ubuntu-x-swat team mailing list archive

[Martin Pitt <martin.pitt@xxxxxxxxxx>]

Right, that shows it: It first tries the XBACKLIGHT extension:

TI:17:40:53	TH:0x840f168	FI:gpm-brightness-xrandr.c	FN:gpm_brightness_xrandr_setup_display,170
 - No outputs have backlight property
TI:17:40:53	TH:0x840f168	FI:gpm-brightness-xrandr.c	FN:gpm_brightness_xrandr_init,718
 - no XRANDR extension, so aborting init

but apparently your video driver doesn't support that. What video card
do you have?

g-p-m falls back to hal when xrandr doesn't work, but hal does not see
any panel either:

TI:17:40:53	TH:0x840f168	FI:gpm-brightness-hal.c	FN:gpm_brightness_hal_init,462
 - No devices of capability laptop_panel

So apparently your brightness keys are hardwired, so that they work
without the operating system's support. But without detecting the
backlight device, g-p-m is unable to determine the current brightness
level and give a notification for it.

** Package changed: gnome-power-manager (Ubuntu) => xorg (Ubuntu)

** Changed in: xorg (Ubuntu)
   Importance: Medium => Low

** Changed in: xorg (Ubuntu)
       Status: Incomplete => Confirmed

** Changed in: xorg (Ubuntu)
     Assignee: Martin Pitt (pitti) => (unassigned)

** Summary changed:

- Acer Aspire One: OSD for brightness keys not working properly
+ Acer Aspire One: no xrandr backlight device

-- 
Acer Aspire One: no xrandr backlight device
https://bugs.launchpad.net/bugs/441825
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