Tested the full series (1/2 + 2/2) on top of linux-source-7.0 (7.0.10-1~bpo13+1, Debian trixie-backports) with a local adaptation for the for_each_intel_crtc API difference between 7.0.x and drm-tip.
Test: cold replug of a ThinkPad USB-C Dock Gen2 driving two monitors over DP-MST (10s unplugged), with USB_QUIRK_NO_LPM applied for 17ef:a391 and 17ef:a392. Result: zero fec_enable fastset mismatches in dmesg (previously 40 hits in a ~3s window on unpatched drm-tip for the same replug) and no i915/DRM events at all — displays recovered without a full modeset. Tested-by: Stephen Fuhry <[email protected]>
