Adrian Betschart 54c998c55f drm/amd/display: Don't replace a sink mode that shares the native totals ... decide_crtc_timing_for_drm_display_mode() copies the native mode's CRTC timing into the requested mode when clock, htotal and vtotal match. That is meant for the modes amdgpu inserts itself: amdgpu_dm_create_common_mode() duplicates the native mode and changes only hdisplay and vdisplay, so those are sent with the native timing and scaled. A sink can also offer a real mode with the same clock and totals as its native mode. CTA-861 VIC 102 (4096x2160@60) and VIC 97 (3840x2160@60) both use 594 MHz and 4400x2250. With 3840x2160@60 as the preferred mode, a 4096x2160@60 request goes out with the 3840x2160 timing and the framebuffer scaled into it (dst 3840x2025 at y=67), while the AVI InfoFrame still carries VIC 102. A JVC projector then reports 3840x2160 and shows a corrupted right edge. 4096x2160@24, whose totals differ, is sent and displayed correctly. Inserted modes keep the native sync positions; a real mode with its own active width does not. Compare those too, so only inserted modes are patched. Fixes: 4562236b3b ("drm/amd/dc: Add dc display driver (v2)") Signed-off-by: Adrian Betschart <adrian.betschart@cinemaone.ch> Assisted-by: Claude-Code:claude-opus-5-5 Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Reviewed-by: Roman Li <roman.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> (cherry picked from commit 22f9a2da10) Cc: stable@vger.kernel.org		2026-10-07 13:13:32 -04:00
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amdgpu_dm	drm/amd/display: Don't replace a sink mode that shares the native totals	2026-10-07 13:13:32 -04:00
dc	drm/amd/display: Fix sanitizer check for the DML frame size limit	2026-10-01 17:18:05 -04:00
dmub	drm/amd/display: Add missing DMUB CACP and PR definitions	2026-08-06 12:43:44 -04:00
include	drm/amd/display: Enable DCN6 sources compilation	2026-08-06 09:53:32 -04:00
modules	drm/amd/display: Fix stale replay_events after mod_power stream removal	2026-10-01 17:18:05 -04:00
Kconfig	drm/amd/display: Add KUnit tests for amdgpu_dm_colorop	2026-06-03 13:41:32 -04:00
Makefile