Display backlight level slider does not reflect programmatic change to backlight level
Submitted by Saurav Sengupta
If the display backlight level is changed in any manner other than using the keyboard controls or the backlight slider on the system menu, the slider does not get updated to show the new backlight level. For example, using a command like 'echo BACKLIGHT_LEVEL > /sys/class/backlight/DEVICE/brightness' changes the display backlight, but the slider in the system menu remains at the old level and does not change to show the new one. The Power settings panel shows the new level correctly, so it's just the slider in the Shell's menu that needs updating.