https://bugzilla.kernel.org/show_bug.cgi?id=68751
Bug ID: 68751
Summary: Aspire V5-431: backlight acpi_video0 not working
Product: ACPI
Version: 2.5
Kernel Version: 3.13-rc8
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Video
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Created attachment 122191
--> https://bugzilla.kernel.org/attachment.cgi?id=122191&action=edit
acpidump
My laptop (Aspire V5-431) gets an acpi_video0 entry in /sys/class/backlight/
that is not working, alongside an intel_backlight entry that *is* working.
I see the following entry in the kernel log:
[ 19.515016] acer_wmi: Brightness must be controlled by acpi video driver
By using 'acpi_backlight=vendor' acpi_video0 disappears.
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