Intel Alder Lake-P CPUs to Feature Gen13 Display Engine w/ 16K Resolution Support

Intel’s (Open-Source) graphics driver team just posted the latest update for the Linux Kernel which adds support for the upcoming Alder Lake-P integrated graphics. It appears that the 12th Gen mobile processors will feature the Gen 12 Xe-LP graphics architecture, however, with the Display Engine upgrade to 13 (Display13/Xe_LPD).

This is a bit surprising as all Tiger Lake, Rocket Lake, Alder Lake-S, and DG1 all come with the default Gen 12-based GPU along with the Display 12, making ADL-P the only Intel lineup to feature the upgraded display engine. Some of the primary changes with Display 13 include support for 16K resolution, increased bandwidth requirement when Virtualization is active (VT-d) and certain power efficiency improvements.

  drm/i915/xelpd: add XE_LPD display characteristics
  drm/i915/xelpd: Handle proper AUX interrupt bits
  drm/i915/xelpd: Enhanced pipe underrun reporting
  drm/i915/xelpd: Define plane capabilities
  drm/i915/xelpd: Handle new location of outputs D and E
  drm/i915/xelpd: Add XE_LPD power wells
  drm/i915/xelpd: Increase maximum watermark lines to 255
  drm/i915/xelpd: Required bandwidth increases when VT-d is active
  drm/i915/xelpd: Add Wa_14011503030
  drm/i915/adl_p: Add dedicated SAGV watermarks
  drm/i915/adl_p: Extend PLANE_WM bits for blocks & lines



Computer hardware enthusiast, PC gamer, and almost an engineer. Former co-founder of Techquila (2017-2019), a fairly successful tech outlet. Been working on Hardware Times since 2019, an outlet dedicated to computer hardware and its applications.

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