Mac OS

Question

Strange video/display problem - OS 10.6

by contravert / January 16, 2013 2:50 AM PST

Macbook pro - 13in running os 10.6.8.
I have a video problem that just appeared out of the blue. I can't display some video images and some pictures.

Specifically if I try to watch a you tube video I get a blank screen - but I can hear sound. If I control click on the video and select "popout" then then video will play normally.

Using MplayerX 2 I can no longer watch any videos on my computer.

Using Preview I can not seen any of the pictures on my computer but I can see the thumbnails. If I use Nikon View photo software I can see the pictures just fine.

Obviously this is not a hardware problem. Some setting somewhere has gotten messed up but I can't find it. HELP!

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All Answers

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Answer
Sounds right.
by R. Proffitt Forum moderator / January 16, 2013 3:00 AM PST

As more security is imposed you see this happen. For video files I prefer VLC PLAYER since it side steps the decoder issues.

For youtube you want to try their HTML 5 options.
Bob

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And preview?
by contravert / January 16, 2013 3:33 AM PST
In reply to: Sounds right.

It's more than just video files and you tube though. If I try to open a jpg in preview I get a blank screen. I can see the thumbnail in the side bar but no picture. If I open a pdf in preview it shows up just fine. I can no longer display a video or jpg image. I'm thinking about copying everything off and reinstalling the OS

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Sorry but as there are caches and more in play.
by R. Proffitt Forum moderator / January 16, 2013 3:41 AM PST
In reply to: And preview?

You may want to wait for our Appleheads to reply. I know that preview can be treacherous because to make a preview your code has to be able to decode the file.

Since folk went a little nuts with some thousands and still more encoding methods it is no longer possible to expect an OS to decode all these. Plus some of them require paying a license fee to decode (example? mpegla.com)

This area is fun to watch to see where it will go as the number of video encodings climb.

The JPEG one however is usually something I see with folk that have the newer 20 megapixel cameras. The OSes usually limit how big the image is for many reasons. I won't list those here since I want to read what you think these are.
Bob

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Most of the pics on this computer have been on here
by contravert / January 16, 2013 6:17 AM PST

for a couple of years and are very much smaller than 4 mg. I did get an error message with the last youtube (or maybe Vimeo) video I attempted to play that said I had to have Flash 8+ and Java enabled. My flash player and java handler are up to date and enabled so that's not the problem - but apparently my computer thinks it is. A clue perhaps?

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I don't see where yo say you have,
by mrmacfixit Forum moderator / January 16, 2013 7:00 AM PST

so I'll ask if you have done the "Repair Permissions" yet?

A shot in the dark but worth a try


P

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Thanks - I hadn't, so I did
by contravert / January 16, 2013 11:49 AM PST

and it repaired about 30 permisssions. Then I tried opening some pics on my desktop - nada. Tried to view a video - nada.

So i repaired again - same permissions were repaired again - then I tried a third and a fourth time. Each time it says it repaired the same permissions and each time they are still wrong. I'm guessing I need to reformat and reinstall 10.6.8 - but of course I no idea where the disks are.

Should I just buy 10.7?

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That is certainly worth a try and the price is right
by mrmacfixit Forum moderator / January 16, 2013 8:49 PM PST

I wouldn't mind betting that after you install Snow Leopard, all will be well again

P

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