Low end pc HDR pc tv dilema

[ALEXCLAUDIU1986]

i have pore english skills so i tray to be on subject .  video out from rx 560 (up to date) 4k 60 10 bit 4.2.2 10 bit hdr (no 10 bit pixel format in graphics) works fine . when i enable 10 bit pixel format on hisense (suports all formats from HLG to dolby vision) but when i enable 10 bit pixel format in GRAPHICS  hdr its no longer avaleble . i have an older tv lg and suports only hdr 10 but 10 bit pixel format let me enable hdr to 4K 4..2.2 @60 . why !?? tx in advance for any sugestions :)

[Zando_]

33 minutes ago, ALEXCLAUDIU1986 said:

when i enable 10 bit pixel format on hisense (suports all formats from HLG to dolby vision) but when i enable 10 bit pixel format in GRAPHICS  hdr its no longer avaleble .

Enabling it in the Display's own OSD does not mean it turns on 10-bit, it just tells the computer that option is available. Enabling 10-bit in graphics settings actually tells the PC to output 10-bit. 

 

Likely doesn't have the bandwidth (over whatever HDMI/DisplayPort spec it uses) to run both 10-bit and HDR. Thus why it grays out the HDR option when you enable 10-bit. 

[ALEXCLAUDIU1986]

yes ,that was my thought to , but on the same hdmi cable same sistem the lg its capable 10 bit and hdr at 60 . i have a cheap is 2.1 hdmi 1.2 m cable so the problem its not there  tv is hisense 65a7gq hdmi 2.1 capable (rx 560 is not) . i read on google (random) that amd drivers on hdr may have some problems but again just switching to LG the problem dissapears .