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Hi all,
This week this patchset was tested on 4 systems, two dGPU and two APU based,
and tested across multiple display and connection types.
APU
* Single Display eDP -> 1080p 60hz, 1920x1200 165hz, 3840x2400 60hz
* Single Display DP (SST DSC) -> 4k144hz, 4k240hz
* Multi display -> eDP + DP/HDMI/USB-C -> 1080p 60hz eDP + 4k 144hz, 4k
240hz (Includes USB-C to DP/HDMI adapters)
* Thunderbolt -> LG Ultrafine 5k
* MST DSC -> Cable Matters 101075 (DP to 3x DP) with 3x 4k60hz
displays, HP Hook G2 with 2x 4k60hz displays
* USB 4 -> HP Hook G4, Lenovo Thunderbolt Dock, both with 2x 4k60hz DP
and 1x 4k60hz HDMI displays
* SST PCON -> Club3D CAC-1085 + 1x 4k 144hz, FRL3, at a max resolution
supported by the dongle of 4k 120hz YUV420 12bpc.
* MST PCON -> 1x 4k 144hz, FRL3, at a max resolution supported by the
adapter of 4k 120hz RGB 8bpc.
DGPU
* Single Display DP (SST DSC) -> 4k144hz, 4k240hz
* Multiple Display DP -> 4k240hz + 4k144hz
* MST (Startech MST14DP123DP [DP to 3x DP] and 2x 4k 60hz displays)
* MST DSC (with Cable Matters 101075 [DP to 3x DP] with 3x 4k60hz
displays)
The testing is a mix of automated and manual tests. Manual testing includes
(but is not limited to)
* Changing display configurations and settings
* Video/Audio playback
* Benchmark testing
* Suspend/Resume testing
* Feature testing (Freesync, HDCP, etc.)
Automated testing includes (but is not limited to)
* Script testing (scripts to automate some of the manual checks)
* IGT testing
The testing is mainly tested on the following displays, but occasionally there
are tests with other displays
* Samsung G8 Neo 4k240hz
* Samsung QN55QN95B 4k 120hz
* Acer XV322QKKV 4k144hz
* HP U27 4k Wireless 4k60hz
* LG 27UD58B 4k60hz
* LG 32UN650WA 4k60hz
* LG Ultrafine 5k 5k60hz
* AU Optronics B140HAN01.1 1080p 60hz eDP
* AU Optronics B160UAN01.J 1920x1200 165hz eDP
* Samsung ATNA60YV02-0 3840x2400 60Hz OLED eDP
The patchset consists of the amd-staging-drm-next branch (Head commit ->
0fe07578aeb611d89ceacacfa77345dbeba45bc4 -> drm/amdgpu: Fix race on
ualink_handle_lo in UALink handle export) with new patches added on top of it.
Tested on Ubuntu 26.04, on Gnome Wayland.
Tested-by: Dan Wheeler <[email protected]>
Thank you,
Dan Wheeler
Sr. Technologist | AMD
SW Display
------------------------------------------------------------------------------------------------------------------
1 Commerce Valley Dr E, Thornhill, ON L3T 7X6
amd.com
-----Original Message-----
From: [email protected] <[email protected]>
Sent: Friday, October 2, 2026 3:32 PM
To: [email protected]
Cc: Wentland, Harry <[email protected]>; Li, Sun peng (Leo)
<[email protected]>; Li, Roman <[email protected]>; Lin, Wayne
<[email protected]>; Chung, ChiaHsuan (Tom) <[email protected]>; Zuo,
Jerry <[email protected]>; Wheeler, Daniel <[email protected]>; Wu, Ray
<[email protected]>; LIPSKI, IVAN <[email protected]>; Hung, Alex
<[email protected]>; Lin, Ping Lei <[email protected]>; Chen, Chen-Yu
<[email protected]>; Li, Roman <[email protected]>
Subject: [PATCH 00/17] DC Patches October 2, 2026
From: Roman Li <[email protected]>
This DC 3.2.401 patchset brings improvements in multiple areas. In summary, we
have:
* HDMI: RR and SCDC skips, link-training timeout behaviour, VRR metadata in the
VTEM info packet, and a TMDS output regression revert;
* MCM shaper/3DLUT programming and DTN logging improvements;
* DMUB: fast-lock sequencing refactor and FAMS2 command update;
* DSC configuration preparation and DRR reprogramming optimizations;
* Replay/low-power, eDP link-bandwidth, cursor offload, and virtual link
encoder handling;
* New DCN42b project ID.
