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Old 11th October 2019, 05:45   #57601  |  Link
SamuriHL
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I've been using error diffusion for quite a while. I suppose I could check out ordered again as it does reduce the processing power needed, as well.
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Old 11th October 2019, 08:31   #57602  |  Link
saracas
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Originally Posted by VBB View Post
Honestly, Error Diffusion is not necessary. Ordered will do the trick just fine. But yeah, RGB full + 8-bit everywhere. And definitely no PC mode

And if you want a smoother experience, set your desktop to 60Hz, disable frame rate switching in madVR, and set smooth motion to "Always".
Yea, the PC mode flaws are annoying. I have a huge macro in my remote to rename the input every single time I watch HDR... then rename it back after I am done.

They really need to add a easier solution to switch in/out of PC mode.
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Old 11th October 2019, 11:02   #57603  |  Link
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A question about an option in nvidia control panel, does it affect madvr's video output levels, like doing unnecessary conversion of the output levels or double expansion etc., if I set it to (0-255)? I'm using PC levels (0-255) in madvr, my monitor is accepting 0-255 RGB inputs, and does it affect the players potplayer or mpc-be, I read it only affects vlc, I get washed colors in vlc with the default option showed in the screenshot.

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Old 11th October 2019, 11:36   #57604  |  Link
mclingo
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Originally Posted by saracas View Post
Yea, the PC mode flaws are annoying. I have a huge macro in my remote to rename the input every single time I watch HDR... then rename it back after I am done.

They really need to add a easier solution to switch in/out of PC mode.
i'm not familiar with this PC mode problem you're talking about, what is it?

Also, what content exactly has the banding so I can check, I generally dont see any banding on blurays at all and I dont use any debanding in MADVR.

Can you let me know which movie you are talking about with a specific scene?
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Old 11th October 2019, 13:13   #57605  |  Link
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They really need to add a easier solution to switch in/out of PC mode.
Hum no, they need to fix 4:4:4 RGB support so it doesn't suffer worse image quality than 4:2:2 YCC.
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Old 11th October 2019, 13:53   #57606  |  Link
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Yea, the PC mode flaws are annoying. I have a huge macro in my remote to rename the input every single time I watch HDR... then rename it back after I am done.

They really need to add a easier solution to switch in/out of PC mode.
Why HDR playback should be affected at all in this mode? PC mode was designed for general desktop usage and gaming. Otherwise PC mode should do nothing.
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Old 11th October 2019, 14:27   #57607  |  Link
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They're using a lower quality image processing in PC mode compared to other modes, so in practice you have to choose between 4:4:4 RGB and good image quality.
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Old 11th October 2019, 16:17   #57608  |  Link
mclingo
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Where are you setting this PC mode?
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Old 11th October 2019, 17:13   #57609  |  Link
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Quote:
Originally Posted by thighhighs View Post
Why HDR playback should be affected at all in this mode? PC mode was designed for general desktop usage and gaming. Otherwise PC mode should do nothing.
Quote:
Originally Posted by mclingo View Post
i'm not familiar with this PC mode problem you're talking about, what is it?
Read the first part of this post and read the topic from here couple of pages.
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Old 11th October 2019, 18:24   #57610  |  Link
Klaus1189
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Quote:
Originally Posted by Warner306 View Post
RGB untouched by madVR and presented in PC mode should be the most accurate
Quote:
Originally Posted by j82k View Post
Should yes, but this is an LG TV.

RGB + PC mode + HDR is like the worst combination and produces terrible banding on the C8.
Quote:
Originally Posted by chros View Post
@jk82 is right, LG does some crazy things, e.g. there's no proper chroma 4:4:4 in PC mode at 4k resolution (and this is just 1 example). It seems it's more important for them to work on ABL algos than picture quality
Out of curiosity, how does these two pictures look on an LG OLED in PC Mode when displaying it at 100% size (1:1 Pixel)?
http://www.ozone3d.net/public/jegx/2...test-4k-tv.png
http://madshi.net/madVR/ChromaRes.png
Some Makro photos of the screen using a camera would be interesting.

Only LG OLEDs are affected or also LCD based TVs from LG? Is it year depending?
How about Panasonic OLED or LCD TVs?
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Old 11th October 2019, 18:30   #57611  |  Link
mclingo
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Read the first part of this post and read the topic from here couple of pages.
right, got you, can be hard to follow stuff on here, my LG has issues in PC mode but these started quote late into the updates, probably only last year, it was fine initially, HDR also looks pap in PC mode on mine.
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Old 11th October 2019, 19:00   #57612  |  Link
saracas
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Now that the LG OLED C9s have GSYNC support coming, I hope they'll start focusing on the bugs PC mode has. I can confirm my C9 + PC Mode + HDR = Banding in both games and movies, same as my friend's C8.

