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HDMI switching screwed up now ?

appletv connect to onkyo amp via HDMI, and HDMI cable out from amp to TV.

all worked perfectly up until v3.0

now when i switch to applev i get "no signal" on the TV, the amp flashes a few times to denote that the sound stage has changed, but nothing on screen.

the appletv is still visible within itunes during this, and a sync process still completes correctly, so the appletv is "alive".

have to pull the power cable to get it to come on screen again.

geez this v3 has created so many "new" issues you have to wonder if this really was tested or not.

 MBP C2D 2.4GHz  Mac Mini G4  AppleTV  iPhone 3GS 32GB  iPod Classic 80GB, Mac OS X (10.6.1)

Posted on Oct 29, 2009 2:44 PM

Reply
71 replies

Oct 31, 2009 4:41 AM in response to Jolly Giant

i have already tried a factory restore and didn't make any difference.

i spoke to someone at apple briefly about the issue, and even though they did say they would pass the info to an "engineer", they also said that they only support it being connected direct to a TV so if it no longer worked via an amp then tough luck so to speak.

Oct 31, 2009 5:02 AM in response to Kakiser

I have been able to get this to work without rebooting the Apple TV. I turn the TV off, then switch the A/V Receiver to the Apple TV input, then turn the TV on. So far it has worked twice.
Hopefully this will help someone else.

Now about the reboots, seems to be spontaneous. I'm wondering if the above works only because it re-booted itself before hand.

Oct 31, 2009 5:04 AM in response to Kakiser

Kakiser wrote:
Now about the reboots, seems to be spontaneous. I'm wondering if the above works only because it re-booted itself before hand.


i suspect this is the case.
this morning when i noticed mine had rebooted, i switched the amp over to the appletv source and it displayed all ok.

i then changed the source back to TV, and then back to the appletv and again "no signal".

Oct 31, 2009 6:32 AM in response to Chenks

i bet ya Apple deleted HDMI protocols for some older HDTV sets with 3.0.

i have a Toshiba 37WL58P, must be close to 6 years old. my TV will only acknowledge it's there after a reboot but not when i turn it on while i play back content (or return from another source).

otherwise my TV works okay.

unless there is a regular way to return to 2.4, i guess i'll have to learn to live with this annoyance and devise workarounds...

Oct 31, 2009 8:53 AM in response to Jolly Giant

Actually HDMI switching has never worked on my setup. I have HDMI and optical going from the ATV to a Harmon Kardon receiver and then HDMI to my Hitachi TV. In the old days, switching the HDMI inputs on the receiver to watch cable or my DVD player would cause the ATV to hang. I just got used to cycling the power on the ATV as it is faster than doing a software reset with the remote.

After this latest up date, when I put the ATV into standby and simply turn off the TV and turn it back on, the ATV will not wake up, or at least it won't send a video signal to the TV. So now, I simply turn off the power rather than put it into standby.

The interesting thing is that a software update caused this change which leads me to believe that it is simply sloppy programming by the ATV team. (I assume that if it was a hardware issue they would have updated the newer units after all this time.)

Cheers,

Oct 31, 2009 9:27 AM in response to drrrf

well, my TV is bl**dy back yeeeeehaaaaw !

factory restore > re-update to 3.0 and voila, back to normal !

the only significant change i made (if you wanna call it that) was that i left the resolution settings as suggested by TV.

i used to force my TV to display 1080i (max resolution of my Toshiba) but when i restored to v1.0, it came up as 720p -50 Hz. i left this resolution intact and now i can tun off my TV and turn it back on and almost immediately i get a signal from the TV.

of course, i can't be sure if indeed it was the resolution thingy or a corrupt 3.0 download last night. i don't care - i was so down since last night but now i have my swagger back (:-)

i'm so happy i could dance for joy

Oct 31, 2009 10:23 AM in response to Chenks

Same thing happened to me. I had the "wouldn't wake after switching" I ended up doing a factory restore, and re-updating. Lo-and behold, it finally worked. I tired everything but that was the only thing that worked. Make sure you stop syncing after restoring and run the update again. Seemed to work for me. FINALLY. Was about to throw it out the window.

I don't have mine hooked to receiver, rather straight to the TV through HDMI. Hope it helps.

Nov 2, 2009 5:03 AM in response to Chenks

I'd be willing to bet that you've got this Apple TV connected to a Samsung TV. There is an issue with many Samsung TVs having 'issues' with all sorts of HDMI-connected, but particularly the Apple TV.

You could go into the service menu on the TV and switch the 'hotplug' option to off. This will fix the issue that Samsung TVs seem to have with the Apple TV.

Or, you could plug the Apple TV into the HDMI input nearest to the PC input (usually this will be HDMI 2 if your set has more than one HDMI port). Once connected to the right HDMI input, you need to change the name of the input to 'PC' - this will force the TV into monitor mode. However, if you set the Apple TV resolution to your TV's maximum (in my case 1080p), you'll lose access to the Colour and Sharpness controls as the TV is assuming that the 'PC' will be in charge of that stuff.

Nov 2, 2009 5:16 AM in response to Chenks

Well, it was just a thought.

I've seen this issue with Samsung TVs before when an Apple TV has been connected via a receiver.

Is the receiver in HDMI Passthrough or Repeater mode?

It couldn't hurt to try my suggestion, as you'd only need to rename the HDMI 2 input on your TV to 'PC' and route your amp to that port and give it a whizz. The reason I suggested it is that it is easy to try, that's all. This solution has certainly helped a few people on these very forums in the past, so I know there's something in it that makes its kung fu strong.

I'm not saying there aren't issues with Apple TV 3.0, but this could be a problem elsewhere in your HDMI chain.

Personally, my major problem with v3.0 is that it is still presenting lip-sync issues with AC3 audio.

Nov 2, 2009 5:22 AM in response to Easybourne

Easybourne wrote:
Is the receiver in HDMI Passthrough or Repeater mode?


amp just passes the video content straight thru to the TV. no upscaling or any other jiggery-pokery is done by the amp with the video

Easybourne wrote:
I'm not saying there aren't issues with Apple TV 3.0, but this could be a problem elsewhere in your HDMI chain.


possible, but as the HDMI chain was unchanged and untouched prior to the v3 update, i'm leaning towards it not being an issue with anything other than the appletv v3 update.

at the moment i've removed the appletv from the amp and it is connected to HDMI2 on the TV (not renamed to PC though) and the "no signal" issue has disappeared. however i still have the other issues with the appletv randomly rebooting (this happened when connected to both the amp and the tv).

i am waiting to hear back from apple support regarding this as i called them on friday to report the issue and was advised i would get a call back at some point.

HDMI switching screwed up now ?

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