[Public]

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 - 
d2722b16889647fb3fb22933442c5ab9e7c93361 -> drm/amdgpu/acpi: Reduce 
amdgpu_acpi_detect stack usage) with new patches added on top of it.

Tested on Ubuntu 24.04.3, on Wayland and X11, using Gnome.

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: Chenyu Chen <[email protected]>
Sent: Tuesday, December 9, 2025 3:55 AM
To: [email protected]
Cc: Wentland, Harry <[email protected]>; Li, Sun peng (Leo) 
<[email protected]>; Pillai, Aurabindo <[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]>; Chen, Chen-Yu 
<[email protected]>
Subject: [PATCH 00/15] DC Patches Dec 15 2025

This DC patchset brings improvements in multiple areas. In summary, we 
highlight:

 - Replay Video Conferencing V2
 - Fix scratch registers offsets for DCN35 and DCN351
 - Fix DP no audio issue
 - Add use_max_lsw parameter
 - Fix presentation of Z8 efficiency
 - Add USB-C DP Alt Mode lane limitation in DCN32
 - Support DRR granularity
 - Don't disable DPCD mst_en if sink connected
 - Set enable_legacy_fast_update to false for DCN35/351
 - Split update_planes_and_stream_v3 into parts (V2)

 Cc: Daniel Wheeler <[email protected]>

Alex Hung (1):
  drm/amd/display: Revert "Fix pbn to kbps Conversion"

Austin Zheng (1):
  drm/amd/display: Fix presentation of Z8 efficiency

Charlene Liu (2):
  drm/amd/display: Fix DP no audio issue
  drm/amd/display: DPP low mem pwr related adjustment -Part I

Dominik Kaszewski (1):
  drm/amd/display: Split update_planes_and_stream_v3 into parts (V2)

Fudongwang (1):
  drm/amd/display: Set enable_legacy_fast_update to false for DCN35/351

Oleh Kuzhylnyi (1):
  drm/amd/display: Add use_max_lsw parameter

Peichen Huang (1):
  drm/amd/display: Don't disable DPCD mst_en if sink connected

Ray Wu (2):
  drm/amd/display: Fix scratch registers offsets for DCN35
  drm/amd/display: Fix scratch registers offsets for DCN351

Taimur Hassan (2):
  drm/amd/display: [FW Promotion] Release 0.1.40.0
  drm/amd/display: Promote DC to 3.2.363

chunttso (1):
  drm/amd/display: Replay Video Conferencing V2

hewitt (1):
  drm/amd/display: Add USB-C DP Alt Mode lane limitation in DCN32

weiguali (1):
  drm/amd/display: Support DRR granularity

 .../display/amdgpu_dm/amdgpu_dm_mst_types.c   |  59 +--
 drivers/gpu/drm/amd/display/dc/core/dc.c      | 351 +++++++++++++++++-
 .../gpu/drm/amd/display/dc/core/dc_stream.c   |  31 +-
 drivers/gpu/drm/amd/display/dc/dc.h           |   2 +-
 drivers/gpu/drm/amd/display/dc/dc_dp_types.h  |   1 +
 drivers/gpu/drm/amd/display/dc/dc_stream.h    |  31 +-
 drivers/gpu/drm/amd/display/dc/dc_types.h     |  14 +
 .../dc/dio/dcn32/dcn32_dio_link_encoder.c     |  15 +-
 .../dml21/inc/dml_top_display_cfg_types.h     |   1 +
 .../src/dml2_core/dml2_core_dcn4_calcs.c      |   5 +-
 .../src/dml2_core/dml2_core_shared_types.h    |   1 +
 .../drm/amd/display/dc/dpp/dcn10/dcn10_dpp.h  |   1 +
 .../amd/display/dc/dpp/dcn401/dcn401_dpp.h    |   9 +
 .../display/dc/dpp/dcn401/dcn401_dpp_dscl.c   | 102 +++--
 .../amd/display/dc/hwss/dce110/dce110_hwseq.c |   8 +-
 .../amd/display/dc/hwss/dcn401/dcn401_hwseq.c |   1 -
 .../gpu/drm/amd/display/dc/link/link_dpms.c   |  16 +-
 .../dc/link/protocols/link_dp_capability.c    |   7 +
 .../dc/resource/dcn35/dcn35_resource.c        |  10 +-
 .../dc/resource/dcn351/dcn351_resource.c      |  10 +-
 .../dc/resource/dcn401/dcn401_resource.h      |   1 +
 .../gpu/drm/amd/display/dmub/inc/dmub_cmd.h   |  70 ++--
 .../gpu/drm/amd/display/include/dpcd_defs.h   |   1 +
 23 files changed, 613 insertions(+), 134 deletions(-)

--
2.43.0

Reply via email to