I tried using acpi_listen and the values for brightness are immediately updated even though the OSD does not appear most of the time. Here's an example: # acpi_listen & [1] 27934 # while sleep 1 ; do cat /sys/devices/pci0000:00/0000:00:02.0/backlight/acpi_video0/actual_brightness ; done 4 video DD02 00000086 00000000 5 video DD02 00000086 00000000 6 video DD02 00000086 00000000 7 video DD02 00000086 00000000 8 video DD02 00000086 00000000 9 9 video DD02 00000087 00000000 8 video DD02 00000087 00000000 7 video DD02 00000087 00000000 6 video DD02 00000087 00000000 video DD02 00000087 00000000 4 video DD02 00000087 00000000 video DD02 00000087 00000000 video DD02 00000087 00000000 1 video DD02 00000087 00000000 video DD02 00000087 00000000 0
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/741223 Title: Natty: Unable to adjust brightness for Acer Aspire 5731, requires reboot to reflect change -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
