Originally Posted by HTPC8813
I would like to get advised on some basic configuration and calibration procedure in order to get to the optimised viewing condition.
First let me introduce my configuration.
I use Win10 as HTPC as video source and connect the PJ through Yamaha 7850. The video card is Nvidia 1030. I am trying several video players including KODI, FLEX, VLC as well as commercial product like Power DVD etc. I have a library of films in both 1080p/3D(normal BD) and 4K UHD resolution in my server.
I noticed that in Win10, HDR needs to be switched on/off to get the optimal viewing experience.
Here are some basic questions.
1) On Windows side, is there way to switch HDR on/off by a script which I can put on the desktop? Or better is there a product which supports switching HDR on/off based on whether the source has HDR or not? (I guess that the answer is a NO)
2) On PJ side, what basic procedure I shall take to adjust the brightness/contrast/Sharpness etc? Do I need to do this for SDR and HDR separately? Or would I just use one of the pre-set display mode?
3) I noticed that in display mode there is HDR, do I need to manually switch to HDR mode in order to get the HDR effect? I probably just keep one HDMI connection from the receiver to the PJ and I don't want to select the input on PJ side.
4) And what about Gamma and Color settings? Do I need to be worried about that? Do these to be selected manually based on different video source?
Sorry for the long list of questions. Just want to get it jump started.
Thanks in advance!
1) Can't help as my PC is not HDR capable.
2/4) For HDR I will typically adjust HDR Dynamic range ( Bright-Standard-film-Details) and Gamma ( test each up to 2.4) and unfortunately this will vary by source and content. It's a bit frustrating at times because HDR material can be encoded for differing max and minimum brightness levels. The HDR Optimizer in the Panasonic UB420 can add an extra layer of adjustablity to HDR and SDR content. For example, it can send convert HDR material to SDR and you can then watch it using Reference mode and it can limit (tone map) the max and min values to keep hilights from being blown out and/or shadows from losing detail.
For HDR I would leave the projector contrast and colour settings at their default values. You should ensure that your source is sending a YUV signal and for best results it should send a 24P, 12bit 4:4:4, deep colour signal for 24P (typical for BD or 4K HDR BD or Netflix HDR source material) my Sony UBP-X700 is excellent for high quality streaming and very competent at 4K HDR and 4K upscaling disc upscaling . For 60hz, you will have to experiment, but basically you want the best signal possible. I only have one HDMI2.0 port on my UHD50, but I am guessing (maybe you can confirm) that the projector will use different HDR settings for HDMI 1 or 2, and thus you can set HDMI 1 up for PC HDR and HDMI 2 for 4k BD HDR, for example.
When the projector detects an SDR signal it will change to whatever SDR mode was last used on that HDMI connector (HDMI 1/2). It can be useful to feed the projector with two HDMI cables because of this. For example, your daytime SDR TV source can be fed to HDMI 1, and the projector optimized for that say - HDR Sim, gamma 2.0, and for dark room viewing of SDR material, you might use a BD player on HDMI2 - Reference, Gamma 2.4.
3) The projector should auto detect an HDR signal and switch into HDR mode and display the HDR flag on screen. You can check the status of the incoming signal via the Menu->info display on the projector.
On My UHD50 I found the factory cheat codes to go into the service menu and I turned on SDR ISF Day and Night Modes, and I optimized these for contrast and brightness as the names would suggest, by using SDR pluge test patterns from Youtube. However, I wouldn't advise doing this until you become very familiar with the operation of your projector.