Cc: Dan Wheeler <[email protected]>
Allen Li (1):
drm/amd/display: Skip link off frame count for general UI
Alvin Lee (3):
drm/amd/display: Set cursor_offload for all pipes for a given stream
drm/amd/display: Assign alt wa bit in fams2 cmd
drm/amd/display: Add debug option to override low power SR latencies
Aric Cyr (1):
drm/amd/display: only reprogram DRR when v_total values change
Ashwin Santhosh (1):
drm/amd/display: Promote DC to 3.2.401
Dillon Varone (1):
drm/amd/display: Add dcn42b project id
Harry Wentland (2):
drm/amd/display: enable shaper when programming 3DLUT
drm/amd/display: log MCM shaper and 3D LUT mode in the DTN log
Ilya Bakoulin (1):
drm/amd/display: Add HDMI RR and SCDC skips
Ivan Lipski (1):
drm/amd/display: Send HDMI VRR metadata in VTEM info packet slot
Joshua Aberback (1):
drm/amd/display: Revert "avoid to write signal specific for tmds"
Martin Tsai (1):
drm/amd/display: allow skipping link bandwidth clear
Rafal Ostrowski (2):
drm/amd/display: Refactor DMUB fast lock sequencing
drm/amd/display: Prepare DSC configuration before BLS execution
Relja Vojvodic (1):
drm/amd/display: Update link training no timeout behaviour on HDMI
Sridevi Arvindekar (1):
drm/amd/display: Handle virtual link encoder
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 1 +
.../amd/display/amdgpu_dm/amdgpu_dm_color.c | 1 +
.../display/amdgpu_dm/amdgpu_dm_freesync.c | 26 +-
drivers/gpu/drm/amd/display/dc/core/dc.c | 101 +---
.../drm/amd/display/dc/core/dc_hw_sequencer.c | 522 ++++++++++++------
.../drm/amd/display/dc/core/dc_link_exports.c | 5 +
.../gpu/drm/amd/display/dc/core/dc_resource.c | 2 +-
.../gpu/drm/amd/display/dc/core/dc_stream.c | 36 +-
drivers/gpu/drm/amd/display/dc/dc.h | 8 +-
drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 1 +
drivers/gpu/drm/amd/display/dc/dc_dp_types.h | 1 +
drivers/gpu/drm/amd/display/dc/dc_types.h | 2 +
.../drm/amd/display/dc/dce/dmub_hw_lock_mgr.c | 12 +-
.../dc/dml2_0/dml21/inc/dml_top_types.h | 1 +
.../dml21/src/dml2_cga/dml2_cga_factory.c | 1 +
.../dml21/src/dml2_core/dml2_core_factory.c | 1 +
.../dml21/src/dml2_dpmm/dml2_dpmm_factory.c | 1 +
.../dml21/src/dml2_mcg/dml2_mcg_factory.c | 1 +
.../dml21/src/dml2_pmo/dml2_pmo_factory.c | 1 +
.../dml21/src/dml2_top/dml2_top_interfaces.c | 1 +
.../dml2_utm_soc_bb/dml2_utm_soc_bb_factory.c | 1 +
.../drm/amd/display/dc/dsc/dcn20/dcn20_dsc.c | 48 +-
.../drm/amd/display/dc/dsc/dcn20/dcn20_dsc.h | 13 +-
.../drm/amd/display/dc/dsc/dcn35/dcn35_dsc.c | 1 +
.../amd/display/dc/dsc/dcn401/dcn401_dsc.c | 34 +-
.../amd/display/dc/dsc/dcn401/dcn401_dsc.h | 5 +-
.../drm/amd/display/dc/dsc/dcn60/dcn60_dsc.c | 41 +-
.../drm/amd/display/dc/dsc/dcn60/dcn60_dsc.h | 3 +-
drivers/gpu/drm/amd/display/dc/dsc/dsc.h | 3 +-
.../amd/display/dc/hwss/dcn10/dcn10_hwseq.c | 17 +-
.../amd/display/dc/hwss/dcn20/dcn20_hwseq.c | 11 +-
.../amd/display/dc/hwss/dcn314/dcn314_hwseq.c | 14 +-
.../amd/display/dc/hwss/dcn32/dcn32_hwseq.c | 32 +-
.../amd/display/dc/hwss/dcn32/dcn32_hwseq.h | 2 +-
.../amd/display/dc/hwss/dcn32/dcn32_init.c | 2 +-
.../amd/display/dc/hwss/dcn35/dcn35_hwseq.c | 99 ++--
.../amd/display/dc/hwss/dcn35/dcn35_hwseq.h | 12 +-
.../amd/display/dc/hwss/dcn35/dcn35_init.c | 2 +
.../amd/display/dc/hwss/dcn351/dcn351_init.c | 2 +
.../amd/display/dc/hwss/dcn401/dcn401_hwseq.c | 67 +--
.../amd/display/dc/hwss/dcn401/dcn401_hwseq.h | 2 +-
.../amd/display/dc/hwss/dcn401/dcn401_init.c | 2 +-
.../amd/display/dc/hwss/dcn42/dcn42_hwseq.c | 16 +-
.../amd/display/dc/hwss/dcn42/dcn42_hwseq.h | 2 +-
.../amd/display/dc/hwss/dcn42/dcn42_init.c | 2 +-
.../amd/display/dc/hwss/dcn50/dcn50_hwseq.c | 11 +-
.../amd/display/dc/hwss/dcn60/dcn60_init.c | 2 +-
.../drm/amd/display/dc/hwss/hw_sequencer.h | 108 ++--
.../drm/amd/display/dc/link/link_detection.c | 4 +-
.../gpu/drm/amd/display/dc/link/link_dpms.c | 17 +-
.../amd/display/dc/link/protocols/link_ddc.c | 17 +-
.../amd/display/dc/link/protocols/link_ddc.h | 1 -
.../dc/link/protocols/link_dp_training.c | 20 +-
.../display/dc/link/protocols/link_hdmi_frl.c | 12 +-
.../amd/display/dc/mpc/dcn401/dcn401_mpc.c | 18 +-
.../dcn60/dcn60_soc_and_ip_translator.c | 39 +-
.../amd/display/include/link_service_types.h | 1 +
.../amd/display/modules/power/power_replay.c | 6 +-
59 files changed, 853 insertions(+), 563 deletions(-)
--
2.34.1
