Originally Posted by nussman
My A3010 seems to have problems with hdmi blacklevel.
PC output 0-255 (hdmi) => Yamaha A3010 => output 16-235
I dont find an option to change this behavior.
Can anybody confirm this?
Originally Posted by kriktsemaj99
Can you describe the test you did and how you can tell it's the 3010 and not the display that's clipping the levels? Anything is possible, but after the stink over video clipping a few years back, I thought Yamaha would be careful not to do that anymore.
Originally Posted by nussman First test (PC output 0-255):
On my Samsung TV you have to choose between hdmi blacklevel normal (16-235) and low (0-255).
Samsung hdmi blacklevel "low" => clipping
Samsung hdmi blacklevel "normal" => no clippingSecond test (Samsung hdmi blacklevel "normal"):
PC output 0-255 and 16-235 makes no difference at all.
So I guess the Yamaha does something.
I doubt nussman, who only made three posts, is still here, but these quotes gave me quite a scare today. I wanted to see if anyone had further info, and impart what I found myself.
Today was my 1010's last day in the return window, so I thought I'd better check for a dedicated AVS thread to uncover any issues. (Been somewhat busy.) Previously the only thing that bugged me was the stingy bass management; one global crossover setting and no EQ treatment for the sub. But every competitor has an achilles heel of some kind, and they don't have the RXA's emphasis on sound quality.
But I do game a lot, and consoles tend to run natively in RGB (0-255 color values) so nussman's charge that the Yamahas were clipping blacker-than-black and whiter-than-white to the 16-235 video standard had me testing frantically as the hours counted down on my return window.
Besides, I feel that good equipment should
pass BTB rather than chop it off, no matter how silly the notion. It's there. Don't discard it.
Using AVS HD 709 on my Xbox 360 S, I could not get the Yamaha to clip the signal. I tried every mismatch I could think of to replicate what nussman reported, with video processing on and off in the receiver, using random HDMI inputs as well as the suspiciously designated "BR/DVD" input, even strange non-standard resolutions, and still blacker-than-black seemed to pass through to the TV intact. Even if I ended up with total blackness, such as calibrating senselessly to 16 in RGB then
switching the Xbox to YCbCr 709, raising the brightness would show that everything had still made it through, all the bars below video black present.
Eventually I lugged down a Mac and hooked it up to the 1010, looked at black level calibration screens (all passed) and even got hands-on, drawing black boxes in Photoshop with RGB values of just 1/1/1 or 5/5/5 over true black 0/0/0 backgrounds, and could make them out distinctly. Far as I can tell, everything up to 16 should have been the same flat black if the Yamaha was clipping BTB.
Lastly, this series of Samsung TVs (LNA650) has a useful quirk: feed them YCbCr and they disable/grey out the "HDMI Black Level" option in the settings menu, because the sets know what has to be done with 16-235 video levels — 16 has to be "black"; feed them RGB and the option becomes available, because from an RGB source like a PC you could be playing back full range (0-255) or limited range (16-235) material — toggling the "HDMI Black Level" settings makes sure black is black, not gray, in either case.
With the Xbox 360 set to RGB, routed through the Yamaha 1010 to the TV, indeed the option is available; a sign that the receiver is passing RGB. With the console set to YCbCr 709, the option disappears as expected.
With the equipment I have, I can't think of another way to test the receiver's integrity here. Unless it's doing some crafty conversion of RGB that I haven't figured out, everything points to proper passthrough of a full 0-255 signal. All i can think of is that nussman, writing in October, possibly had older firmware, while I'm running the latest.