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Samsung HDMI Black Level Setting?

post #1 of 16
Thread Starter 
On Samsung TVs there is a setting called "HDMI Black Level". It can be set to normal or low. Is normal the same as RGB(0-255) and low the same as RGB(16-235), or do I have that backwards? Thanks!
post #2 of 16
Thread Starter 
No one knows?
post #3 of 16
I was just about to post this same exact question. Accept I have a Samsung LN-T3253H lcd. Does anyone know the answer?
post #4 of 16
I believe it's used to set the black level (what voltage is defined as "black") in the HDMI signal. I would think that HDMI would have a standard but maybe no everyone follows it. I have it set to low on my LN52A650 on the HDMI input from my Dish receiver and normal for my BD and HD-DVD players. I came across this message looking for more clarification myself though.
post #5 of 16
I found one post that said this:

"HDMI Black Level: (YCbCr color-difference signals over HDMI will result in a ghosted setting. Applicable for RGB signals over HDMI only. When dealing with RGB signals I recommend that the end-user experiment with the HDMI Black Level settings in an effort to determine which setting provides the best performance.)"


And I found this humorous post asking about this same issue, but the poster didn't want to venture over to AVSForum.

http://www.eurogamer.net/forum_threa...read_id=107041


From other messages and articles I've glanced at, it looks like low will expand blacks down to 0 RGB instead of 16.

Pause a movie at a very dark scene with lots of shadows, etc. Switch it back and forth and see if you can tell a difference.

-Carl
post #6 of 16
Quote:
Originally Posted by bschellva View Post

On Samsung TVs there is a setting called "HDMI Black Level". It can be set to normal or low. Is normal the same as RGB(0-255) and low the same as RGB(16-235), or do I have that backwards? Thanks!

What model TV do you have?

On my HL61A750, it is only valid for RGB sources, (computers, or say the PS3 games and XMB dashboard.)

Low is for Video 16-235 encoded sources, Normal is 0-255 PC encoded material.

Since I prefer to optimize mine for PS3 gaming, (and the PS3 can be made to use YPb as Blu Ray output, in which case this setting does not apply for my set), I set mine for Normal, and on the PS3 RGB Full range. (If you use RGB limited then you need to set it to Low.)

Check out the FAQ in my sig for some info about it.
post #7 of 16
I had the same decision with my 5281 lcd from last year.Use normal.The low is just too dark in my opinion for the HL67A750.
post #8 of 16
Your correct. I went on over to display calibration area and asked the question some time ago. I have my 360 set up with pc levels through hdmi 1.

http://www.avsforum.com/avs-vb/showthread.php?t=1018097



Quote:
Originally Posted by mike_pro View Post

What model TV do you have?

On my HL61A750, it is only valid for RGB sources, (computers, or say the PS3 games and XMB dashboard.)

Low is for Video 16-235 encoded sources, Normal is 0-255 PC encoded material.

Since I prefer to optimize mine for PS3 gaming, (and the PS3 can be made to use YPb as Blu Ray output, in which case this setting does not apply for my set), I set mine for Normal, and on the PS3 RGB Full range. (If you use RGB limited then you need to set it to Low.)

Check out the FAQ in my sig for some info about it.
post #9 of 16
So if HDMI Black Level should be set to "low" for video sources, then why does the HDMI Black Level default to "Normal" and get greyed out from my BluRay player and HD-DVD player? That's what I don't get about all this. This seems totally counter-intuitive to me. Unless it's deactivated when greyed out? Is there no levels like that for YCrCb sources?
post #10 of 16
Quote:
Originally Posted by mezman View Post

So if HDMI Black Level should be set to "low" for video sources, then why does the HDMI Black Level default to "Normal" and get greyed out from my BluRay player and HD-DVD player? That's what I don't get about all this. This seems totally counter-intuitive to me. Unless it's deactivated when greyed out? Is there no levels like that for YCrCb sources?

Set your xvYCC to "on" and it will default to HDMI-Low for all component and HDMI inputs. It's just a backwards way to do it, but if you like the black levels better this way, then use it.
post #11 of 16
This setting is certainly worth highlighting. Set it wrong or leave it set wrong, and it guts the grayscale and causes some angst...
post #12 of 16
I have tried everything. Why cant i use hdmi black level. Alwas greyed out. I call samsung. Useless. Help. Is my set broken?
post #13 of 16
I write this as a self-remind note.

To be able to access the HDMI Black Level option on your Samsung LCD TV you must set your device's output resolution to any of the standards (1280x720 or 1920x1080).

Otherwise, the option will be grayed out.

Thats all.
Have fun.
post #14 of 16
What about video playback on PC? Most of the videos seem to have too bright blacks. Should I use "Low" option?
post #15 of 16
Yes, you should use "Low" option to get the better blacks.
And if you are using software to play your videos like GOM Media Player you can always decrease the brightness. (With the letter E of your keyboard on GOM, until you get the color you like).

post #16 of 16
I wonder if the HDMI Black Level setting gets greyed out whilst in Game Mode? The TV I'm referring to is the PSE6500 plasma.
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