower-end hardware. Seems
>> like there's no winning.
>
> It has nothing to do with AMD64. I've got 3 AMD64 systems all running
> MythTV without problems.

I'm saying it's a problem with my $200 motherboard which is AMD64. If  
I had gone intel I probably wouldn't have the issue with this  
motherboard. I also cannot get LCDproc to compile. Their website says  
it won't work and I'm out of luck. I'm sure you can understand my  
frustration with putting the money and effort into the "best I can  
afford" and coming up with stuff that simply doesn't work.


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