Last edited by saracas; 11th October 2019 at 19:03.
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Old 11th October 2019, 19:14   #57613  |  Link
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Originally Posted by Klaus1189 View Post
Out of curiosity, how does these two pictures look on an LG OLED in PC Mode when displaying it at 100% size (1:1 Pixel)?
http://www.ozone3d.net/public/jegx/2...test-4k-tv.png
http://madshi.net/madVR/ChromaRes.png
Some Makro photos of the screen using a camera would be interesting.

Only LG OLEDs are affected or also LCD based TVs from LG? Is it year depending?
How about Panasonic OLED or LCD TVs?
Klaus, those two chroma test patterns look just fine in PC mode, since PC mode does enable 4:4:4. The issue is that PC mode also switches the TV into 8-bit mode (this hasn't been proven 100%, but it is highly likely), which in and by itself would be OK, if it wasn't for the terrible banding it results in. You can see this in both SDR and HDR, although it's more prominent in HDR.

No clue if it also affects LG's LCDs or any of the other brands that use their panels.
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Old 11th October 2019, 19:37   #57614  |  Link
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Read the first part of this post and read the topic from here couple of pages.
Ok, 444@23... may be very useful But itís very bad that itís not "free". As well as any 4:4:4 modes on this TV, if i understand properly.
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Old 11th October 2019, 19:52   #57615  |  Link
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Klaus, those two chroma test patterns look just fine in PC mode, since PC mode does enable 4:4:4. The issue is that PC mode also switches the TV into 8-bit mode (this hasn't been proven 100%, but it is highly likely), which in and by itself would be OK, if it wasn't for the terrible banding it results in. You can see this in both SDR and HDR, although it's more prominent in HDR.

No clue if it also affects LG's LCDs or any of the other brands that use their panels.
Thanks for the info.
I thought of an 4:4:4 issue (4:4:4 and RGB ... , RGB is always 4:4:4 eqivalent ) because of that info:
Quote:
Originally Posted by chros View Post
@jk82 is right, LG does some crazy things, e.g. there's no proper chroma 4:4:4 in PC mode at 4k resolution.
Chros has a B8, you have a C7, so probably it differs from series and year?

Quote:
Originally Posted by Klaus1189 View Post
Only LG OLEDs are affected or also LCD based TVs from LG?
If someones knows that, please let me know

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Originally Posted by thighhighs View Post
But it’s very bad that it’s not "free". As well as any 4:4:4 modes on this TV, if i understand properly.
What is not free?
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Old 11th October 2019, 20:17   #57616  |  Link
thighhighs
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Klaus1189
PC mode allows 4:4:4 chroma, but has some problems... See chros notes about PC/non-PC modes from the link. That i mean not "free".
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Old 12th October 2019, 00:01   #57617  |  Link
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Thanks for the info.
I thought of an 4:4:4 issue (4:4:4 and RGB ... , RGB is always 4:4:4 eqivalent ) because of that info:

Chros has a B8, you have a C7, so probably it differs from series and year? If someones knows that, please let me know
There is no difference between models and years, as far as we can tell. What @chros was referring to was a statement made by Ted over at AVS, claiming that the LGs don't do a perfect 4:4:4, but very close. Nevertheless, chroma patterns are displayed without (noticeable) sub-sampling.
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Old 12th October 2019, 00:09   #57618  |  Link
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Hi, couple of issues with AMD 19.9.2 ive found, I've moved back to 19.8.1, firstly the vocal volumes were off for me, much quieter then they should be, thought it was my setup but issue was resolved by moving back, to double check i installed again, same issue again, so went back again.

Second issue is corruption when skipping, this is something AMD cards have had on and off for years, it sorts itself out after a few seconds of playback usually so no big deal.

Not a MADVR issue I know but thought i should say.
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Old 12th October 2019, 02:21   #57619  |  Link
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I find that de-banding on low/low doesn't hurt picture quality at all, and is unfortunately necessary with most content, regardless of the display. It works really well, though.
The low settings were designed to avoid any noticeable image degradation and it works quite well on content.. I doubt that it would affect the panels colors enough to be considered an improvement TBH.
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Old 12th October 2019, 04:35   #57620  |  Link
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So suggested setting for de-banding is low/low? I had it on medium/medium so far, 1080p Samsung LED TV.
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