Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


75 posts

Master Geek
+1 received by user: 4


Topic # 67439 1-Sep-2010 20:56
Send private message

Hi - we were burgled recently which was a complete pain in the arse, other than we got 2 new laptops out of it (oh and an alarm system!).

One of ones stolen was a Dell from about 2004/5, and it was replaced by a lead- in Compaq worth about $900, and the other was a Dell from 2008 and it was replaced by a Dell Inspirion 15r i3.

My question is (and excuse me if it is a thick one), when i hook the Compaq up to the Panasonic Plasma 42inch Full HDTV, the initial display in the top left says 1080p/60Hz, but when i hook the Dell up it says 1080p/24Hz, both are connected using the same HDMI cable.

What is the difference and why the difference?

Thanks

Create new topic
21533 posts

Uber Geek
+1 received by user: 4387

Trusted
Subscriber

  Reply # 375514 1-Sep-2010 21:57
Send private message

the difference is 36Hz

It is because of the refresh rate you have chosen in display properties. 24Hz is only really any good for watching deinterlaced film stuff like blu ray and downloaded dvd rip divx's, and possibly dvd content that your display card can deinterlace.




Richard rich.ms



75 posts

Master Geek
+1 received by user: 4


  Reply # 375900 2-Sep-2010 17:46
Send private message

Ha thanks. yep i can subtract 24 from 60...

I can't seem to find a control panel anyway to change it, I guess an AVI file (downloaded movie) is going to be better at 60hz thann 24hz?

21533 posts

Uber Geek
+1 received by user: 4387

Trusted
Subscriber

  Reply # 376065 3-Sep-2010 03:38
Send private message

Its in the display properties, same place you change refresh rate on a normal monitor worked everytime I tried it on a TV.

depends on the source, look at the AVI framerate - if its 24 then setting it to 24 can let the tv work its 100Hz voodoo magic on the picture better than having the PC try to change it to 60 and then have the tv work from that.

If its a video sourced thing that has been deinterlaced when encoded and has a 30FPS rate, then it will look real bad on 24Hz, 60 is the way to go.

For the odd NZ TV rip you may download in PAL at 25Hz, then you want 50Hz to stop it having nasty judder.

Would be so nice if a PC would change on playback like almost every hardware player out there, but they dont.




Richard rich.ms

239 posts

Master Geek
+1 received by user: 25


  Reply # 376361 3-Sep-2010 19:16
Send private message


Was going to write a response about this, far easier to post a couple of links which discribe the differences and what they mean.

http://en.wikipedia.org/wiki/Moving_image_formats

http://en.wikipedia.org/wiki/Frame_rate#Frame_rates_in_film_and_television





Masterpiece Calibration Ltd, isf certified

 

www.mastercal.co.nz

 

 

"I'm not a robot!"

Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.