[PATCH 0/2] drm/amd/display: Fix missing HF-EEODB blocks in EDID copies

From: Timo Prömer

Date: Mon Jul 13 2026 - 14:39:00 EST


Fix an issue in amd/display where devices with HF-EEODB blocks would
be missing these additional blocks during EDID reads.

The driver previously used `edid->extensions + 1` to calculate the
number of blocks to copy, but the base extension flag does not include
HF-EEODB blocks.

Use drm_edid_block_count() directly to get the true number of blocks,
ensuring that HF-EEODB blocks are properly copied.

Timo Prömer (2):
drm/edid: Export drm_edid_block_count()
drm/amd/display: Use drm_edid_block_count() instead of raw extensions

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 5 ++++-
drivers/gpu/drm/drm_edid.c | 3 ++-
include/drm/drm_edid.h | 1 +
3 files changed, 7 insertions(+), 2 deletions(-)

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2.55.0