Apple TV won't show 16:9

When I moved my Apple TV and Widescreen TV to a different room today my Apple TV started putting everything on screen out in 4:3 instead of 16:9 I tried the resolution settings and replugging everything and restarting the device with no success. I know its not the tv, it has worked perfectly fine up until now. Its really annoying to not be able to use all of the TV's screen. The picture is in 4:3 and center on the screen, leaving the sides un-used. Any help is appreciated!!

Mac Mini Core Solo; Powerbook G4 Titanium 667mhz, MacBook Pro (Unibody), Mac OS X (10.5.5)

Posted on Jul 12, 2009 11:34 PM

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11 replies

Jul 13, 2009 7:06 AM in response to Brendan09

The tv only outputs video at 16:9, it will not be the cause of your display showing 4:3.

Firstly are you sure the content isn't 4:3, the tv will take this content and display it at the correct aspect ratio by adding grey bands to each side of the picture to fill out the 16:9 display.

If your content is 16:9, your issue lies either with your encoding or the tv and/or its connections.

Jul 13, 2009 8:01 AM in response to Brendan09

I recently had a similar problem and thought ATV was the cause. But on further troubleshooting, I found the problem was the TV. Someone had accidentally changed the "aspect ratio" on the TV--easy to do by pressing the wrong button on the remote.

You may want to check the TV settings to see the aspect is set to 16:9. I think some TVs also allow different inputs to have different aspect ratios, so check the settings for your ATV input.

P.S. The previous poster is correct, ATV only outputs in 16:9; so on a SDTV that's 4:3 the picture looks skinny and tall, but on an HTDV it will fill the entire screen.

Jul 13, 2009 2:02 PM in response to Brendan09

1st of all, the Apple TV IS capable of putting out 4:3. It is an option in the display resolution menu. I am not an Apple TV noob, I have extensive experience in working with them and other Apple / OS X devices. I'm looking for less obvious things to try, I know how to check things and I am not stupid enough to not take the video into account. The image coming from the Apple TV is 4:3. My television does not have an option to change the display resolution like this, it has zoom options. In NO way can zoom fix a 4:3 image problem. I am intelligent enough to know the difference. I have a lot of experience with electronics, so please don't give me answers that include "You don't know what your looking" at solutions. I'm looking for tricks or an explanation for the issue.

Jul 14, 2009 2:27 AM in response to Brendan09

Here is an article: http://www.kashum.com/blog/1176709841
480p is NOT a widescreen format. That Is standard definition 4:3. This article suggests that it be done using composite or component connections, however the apple tv is capable of doing it over HDMI as well. It seems that the issue is that no matter what, it tries to boradcast in this format rather than the one I select in the menu. Sorry if I came off as a jerk in the last post, but I can check the obvious things.

Jul 14, 2009 2:58 AM in response to Brendan09

480p is NOT a widescreen format.


True

That Is standard definition 4:3


Not quite true.

480p refers not to the horizontal picture dimensions but to the number of horizontal lines of resolution and can indeed be any width at all, but in the case of the tv is 853 pixels wide thereby maintaining a 16:9 AR.

If your media file is 640 x 480 (4:3), the tv will add pixels (grey band) to each side and display the media in the centre of the screen.

If your tv is 4:3 and not 16:9 the output will still be the same from the tv but the picture will be compressed horizontally.

Without hacks, selecting 480p on the tv will result in a 16:9 output.

The

Jul 14, 2009 11:40 AM in response to Brendan09

Brendan09 wrote:
Here is an article: http://www.kashum.com/blog/1176709841
480p is NOT a widescreen format. That Is standard definition 4:3.


That's not strictly true.

If you take that stance, then NTSC DVD players outputting a progressive signal could ONLY output 4:3 not 169, and PAL ones at 576p could only be 4:3 too.

There's more to it when you add anamorphic encoding/pixel aspect ratios to the equation.

The 480/576p signal just refers to the number of lines - how they are displayed will depend on the output device and the display device. They don't always work perfectly together as much as we'd like them too.

Jul 14, 2009 12:29 PM in response to Brendan09

Are you sure it's not the TV 'Zoom' options.

I can force a 16:9 image to display at 4:3 on some of my TVs using the Aspect ratio/Zoom button.

It depends on the TV Set of course, but for example on my Panasonic sets I can choose

Auto - which often gets things wrong.

16:9 - which treats the signal as though it's 16:9

4:3 - treats the signal as 4:3 - so if it is a wide 16:9 video/broadcast with a 4:3 image and black bars either side, then using this forces it to narrower than 4:3. This setting is useful when broadcasters transmit 4:3 but without flagging as such so the TV stretches it to 16:9, and I hate that.

Zoom 1-3 - various zooms that zoom or distort the image and reduce quality bt remove black bars. Hate thse options usually.

It may not be your zoom settings of course, but as an earlier poster said it's certainly something to check out.

Good luck.

AC

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Apple TV won't show 16:9

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