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Windows 7: jerky video


18 May 2010   #1

windows 7 home premium
 
 
jerky video

Suddenly, my video playback is jerky. I've got an i7 processor and 9gb of RAM.

Yes, I know I can restore a prior version of the OS, but I'd really like to find out what is going on and fix it directly.

The sound suffers no interruptions, but the video hangs. The hang happens on a fairly regular basis (7 seconds or so), so I suspect some process is running, grabbing everything, and then releasing it.

The problem is not time of day dependent. And, my entire setup NEVER had this problem before - even with a slower machine.

Please suggest tools I might use to ID the problem; or settings I might play with to see if that helps.

My System SpecsSystem Spec
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18 May 2010   #2

Windows 8 Pro
 
 

Can you fill out more of your specs for us to get an idea on what's going on?
My System SpecsSystem Spec
18 May 2010   #3

Windows 8 Pro
 
 

I also suggest downloading and running this tool. Give the page a good read too.
DPC Latency Checker
My System SpecsSystem Spec
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18 May 2010   #4

Win7 HP (x64)/Win7 Ultimate (x64)
 
 

Have you updated your video card drivers?
Try the basics - update your drivers (mobo, add-on cards etc), install the latest DirectX version

Hope this helps
Regards
My System SpecsSystem Spec
18 May 2010   #5

 

since you yourself thought of hidden process working behind .might post a snip of task manager process when you play a video
My System SpecsSystem Spec
18 May 2010   #6

windows 7 home premium
 
 

I loaded a new driver for the graphics card - no change.

I watched task manager and noticed that the nature of the video hang closely matched the refresh speed of the Task Manager. When TM was refreshing FAST, the delay was short. When TM was refreshing MEDIUM, the delay was longer. I also noticed that when the video hung, TM refresh hung too. This was obvious only when refresh speed was fast. I couldn't tell when TM was medium.

I then realized I hadn't tried a different browser. I had been using Firefox and when I switched to Chrome - no hesitation - so far.....

....But, as soon as I posted this, I got hesitation (worse than ever) in Chrome.
My System SpecsSystem Spec
18 May 2010   #7
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Uninstall your Adobe Flash player and download a new one.
My System SpecsSystem Spec
18 May 2010   #8

windows 7 home premium
 
 

New Flash Player download might have done it. Can't be sure for a while, but a short test ran without a problem.
My System SpecsSystem Spec
18 May 2010   #9
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Quote   Quote: Originally Posted by Newmarket2 View Post
New Flash Player download might have done it. Can't be sure for a while, but a short test ran without a problem.
Good, keep us posted. This may be a valid tip for the future.
My System SpecsSystem Spec
19 Feb 2011   #10

windows 7 home premium
 
 

The problem remains.
I think it's my ISP. In this rented Florida apartment, you pay $35/month for a 1mbs link.
Just doing basic browsing, everything is snappy and then, every so often web access becomes non-responsive. If I hit refresh every 3 seconds, it's easy to see the recovery of the service - getting further every time.
Then, everything is zippy until the next choke.
For streaming videos, it's a bit a function of the player. I watch TV from ABC, NBC, CBS, Fox and via Xfinity. They all jerk a bit, some more than others, and each somewhat consistently.
During prime time, they also will stop dead (less frequently) requiring me to refresh the page and sit through another 2-4 minutes of commercials to get back to where I left off (Xfinity does return me relatively quickly and automatically to the RESUME location)
So, maybe it's not my laptop after all.
BTW, I never ran the Latency Checker suggested by Electrotune, but I did just mark the link and will read it at some point.
My System SpecsSystem Spec
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 jerky video




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