Backlight Change Notification?
Is there a decent (non-polling) way to get notified when a laptop panel’s backlight brightness changes? HAL exports methods to set and get the brightness level, as well as query the number of possible levels, but there doesn’t appear to be a way to get notified if the level changes. Calling org.freedesktop.Hal.LaptopPanel.GetBrightness() every five or […]