Here are the relevant parts of my lshal output: udi = '/org/freedesktop/Hal/devices/computer_backlight_0' info.addons = {'hald-addon-generic-backlight'} (string list) info.capabilities = {'laptop_panel'} (string list) info.category = 'laptop_panel' (string) info.interfaces = {'org.freedesktop.Hal.Device.LaptopPanel'} (string list) info.parent = '/org/freedesktop/Hal/devices/computer' (string) info.product = 'Generic Backlight Device' (string) info.subsystem = 'backlight' (string) info.udi = '/org/freedesktop/Hal/devices/computer_backlight_0' (string) laptop_panel.access_method = 'general' (string) laptop_panel.brightness_in_hardware = true (bool) laptop_panel.num_levels = 1 (0x1) (int) linux.hotplug_type = 2 (0x2) (int) linux.subsystem = 'backlight' (string) linux.sysfs_path = '/sys/devices/virtual/backlight/thinkpad_screen' (string)
udi = '/org/freedesktop/Hal/devices/computer_backlight' info.addons = {'hald-addon-generic-backlight'} (string list) info.capabilities = {'laptop_panel'} (string list) info.category = 'laptop_panel' (string) info.interfaces = {'org.freedesktop.Hal.Device.LaptopPanel'} (string list) info.parent = '/org/freedesktop/Hal/devices/computer' (string) info.product = 'Generic Backlight Device' (string) info.subsystem = 'backlight' (string) info.udi = '/org/freedesktop/Hal/devices/computer_backlight' (string) laptop_panel.access_method = 'general' (string) laptop_panel.brightness_in_hardware = true (bool) laptop_panel.num_levels = 16 (0x10) (int) linux.hotplug_type = 2 (0x2) (int) linux.subsystem = 'backlight' (string) linux.sysfs_path = '/sys/devices/virtual/backlight/acpi_video0' (string) I don't know why I have both a "computer_backlight" and a computer_backlight_0" entry. This is from a fresh install of Lucid RC on a Thinkpad W510 with the latest 195 series nvidia driver from the Ubuntu repo. It reports 16 levels, which is what I get in Windows (0 to 15). Right now I can only control brightness by switching to a TTY. i get 16 different levels there, and the up and down increments are the same. I don't currently have the "EnableBrightControl" option set in my xorg.conf. -- Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers https://bugs.launchpad.net/bugs/562005 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs