[mythtv-users] Hardware Woes

[Robert Denier]

The only obvious thing that comes to mind is to check that any hard
drives that are involved in streaming are actually using dma.  I.E.

hdparm /dev/hda

Beyond that, in no particular order...
1) Are you running a good video card driver?  (Perhaps a binary driver
from your hardware vendor?)
2) Is your kernel configured for preemption?  Sometimes that can help,
and occasionally, it can even hurt, but the second is mostly due to some
other buggy driver.
3) There are options to use DRI(sp?) [Direct Rendering] and such for
video cards.  I've never been ambitious enough to get them working as I
haven't had the need, but with hdtv you might have the need.  I believe
that also requires some kernel configuration. 
4) Are program versions actually compiled with support for the P4?
Things run a bit faster if programs use all the processors native
instructions rather than say only those that would work on a generic
686.  I tend to doubt this is the cause of your problem though.

Good luck,
-Robert



On Fri, 2005-10-28 at 15:58 -0700, Gregg wrote:
> I recently upgraded my motherboard and processor from a p4 1.6 to a p4
> 3.0 and asus p4r800-v deluxe. It seems that hdtv stutters more than it
> did on the 1.6.  I was able to watch it on the 1.6 without stutter
> unless I fast forwarded it.  Should I upgrade the kernel to an SNMP
> version?  I used Jarods Guide to originally install mythtv. I am
> currently running 2.6.11-1.14_FC3, 512mb ram p4
> 3.0ghz,pchdtv3000,pvr250, fx5200, and 120gig hd.
> 
> Any suggestions are greatly appriciated.
> 
> -Gregg
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