On Tue, 2026-01-13 at 22:41 +0100, Tomasz Pakuła wrote: > Adaptive Sync over PCON is only available as FreeSync over HDMI. TVs which do > not support FreeSync, do not have working VRR with DP -> HDMI 2.1 adapters > even > though adapters will take care of HDMI VRR info packets. > > Since HDMI VRR relies on FRL modes, this will only be enabled for PCONs in the > VRR whitelist. HDMI VRR for native HDMI connector will still not be > possible/attempted. > > I myself validated these changes with my Samsung S95B + Bernhard validated on > LG C4 + FreeSync-less Sony Bravia 8. I used Alienware AW3423DWF that only > has HDMI 2.0 to check that FreeSync still triggers properly for "older" > hardware > > For missing VRRmax or VRRmax == 0, the upper boundary is the currently > selected > video mode refresh rate. I wasn't sure how best to implement it but 10000 > works since the driver already limits VRR range to the currently selected > video mode and 10000 Hz should be good enough for years to come. > > Changes in v2: > - More info parsed from HDMI Forum vsdb > - EDID parsing squashed into one commit > - Support for VRRmax == 0 > > Tomasz Pakuła (3): > drm/edid: parse more info from HDMI Forum vsdb > drm/amd/display: rename PCON adaptive sync types > drm/amd/display: enable HDMI VRR over PCON > > .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 27 +++++++++-- > .../amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 2 +- > .../amd/display/modules/inc/mod_info_packet.h | 4 +- > .../display/modules/info_packet/info_packet.c | 4 +- > drivers/gpu/drm/drm_edid.c | 41 +++++++++++++++- > include/drm/drm_connector.h | 47 +++++++++++++++++++ > 6 files changed, 114 insertions(+), 11 deletions(-)
I'd like to inform you that this patch series will be superseded by another, bigger patch series which compiles my recent work as all the separate series/patches di conflict with each other. Thank you. Tomasz
