https://bugzilla.kernel.org/show_bug.cgi?id=97381
Bug ID: 97381
Summary: Delay in backlight adjusting
Product: ACPI
Version: 2.5
Kernel Version: 4.0+
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: EC
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Created attachment 175151
--> https://bugzilla.kernel.org/attachment.cgi?id=175151&action=edit
dmesg
Laptop: Lenovo Z50
Affected Kernels: 4.0+
Starting from kernel 4.0, pressing Fn+F11/F12 to adjust backlight has a long
delay (2+ seconds).
Last working kernel is 3.19.3. I have tried 4.1rc1 which is not fixed.
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