General jerky playback!

My old laptop was stolen it had a dvd-rw.

The insurance company replaced it with a new laptop with a cd-rw/dvd-r combi (in error) but paid for an upgrade to a dvd-rw.

Before I had the dvd-rw fitted all video formats played fine - since the dvd-rw was fitted they are all (avi,mpg,wmv etc) jerky - the player used seems to make no difference - neither does the source - dvd/cd, hard drive or my big LaCie drive.

My codecs are a complete mess - I downloaded loads in an effort to get one particular video to play.

Help - where do I start?

Tony

 

Check your DMA settings. Make sure they are on.

http://forums.afterdawn.com/thread_view.cfm/260038

 

dowmload k-lite codec pack it should sort out your codecs

 

My screensaver clicked in whilst I was running a file comparison - it too was 'jerky' and seemed to always 'stutter' when the disc light flashed - does this point to a more basic system problem?

Tony

 

if you are running xp hit cntrl-alt-del and give me cpu ussage at idle and number of processes runing

 

At idle my CPU% is zero and I have 51 processes.

I've also tried this in Safe Mode - when I have CPU% and 14 processes - but I still get jerky playback even in Safe Mode!

Tony

 

Check for an updated graphics driver
was any extra software installed when they changed the rom
check your bios the size of your video ram may be adjustable
it should be under warranty take it back to the supplier if simple things dont work

 

Will the DMA stuff mentioned above be applicable to all media playback - even from my hard disk or LaCie disk?

I've updated my driver from version 4291 to 4497.

Still get jerky playback.

How do I update my bios video ram size.

Graphics is a Mobile Intel 915GM/GMS, 910 GML EXPRESS CHIPSET

tONY

 

I've already downloaded K-lite!

Tony

 

When I'm playing media on an otherwise idle system should my cpu %age be all over the place - it does seem that the stutter happens when my cpu% shoots up from 7% to 30-90+%?

Tony

 

dma will efect roms and hdd but not your external
video ram size sometimes can be adjusted in your computers bios check your manual for the prcedure

what is the brand model and specs of your laptop

 

Thanks for being so helpful!

TravelMate 4152LCi

Pentium M740 (2mb L2 cache, 1.73 ghz, 533mhz FSB)

You already know the Graphics setup (see thread above)

60gb hdd

Original had a DVD/CD-RW combi - upgraded to a DVD-RW/CD-RW

512MB DDR2 (support dual channel)

Tony

 

PS both Adaware spyware and Norton Antivirus are clean!

 

I'm now fairly certain it's a general system problem - even animated gifs are 'jerky'.

Tony