The problem here is that the gsd-backlight-helper code used by the brightness applet prefers to always use 'acpi_video0' or whatever backlight device has type 'firmware'. This means that it will update /sys/class/backlight/acpi_video0/brightness, which does not work. Our test code will update the intel_backlight device, which does work but is meaningless because the OS doesn't use that same interface. Bottom line is that this is probably a firmware issue (but could possibly be a kernel issue). That's my $0.02
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1250401 Title: [Dell Inspiron 5737] brightness could not be controlled by the indicator applet "System settings -> Brightness and Lock"" but sysfs works To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-raring/+bug/1250401/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
