https://bugzilla.kernel.org/show_bug.cgi?id=50551
Summary: ACPI uses acpi_video0 instead of intel_backlight for
Intel GMA 4500M
Product: ACPI
Version: 2.5
Kernel Version: 3.6.6
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Video
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: No
The only way to make the backlight for the Intel GMA 4500M working in Xorg, is
to set the 'Backlight' device option to 'intel_backlight'.
In BUG#35072, Daniel Vetter said that this should be blacklisted from ACPI
since the userspace driver will pick the intel backlight.
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