http://bugzilla.kernel.org/show_bug.cgi?id=15528
Summary: LCD Brightness Acer Aspire 5740
Product: ACPI
Version: 2.5
Kernel Version: 2.6.34-rc1
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Video
AssignedTo: acpi_power-vi...@kernel-bugs.osdl.org
ReportedBy: k...@kylegchristensen.com
Regression: No
Cannot change LCD Brightness of Acer Aspire 5740-6491
Attaching logs of:
lspci -vv
acpidump
cat /proc/interrupts
xrandr attempts to change brightness
/proc/acpi/dsdt
noumena / # cat /sys/class/backlight/acpi_video0/brightness
0
noumena / # cat /sys/class/backlight/acpi_video0/actual_brightness
0
noumena / # cat /sys/class/backlight/acpi_video0/max_brightness
9
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