http://bugzilla.kernel.org/show_bug.cgi?id=11647
Summary: Multiple virtual ACPI backlight devices created for a
single LCD
Product: ACPI
Version: 2.5
KernelVersion: 2.6.27-rc7
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Config-Tables
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
Distribution: Ubuntu 8.10
Hardware Environment: Dell Inspiron 1420, XPS M1330, Inspiron 1525
Problem Description:
It appears that the DSDT from these machines is causing multiple virtual
backlight devices to get created in /sys. Likely this is because the DSDT will
work both with the discrete and uma case.
Steps to reproduce:
Browse /sys tree for directory containing backlight devices. Observe that
multiple backlight devices exist and are functional.
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