- Joined
- Feb 25, 2020
- Messages
- 1
- Motherboard
- Asus H370 I-Gaming
- CPU
- i7-8700
- Graphics
- RX 5700
How are HDR and wide color gamuts supported by macOS, if at all, when it comes to 3rd party displays?
For the sake of argument, let's say one was to hook up an Acer Predator X27 to a mac/hackintosh with matching display output (DisplayPort 1.4 or HDMI 2.0 and a recent GPU that supported everything below): which of these features would work?
For the sake of argument, let's say one was to hook up an Acer Predator X27 to a mac/hackintosh with matching display output (DisplayPort 1.4 or HDMI 2.0 and a recent GPU that supported everything below): which of these features would work?
- 30 bit color depth (R10G10B10): assuming yes since I have seen macOS enable it on a Dell P2415Q automatically, guessing macOS detects if the monitor supports 30BPC via DDC/EDID instead of having a whitelist.
- >60Hz refresh rate: assuming it would kick in automatically, again thans to DDC/EDID, assuming enough bandwidth available on connection
- Wider-than-sRGB color space: guessing this would not work out of the box, but would require sourcing an ICC color profile for the display and setting up macOS to use it. Once that is done macOS's color management pipeline would behave as on a 1st party wide color gamut display
- HDR: no clue, and something I'd be really curious to know. Would macOS even offer to output an HDR10 signal when detecting anything other than the Pro XDR display? If so, would support be limited to HDR videos in the TV app/iTunes/the FairPlay2 protected video path or would 3rd party apps like VLC work? What about the desktop compositor? Would macOS switch video signal to HDR10 only when playing HDR video in full screen or would it tone map SDR apps and the desktop and always output in HDR?
- VRR/GSync/FreeSync: no support at all, AFAIK the macOS driver stack has no concept of variable refresh rates