[Nix-dev] [drm:radeon_acpi_init [radeon]] *ERROR* Cannot find a backlight controller

Evan Rowley rowley.evan at gmail.com
Sun Jun 12 17:17:15 CEST 2016


I received this on a Lenovo ThinkPad E465. It's hardware should be
similar to any E565, E455, or E555. Has anyone seen a message like
this? Any ideas on how to fix it so that the backlight controller is
detected?

-- 
 - EJR


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