LCD from 2010 - RGB full or limted? - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 7 Old 03-24-2020, 10:36 PM - Thread Starter
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Question LCD from 2010 - RGB full or limted?

Help me with an old peasant (but serviceable!) LCD please.


I'll try to keep it tldr;
- old 2010 Samsung TN LCD BX2231
- HDMI only, Nvidia control panel sees it as HDTV, known NV issue
- tried 2 options: RGB full, YCbCr444
- both options increase perceived clarity/"cleanliness" of the screen
- "AVS HD 709" black-level/clipping calibration pattern shows more black colors
- bright material seems even brighter, and more contrasted to dark material


Issue:
- overall screen becomes darker
- dark material loses a lot nuance (aka gray becomes dark gray and so on)
- no gamma bumping (in-game or LCD OSD) is bright enough
- LCD's "HDMI black level" is Normal, because Low+RGB full = even more darkness
- contrast 75, brightness 100, gamma mode1 (I'm unsure it that's 2.0, 2.2, 2.4 or some else)


So, I'm confused. It's a PC monitor, on a PC, where RGB full makes sense. Screen gets overall cleaner, I can see more dark levels, but also loses a lot of perceived brightness, and dark stuff becomes even more dark.


Old panel, or a setting set wrong?
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post #2 of 7 Old 03-24-2020, 11:15 PM
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Match your source.

Sorry, but your answer got as much detail as your question provided.

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post #3 of 7 Old 03-25-2020, 09:28 AM - Thread Starter
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Quote:
Originally Posted by markmon1 View Post
Match your source.

Sorry, but your answer got as much detail as your question provided.

Thing is, I don't know how to match this panel, that's why I'm asking, and provided the behavior.



For the purpose of this conversation, source is a PC set to RGB full running a PC game, which AFAIK are in RGB full as is.


I can't post images for comparison...
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post #4 of 7 Old 03-28-2020, 07:43 AM
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sounds like an issue people run across from time to time
if "low" caused problems then try "high"

Loving D65
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post #5 of 7 Old 03-30-2020, 11:22 PM - Thread Starter
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Quote:
Originally Posted by CalWldLif View Post
sounds like an issue people run across from time to time
if "low" caused problems then try "high"

Limited + Low = Full + Normal, literally _in my case_.


But that's not the issue. Both options provide a cleaner image, but everything that isn't really bright gets really dark, and no amount of fiddling with monitor's settings can compensate.
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post #6 of 7 Old 03-31-2020, 02:42 AM
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Quote:
Originally Posted by 2mg View Post
Limited + Low = Full + Normal, literally _in my case_.


But that's not the issue. Both options provide a cleaner image, but everything that isn't really bright gets really dark, and no amount of fiddling with monitor's settings can compensate.
i am not quite clear on just what you are seeing.
sounds like gamma.
no gamma settings?

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post #7 of 7 Old 03-31-2020, 02:26 PM - Thread Starter
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Quote:
Originally Posted by CalWldLif View Post
i am not quite clear on just what you are seeing.
sounds like gamma.
no gamma settings?
Look at the attached image please.


RGB limted = you can clearly see the reflection below.
RGB full (or RGB limited + HDMI level Low) = reflection is pretty much just a shadow.


LCD doesn't offer much in gamma options (just 3 modes, each a bit different from eachother). Games usually have gamma sliders, and if this image was in a game, no amount of gamma boosting would turn those shadow back into a proper clear reflections.
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