linux-drivers/
drivers/gpu/drm/amd/display/amdgpu_dm

AMD Radeon Display Manager (amdgpu DM/DC)

The display side of AMD's modern graphics driver: it handles mode-setting, monitor detection, HDMI and DisplayPort output, and the connection between the Linux DRM layer and AMD's shared Display Core code. It powers the screens on essentially every AMD Radeon GPU and Ryzen APU from the Vega and Navi generations through the latest RDNA 4 cards and embedded Ryzen parts sold in 2025.

keep conf=0.97 deploy=high replacement=none subsystem=gpu category=graphics-display
97%

recommendation

It should stay in the kernel because it is the display half of the modern amdgpu graphics stack, driving the monitors, HDMI/DisplayPort outputs, and mode-setting on every recent AMD GPU. Upstream activity is heavy, with fixes landing as recently as March 2026 and being backported to stable kernels, and AMD is still shipping brand-new hardware that depends on it, including the Radeon RX 9070 discrete cards and Ryzen Embedded 8000 SoCs.

repository signals

34 files
33,952 source lines
1,369 commits, 5y
+27,019 / −13,157 lines added / removed, 5y
218 authors, 5y
monthly commits · 2021-04-21 → 2026-04-21 · 1,369 total · active in 60/61 months
2021 2022 2023 2024 2025 2026 2021-04: 23 commits · +500 −235 2021-05: 33 commits · +401 −106 2021-06: 13 commits · +326 −192 2021-07: 19 commits · +807 −173 2021-08: 20 commits · +368 −147 2021-09: 21 commits · +298 −168 2021-10: 23 commits · +422 −203 2021-11: 39 commits · +432 −268 2021-12: 12 commits · +353 −36 2022-01: 27 commits · +601 −123 2022-02: 19 commits · +327 −132 2022-03: 15 commits · +564 −209 2022-04: 15 commits · +175 −176 2022-05: 15 commits · +209 −114 2022-06: 18 commits · +126 −114 2022-07: 19 commits · +3,029 −2,381 2022-08: 20 commits · +272 −281 2022-09: 6 commits · +45 −34 2022-10: 27 commits · +759 −414 2022-11: 29 commits · +1,235 −462 2022-12: 18 commits · +206 −196 2023-01: 38 commits · +399 −176 2023-02: 38 commits · +379 −319 2023-03: 34 commits · +305 −240 2023-04: 14 commits · +119 −48 2023-05: 16 commits · +373 −149 2023-06: 27 commits · +603 −289 2023-07: 15 commits · +362 −203 2023-08: 25 commits · +393 −119 2023-09: 23 commits · +248 −220 2023-10: 37 commits · +527 −1,101 2023-11: 43 commits · +1,423 −192 2023-12: 36 commits · +875 −188 2024-01: 26 commits · +624 −173 2024-02: 24 commits · +275 −123 2024-03: 29 commits · +305 −182 2024-04: 22 commits · +441 −120 2024-05: 21 commits · +468 −207 2024-06: 30 commits · +338 −128 2024-07: 19 commits · +662 −167 2024-08: 22 commits · +280 −136 2024-09: 35 commits · +370 −298 2024-10: 23 commits · +337 −201 2024-11: 7 commits · +63 −39 2024-12: 25 commits · +237 −121 2025-01: 12 commits · +254 −30 2025-02: 40 commits · +446 −199 2025-03: 28 commits · +535 −267 2025-04: 28 commits · +364 −233 2025-05: 18 commits · +142 −120 2025-06: 17 commits · +223 −88 2025-07: 21 commits · +270 −95 2025-08: 16 commits · +202 −68 2025-09: 28 commits · +440 −130 2025-10: 12 commits · +175 −32 2025-11: 29 commits · +1,383 −294 2025-12: 14 commits · +155 −90 2026-01: 26 commits · +348 −82 2026-02: 10 commits · +144 −114 2026-03: 6 commits · +18 −9 2026-04: 0 commits · +0 −0

sources

  1. kernel.org

    amdgpu_dm is the AMDGPU Display Manager layer that mediates between DRM and AMD Display Core, i.e. an active core part of the modern amdgpu stack rather than a legacy side driver.

  2. spinics.net

    A March 23, 2026 amd-gfx patch directly touched amdgpu_dm, showing current upstream development and bug-fix traffic.

  3. spinics.net

    That amdgpu_dm fix was also queued for stable, indicating active maintenance and real deployed users.

  4. amd.com

    AMD was still selling new Linux-supported Radeon RX 9000-series discrete GPUs in 2025/2026, which rely on the amdgpu display stack.

  5. amd.com

    AMD Ryzen Embedded 8000 series remained current for industrial deployments, with integrated RDNA graphics that also use the amdgpu display path.

codex reasoning notes (technical)

Local shell inspection showed `CONFIG_DRM_AMD_DC` is enabled for AMDGPU display support and recent local commits hit this directory through 2026-03-24. Cited URLs were obtained via web search: kernel docs page (turn2search2), recent amd-gfx patch mail (turn0search2), stable backport mail (turn0search5), AMD Radeon RX 9070 product page (turn1search0), and AMD Ryzen Embedded 8000 page (turn1search1). No removal/deprecation thread surfaced; evidence instead shows heavy current maintenance plus ongoing new discrete and embedded AMD GPU shipments, so this should be kept.