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Q: HDMI Handshake problems every 20 - 30 minutes - Color Inversion Issue
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Feb 9, 2011 12:29 PMby tgibbs,Yes, from Apple's point of view, it doesn't matter who is at "fault." Nobody is going to replace a TV that costs hundreds of dollars to get better compatibility with a $100 dongle, which means that there is not much incentive for the TV manufacturer to work on a fix. So whether or not it was Apple's fault, it was Apple's problem. Apple needed to find a fix or workaround, and from the fact that the affected TVs work with other HDMI devices, it was clear that there had to be something that could be done on the AppleTV end to improve matters. I imagine that Apple has been working very hard on the problem, but HDCP is complicated, and sporadic errors tend to be very time-consuming to diagnose and fix. -
Feb 10, 2011 1:52 AMby dadudeness,Actually, some months ago it was guessed, the issue was about the output-signal YUF vs RGB. Someone was able to reproduce it with his PC hooked up to his TV set. If the ATI card was on YUF he got that color-inversion, after a change to RGB it was gone. That was in November!
What Apple did to solve it, was adding YUF <-> RGB to Preferences.
So there are two ways to interpret this:
1. Apple originally built something like an "Auto-Mode" inside ATV2 which simply did not work
2. ATV2's output has ever been YUF and not every TV set can deal with that. If so, they should have known that!
Anyway, Apple didn't exactly covered itself in glory having "developed" this issue and dealing with it. I'm pretty sure it was avoidable.
At the moment I'm just glad they fixed it, because ATV2 works so seamlessly with iTunes, iPad, ... I just did not want to return it. -
Feb 10, 2011 3:18 PMby tgibbs,YUF? Do you mean YUV?
Do you have a reference to the person who supposedly reproduced the problem? I could imagine the colors being off all of the time if the TV did not correctly negotiate the color space with the Apple TV, but it doesn't make much sense that the colors would be correct at first and then suddenly "invert," which is the problem with the Apple TV2 and the affected TVs. So it would be very interesting if somebody managed to reproduce this particular behavior.
If everything is working correctly, it should not be necessary to force RGB or YUV on the Apple TV end; HDMI displays are supposed to negotiate the color space with the signal source. -
Feb 11, 2011 1:44 AMby dadudeness,Yap, it's YUV, shame on me...
It's mentioned on page 15 of this discussion, i.e. this posting: http://discussions.apple.com/thread.jspa?messageID=12546508� -
Feb 12, 2011 4:24 PMby garnikma,Hi, I have a problem.
after buying Apple TV 2
When i see video every 20-30 minutes, the tv screen to become completely green, then pink and red. but video continues to playing
Apple TV 2 (OS 4.1.1)
Philips 32PFL7864H/60 (software most newest)
Router D-Link DIR 320 (software is newest)
When I disconnect the HDMI cable and resonant turn, everything works fine, but after 20-30 minutes, all repeat
You can still send the Apple TV in standby mode and resonant wake him up, in this case everything starts to work normally for 30 minutes.
