11:46 haasn: is there a way to see, in admgpu, the bitdepth/format of the signal *actually* being sent to the monitor?
11:46 haasn: /sys/kernel/debug/dri/1/crtc-0/amdgpu_current_bpc says 8 (sometimes 10), is that authoritative?
11:47 haasn: /sys/kernel/debug/dri/1/DP-3/max_bpc says 8
11:48 haasn: but /sys/kernel/debug/dri/1/DP-3/output_bpc says 'Maximum: 10'
11:48 haasn: ???
11:52 haasn: seems like `output_bpc` is what the hardware supports, `max_bpc` is what is currently being used
12:11 haasn: is amdgpu_display.c no-longer used for RDNA+?
12:11 haasn: seems like it's for use in dce_v* which are all for pre-RDNA
12:24 haasn: ah no it's just oddly named for some reason, gfx_v10 is loaded on my end and it does mention navi in the source code
12:25 haasn: oh that's gfx_v10 not dce_v10, confusing
12:47 MrCooper: haasn: max_bpc is a property which can be changed by user space, actual BPC cannot exceed its value
12:51 MrCooper: haasn: any display code under drivers/gpu/drm/amd/amdgpu/ is the old pre-DC code which originated from the radeon driver, which supports up to Polaris only IIRC; the new DC code is under drivers/gpu/drm/amd/display
12:52 haasn: thanks, I found it
12:52 haasn: seems the new amdgpu DC dithering controls are entirely hidden from the user?
12:53 haasn: I wanted to try playing with the dithering settings :/