https://bugs.freedesktop.org/show_bug.cgi?id=36257
Summary: backlight control not possible through xbacklight,
xfce4-power-manager on Lenovo X120e (AMD E-350)
Product: xorg
Version: 7.6
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/Radeon
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
Created an attachment (id=45655)
--> (https://bugs.freedesktop.org/attachment.cgi?id=45655)
xorg.log
When I trying to set the display brightness through xbacklight, I get:
"No outputs have backlight property"
Similarly, the backlight plugin in xfce4-power-manager says:
"No device found"
I can, however, successfully set the brightness of the LCD panel directly via
sysfs:
echo 1 >/sys/class/backlight/acpi_video0/brightness
echo 15 >/sys/class/backlight/acpi_video0/brightness
This is on an up to date xubuntu 11.04 Beta (xserver-xorg 7.6+4ubuntu3,
xserver-xorg-video-ati 6.14.0-0ubuntu4, kernel 2.6.39-rc3) on a Lenovo ThinkPad
X120e (Radeon HD 6310).
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