https://bugzilla.kernel.org/show_bug.cgi?id=108971
Bug ID: 108971
Summary: [Samsung NP530U4E-K02PL] Cannot change backlight
Product: ACPI
Version: 2.5
Kernel Version: 4.4.0-040400rc3-generic
Hardware: Intel
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Video
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Created attachment 196491
--> https://bugzilla.kernel.org/attachment.cgi?id=196491&action=edit
acpidump output
It is not possible to change screen backlight. A workaround is to add
a flag acpi_osi=
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