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.

View this topic in a long page with up to 500 replies per page Create new topic
1 | 2 


1698 posts

Uber Geek
+1 received by user: 3

Trusted

  Reply # 960239 2-Jan-2014 12:07 Send private message

I've uploaded the below video which shows the issue:

http://www.youtube.com/watch?v=RLQ1ICM26Zk&feature=youtu.be

(how do i embed this video?)

I have now tested on two different computers using two different VGA cables so i believe I've eliminated the PC/cable causing the issue.

The TV is not in eco mode either.

Note this doesn't happen when connected via HDMI.



788 posts

Ultimate Geek
+1 received by user: 67


  Reply # 960486 3-Jan-2014 00:19 Send private message

that looks like macrovision in action.



1698 posts

Uber Geek
+1 received by user: 3

Trusted

  Reply # 960588 3-Jan-2014 10:45 Send private message

ilovemusic: that looks like macrovision in action.


But why would it only happen over VGA and not when connected via HDMI?

And it doesnt happen on my smaller 50 inch lcd screen whena lso connected via vga.



1698 posts

Uber Geek
+1 received by user: 3

Trusted

  Reply # 967656 15-Jan-2014 16:26 Send private message

Hi guys,

FYI - Sharp's formal response to this:

"With regards to your enquiry, we believe this issue with the full screen VGA is caused by macro vision impregnated in the video sync (to stop copying). When the window task bar is on screen the sync is generated by the PC, hence no problem is experienced.


We would recommend using a HDMI connection rather than VGA in this case. HDMi, contains DRM (digital rights management) which prevents copying and the source knows is contacted to a monitor rather than a recording device so the picture is enabled."

What are your thoughts? Does this sound legit?

If that is the case, why doesn't it happen on my smaller 55inch TV too?

788 posts

Ultimate Geek
+1 received by user: 67


  Reply # 967668 15-Jan-2014 16:57 Send private message

i was right ?

damn, thought macrovision died ages ago with vhs.

as it's an analogue process it won't show up on hdmi.

dunno why it doesn't affect your smaller tv.

11177 posts

Uber Geek
+1 received by user: 570

Trusted
Subscriber

  Reply # 969128 17-Jan-2014 21:24 Send private message

I have never heard of macrovision being applied to RGB VGA cables.

The benifit of using HDMI is you can get it to transport component video which will signifigantly reduce banding in the darker areas and will also have less quantisation errors.

It might be some form the dynamic range of the image changing and the TV trying to match, I had a projector that did that over VGA, put a dim photo up and it would then stretch the levels out to full scale making it wash out shadow details. There was some buryed option to turn it off and it was better, but it still had massive crush at the white end when using VGA.

As for the seller saying their DVI to HDMI cable wont work for computer to tv, probably sick of people putting it into a PC outputting PC resolutions into a TV that doesnt want to take them calling the cable faulty.




Richard rich.ms

1 | 2 
View this topic in a long page with up to 500 replies per page 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:





Trending now »

Hot discussions in our forums right now:

Government Limos
Created by networkn, last reply by Bung on 31-Oct-2014 12:39 (94 replies)
Pages... 5 6 7


Snap refuses to replace faulty gear
Created by Brendan, last reply by MadEngineer on 28-Oct-2014 19:07 (92 replies)
Pages... 5 6 7


How good is your general Science Knowledge?
Created by Aredwood, last reply by joker97 on 31-Oct-2014 20:31 (28 replies)
Pages... 2


Sky will be 'upgrading software' of My Sky to connect to internet. What does that mean?
Created by Geektastic, last reply by hio77 on 31-Oct-2014 19:14 (23 replies)
Pages... 2


Shutup and take my money (via NFC on my mobile phone)
Created by sxz, last reply by afe66 on 31-Oct-2014 19:19 (22 replies)
Pages... 2


Speed limit when overtaking? Teach me please.
Created by nakedmolerat, last reply by joker97 on 28-Oct-2014 17:13 (123 replies)
Pages... 7 8 9


Uber: a cheaper taxi ride?
Created by kingdragonfly, last reply by livisun on 31-Oct-2014 14:47 (34 replies)
Pages... 2 3


DDos Protection from ISP
Created by charsleysa, last reply by freitasm on 31-Oct-2014 12:11 (46 replies)
Pages... 2 3 4



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.