Playing back 4K HDR blue ray disk..

[IGBT]

I've noticed when playing back 4K HDR disks the settings in my 4K UHD monitor get pushed to full torch mode (Brightness / contrast turned to 100%) which upsets my calibrated settings in my monitor. I can go back in and manually set the settings back..but is a nuisance. When playing back 1080p blue ray SDR disks my calibrated settings stay as calibrated. I've talked to a number of service tech's about this issue and have all observed the same issue. Any thoughts on this on why 4K HDR blue ray disks upset "calibrated settings" in 4K UHD monitors??

 

[Kartajan]

http://defective.ytmnd.com/

But seriously, it is likely a function of either "dolby vision" or "hdr10" trying to enforce the intended HDR settings, but the manufacturer did not program a "return" function when the content switches back to SDR. I would pester the monitor's customer service about it.

(I would not expect a rapid resolution even if the manufacturer is sensitive to complaints.)

 

[IGBT]

http://defective.ytmnd.com/

But seriously, it is likely a function of either "dolby vision" or "hdr10" trying to enforce the intended HDR settings, but the manufacturer did not program a "return" function when the content switches back to SDR. I would pester the monitor's customer service about it.

(I would not expect a rapid resolution even if the manufacturer is sensitive to complaints.)

My neighbor's sony 4K UHD monitor does the same thing..so I believe you are correct..it's an enforced HDR settings which destroy the calibrated settings. I won't be buying anymore 4K content until this "feature" is corrected. Upscaled 1080p in SDR in my 4K UHD player looks very good!!

 

[Aikouka]

My neighbor's sony 4K UHD monitor does the same thing..so I believe you are correct..it's an enforced HDR settings which destroy the calibrated settings. I won't be buying anymore 4K content until this "feature" is corrected. Upscaled 1080p in SDR in my 4K UHD player looks very good!!

My Sony TV changes it back. I just took the lazy approach and copied the settings on Rtings, which sets the brightness to 1. However, if I play HDR or Dolby Vision content, it gets jacked up to 100 (and cannot be edited). Afterward, the settings go back to normal.

 

[IGBT]

My Sony TV changes it back. I just took the lazy approach and copied the settings on Rtings, which sets the brightness to 1. However, if I play HDR or Dolby Vision content, it gets jacked up to 100 (and cannot be edited). Afterward, the settings go back to normal.

HDR sucks..way to bright for me. Massive eye strain. I'm finished with 4K HDR blue ray disks.

 

[Aikouka]

HDR sucks..way to bright for me. Massive eye strain. I'm finished with 4K HDR blue ray disks.

I've usually only noticed really high levels of brightness when a scene has something like the sun fairly visible. It makes me wonder if Sunshine would just destroy the backlight in the TV.

 

[rchunter]

Haven't noticed anything like that on my LG tv's, uhd looks great. I don't ever use a monitor for watching movies.
All uhd gets ripped to mkv and added to the file server, vero 4k & nvidia shield for playback.

 

[cmdrdredd]

HDR sucks..way to bright for me. Massive eye strain. I'm finished with 4K HDR blue ray disks.

The brightness isn't really that high. You should watch some videos by Vincent Teoh of HDTV Test. He has some great videos that explain how APL(average picture picture level) and peak brightness work with HDR. When HDR signals are detected the display switches to the settings that allow the dynamic range and brightness range to show at their maximum level but you aren't seeing max TV brightness at all times. Notice the brightness control remains where it was set and only the OLED light or TV Backlight and contrast settings are adjusted. This is required for the TV to display the content properly. Now you say monitor and I've no experience with a HDR monitor but why should it work any differently in the end? You can calibrate for HDR by the way on TVs, the tools are available and have been for a while. Both dolby vision and HDR10.

Anyway look up some of the videos from Vincent. He explains a lot of stuff better than we could.