Re: Choppy TV

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On one of my machines CPU is usually at around 15-30% for live TV, but as I
said, I've had the same problem using several machines, processor types, and
mainboards.

I don't "usually" change PCI Slots, but in troubleshooting the tuners, I
have swapped out the slots, on my newest machine I'm in the midst of
building, there is only 1 PCI slot to begin with, I have a PCI riser that
expands it to 3, but I don't use it.

Display config varies, from a 46" plasma running 1080p, to a 22" monitor
that I've tried MANY resolutions from 800x600 to 1600x1050 using DVI, or
HDMI, and component video. With the older video cards I run single display,
just because Vista on the whole runs smoother with a single display for me.

Bios is always updated before I even finish building a computer, and I
haven't mucked about with my MPEG2 decoder since using Media Center 2004. I
only have 1 machine that doesn't run a standard decoder setup, and that's
only because it's also where I ripped my entire DVD library to, and with 8
terabytes of storage, it's running a little "different"

Thanks for your help JW, you're trying to troubleshoot a single machine, I'm
of the opinion that there's something else at work here, considering the
number of different PC's, hardware types, and processor speeds, I should have
had at least 1 work so far!

"JW" wrote:

What is your normal CPU utilization when watching live TV with only one
tuner in use?
What is your display configuration? What resolution over what interfaces?
Is your MOBO bios at the latest level?
Have you tried changing the slots used by your tuner?
It is strange that the only configuration that does not stutter is recorded
TV in windowed mode and neither recorded or live TV in full screen mode.
I repeat my question about what decoder are you using? If not the Vista
included MS MPEG2 decoder what decoder options do you have selected?
Do you have Aero enabled?

"ItsColdOutside" <ItsColdOutside@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:76F045E8-54D1-4DC3-834F-99E73E6284A4@xxxxxxxxxxxxxxxx
As far as running programs in the background, my test machine is empty of
all
applications with the exception of anti-virus software, which a few
format/reloads ago, I even started removing after the initial setup was
done,
and I unplugged it from the network. So only Vista standard processes are
running at any given time.
I believe the tally is 48 processes after boot.

"JW" wrote:

is there any other process running that is performing a lot of disk I/O
or
other activity such as network activity or indexing?
What make/model graphics card are you using?
Is the audio also choppy?
I did not want you to rewind to the beginning since that would empty all
current data out of your disk cache. I just wanted you to pause for a
minute or two in order that you would be running the live TV out of disk
cache and not have to be reading from the disk.
What make/model tuner card do you have?
Are you using the Vista provided default decoder?
"ItsColdOutside" <ItsColdOutside@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in
message
news:DA67C523-95D3-4926-BE63-4BB02281CE5F@xxxxxxxxxxxxxxxx
Nothing is sharing the IRQ's, disk caching is enabled, and if I rewind,
it
stays choppy, its only slightly better if I watch a program that has
finished
recording completely.

"JW" wrote:

Check to make sure that you have disk caching and and dma disk
transfers
enabled.
If you pause live TV for about a minute and then play it is it still
choppy?
Also check to be sure that your tuner card and either your graphics
card
or
sound card are not sharing the same IRQ.
"ItsColdOutside" <ItsColdOutside@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in
message
news:D53C3240-287D-48A2-8A6D-AD2C3472C094@xxxxxxxxxxxxxxxx
Hey all, just a brief problem.
I run several media PCs, some pre-built, some I've built, all run
amazingly
well using XP MCE without issue. My problem, would be that I'm in
the
process of upgrading most of them, and building another media pc for
a
new
home theater system, using Vista x32 as the new platform. I've been
"testing" configurations on one PC to start with, and all of them
have
the
same problem so far.

When watching live TV, there is a slight stutter in the video.
Fractions
of
seconds, the video pauses, and then has a few fast-frames to catch
up
to
the
audio, that never misses a beat. I've used multiple TV tuners, a
few
different processors from a 2.8GHz P4, to the newest Intel Quad
Core.
It
happens on ALL video resolutions, and happens "slightly" less on
recorded
TV,
than live. DVD playback is fine, DivX is fine, it's only TV. The
only
thing
that has effected any kind of bonus so far, is the hard drives,
running
a
single drive, it's most "choppy", with two drives, it's quite a bit
smoother,
but still noticable. The only "odd" thing, would be that recorded
TV
is
perfectly smooth in windowed mode, but not live TV.

I first encountered this "bug" in the Vista Beta, but had long since
hoped
it would be fixed. Anyone have some ideas out there?




.



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