2 issues: Jerky display from DVD, video out to TV is ugly

[johnson12]

2 issues:

1 The playback from the DVD is jerky on the monitor and on the TV.
Any ideas?

2 I am using a VCR to get the video signal to the TV; Copy protection is
annoying.
Any fixes?



AMD k6-2 500
128meg ram

G450 eTV
Sony DDU1621 DVD


J

[Kruzin]

The fisrt thing I'd check into for the jerkyness is that your DVD drive is the primary device on the secondary IDE channel, and that DMA is enabled for it in your device manager.

As far as the marovision protection, check out the Desktop Video forum...it's a regular topic over there...

[Wombat]

What is your CPU usage like? What OS is this?

[The PIT]

Well on my Acrap KT133R I had to go into bios disable the auto detect and install the dvd player onto the primary channel as a master. On the secondary I got noise and stuttering.
Solved it by buying a Promise controller and ditching the onboard ide control.
Try disabling the autodetect in the Bios.

[Maggi]

to me this looks like a CPU problem ... what was Matrox' recommendation for fluid DVD playback again ?

I remember that DVDs ran smooth on my OCed Cel300A @ 450MHz, but CPU usage hovered between 70-85% or something like that and I used a SCSI DVD, whereas IDE drives eat up additional CPU power.

[Wombat]

That's why I asked about CPU usage. That should be right on the borderline. The K6-2 didn't have the FPU power of the Celeron, so he's right on the edge.

[johnson12]

Thank you for your responses.

The stuttering/jerkiness is consistent, not sporadic.

I am using WinDVD and the Matrox player; same effect.

Not sure about CPU use. Except: No backrground tasks.

Yesterday, once, when I started WinDVD a dialog informed that DMA was not set for the DVD player.

It was checked: I had looked for this possible solution earlier.

So I unchecked it, rebooted, checked it, rebooted.

Have not seen that dialog again.

But I am thinking that DMA is not working properly.
Any way to check this?

More to learn.


AMD k6-2 500
128meg ram
G450 eTV
Sony DDU1621 DVD
J-Mark board with ALI chipset

J

[Wombat]

CPU usage: There's a program called WinTop, provided by MS, you can find it in the "power toys" or somewhere else.

Once again, what OS?

What does the Matrox Diagnostic say?

[johnson12]

Thank you for your responses.


Ran the diags: RMA person says the card is fine.

I am using WinDVD and the Matrox player; same effect.

No backrground tasks.

Once, when I started WinDVD a dialog informed that DMA was not set for the DVD player.

It was checked: I had looked for this possible solution earlier.

So I unchecked it, rebooted, checked it, rebooted.

Have not seen that dialog again.

But I am thinking that DMA is not working properly. Any way to check this?


Win98se (IE 6.1, dirextx8.1, MS Media player 7.1)
J-Mark j-542b MB with ALI chipset (j-mark.com)
(Most current chipset drivers, bios.)
AMD k6-2 500
128meg ram
Western Digital 10 gig drive on Primary IDE: master
Sony DDU1621 DVD on Secondary IDE: master

G450 eTV
Gateway monitor set at 800x600

No programs are running in the background.
(No antivirus,.... basic, and clean)
Not connected to a network.
No modem.

DMA is checked for the DVD player.
But, I do not know if it is actually working. I was hoping the DIAG program would provide some info. But the data is in code.


Have not had time to find a cpu monitor.

J

[tr4veler]

I'd guess you're right about the DMA not working right... but don't expect magic. I've got a K6-3+ @550 SCSI HD/DVD on a ASUS P5A (ali alladin5) and I still get jerks in high motion areas bad enough my wife doesn't like me using it as a DVD player.

You might try searching around ArsTechnica/storage review for a DMA fix.

You do have the latest bios/drivers for your board right?

Oh yea..
this is "system too slow" jerks and not "24fps catching up to 60hz" jerks right ?

[johnson12]

Working on verifying all updated drivers and applying other suggestiongs.


>Oh yea..
this is "system too slow" jerks and not "24fps catching up to 60hz" jerks right ?

I am too new to this to know the difference.
How can I tell which is which?

J