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

[Steven Adeff]

On 9/11/06, Brad DerManouelian <myth at dermanouelian.com> wrote:
> 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.

I've yet to pay more than $100 for an AMD64 motherboard and they have
all worked fine. The concept of "best I can afford" is a concept that
doesn't hold water. It's like buying a 2001 Mercedes and then when you
start to have electrical problems exclaim "but I purchased the best
that I could afford!" while your neighbor's 2001 Lexus runs fine.

Let's hope moving the slot the card is in fixes the problem.

-- 
Steve
Before you ask, read the FAQ!
http://www.mythtv.org/wiki/index.php/Frequently_Asked_Questions
then search the Wiki, and this list,
http://www.gossamer-threads.com/lists/mythtv/
Mailinglist etiquette -
http://www.mythtv.org/wiki/index.php/Mailing_List_etiquette