Found a patch, not verified yet.
commit e8b7eb66738f559da1688ef3e4038180d7343547
Author: Hans de Goede <hdego...@redhat.com>
Date: Tue Oct 5 22:23:19 2021 +0200
platform/x86: thinkpad_acpi: Get privacy-screen / lcdshadow ACPI handles
only once
Get the privacy-screen / lcdshadow ACPI handles once and cache them,
instead of retrieving them every time we need them.
Reviewed-by: Emil Velikov <emil.l.veli...@gmail.com>
Reviewed-by: Lyude Paul <ly...@redhat.com>
Reviewed-by: Mark Pearson <markpear...@lenovo.com>
Signed-off-by: Hans de Goede <hdego...@redhat.com>
Link:
https://patchwork.freedesktop.org/patch/msgid/20211005202322.700909-8-hdego...@redhat.com
** Tags added: oem-priority originate-from-1956808 sutton
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https://bugs.launchpad.net/bugs/1966061
Title:
thinkpad_acpi: Support privacy-screen
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