Ubuntu
hal package

  1. Bug #76274
  2. Comment #4

Comment 4 for bug 76274

Revision history for this message
Paul Sladen (sladen) wrote :

This is more likely a 'hal' or kernel issue:

  /usr/share/hal/scripts/hal-system-lcd-set-brightness

Currently has the following code for Sonys:

  elif [ "$HAL_PROP_LAPTOP_PANEL_ACCESS_METHOD" = "sony" ]; then
        # echo "{1..8}" > /proc/acpi/sony/brightness
        # http://popies.net/sonypi/2.6-sony_acpi4.patch
        echo "$((value + 1))" > $HAL_PROP_LINUX_ACPI_PATH

Does this work on your laptop. Could you also please include the DMI decode data for your laptop as detailed on the HotkeyResearch page above so that we can identify your laptop.