[Bug 97883] [i915] intel_backlight does not function - Lenovo X1 Yoga OLED

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97883

--- Comment #5 from Dan Sanders <dan at ified.ca> ---
I was not able to identify any changed behavior with this setting. Relevant log
output appears to be:

[    1.815585] [drm:intel_dp_read_dpcd] DPCD: 12 0a 84 41 00 00 01 80 02 00 00
00 0f 0b 00
[    1.816123] [drm:intel_edp_init_dpcd] Detected EDP PSR Panel.
[    1.816434] [drm:intel_edp_init_dpcd] EDP DPCD : 02 00 00

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