http://bugzilla.kernel.org/show_bug.cgi?id=14856
Summary: no brightness control on NB samsung x120
Product: ACPI
Version: 2.5
Kernel Version: 2.6.30-32
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Video
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: No
Created an attachment (id=24246)
--> (http://bugzilla.kernel.org/attachment.cgi?id=24246)
dmesg
I have a vanilla kernel with my custom config.
In /sys/devices/virtual/backlight/acpi_video0 present:
actual_brightness (value 3)
bl_power (value 0)
brightness (value 3)
max_brightness (value 3)
event (empty)
When booting there is some ACPI warnings:
ACPI Warning: _BQC returned an invalid level (20090903/video-631)
ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no)
ACPI: I/O resource 0000:00:1f.3 [0x1c00-0x1c1f] conflicts with ACPI region SMBI
[0x1c00-0x1c0f]
ACPI: If an ACPI driver is available for this device, you should use it instead
of the native driver
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