Just thought I would add to this. I have the same issue too with a Sony VAIO VGN-SZ3XWP, brightness works with the function keys but does not work using the sliders in gnome-power-manager. The output of gnome- power-manager can be seen below. Funny enough, it did work on a fresh install, but as soon as I installed nvidia-glx-new as opposed to nv drivers it stopped working.
The output seems to indicate that values are the same for before and after calculations so it does not do anything removed=0, finally=1 [gpm_screensaver_powersave_idle_changed] gpm-screensaver.c:102 (13:05:29): emitting powersave-idle-changed : (1) [powersave_idle_changed_cb] gpm-idle.c:335 (13:05:29): Received GS powesave idle changed: 1 [gpm_idle_set_mode] gpm-idle.c:98 (13:05:29): Doing a state transition: 1 [gpm_backlight_notify_system_idle_changed] gpm-backlight.c:632 (13:05:29): we were active for 57.843741s [gpm_backlight_notify_system_idle_changed] gpm-backlight.c:635 (13:05:29): changing powersave idle status to 1 [gpm_brightness_lcd_get_hw] gpm-brightness-lcd.c:116 (13:05:29): GetBrightness returned level: 7 [gpm_backlight_brightness_evaluate_and_set] gpm-backlight.c:378 (13:05:29): 1. currently set brightness 1.000000 [gpm_backlight_brightness_evaluate_and_set] gpm-backlight.c:415 (13:05:29): 2. battery change by nan, brightness 1.000000 [gpm_backlight_brightness_evaluate_and_set] gpm-backlight.c:453 (13:05:29): 3. idle change by 0.000000, brightness 1.000000 [gpm_backlight_brightness_evaluate_and_set] gpm-backlight.c:473 (13:05:29): 4. ambient scale 1.000000, brightness 1.000000 [gpm_brightness_lcd_get_hw] gpm-brightness-lcd.c:116 (13:05:29): GetBrightness returned level: 7 [gpm_backlight_brightness_evaluate_and_set] gpm-backlight.c:481 (13:05:29): values are the same, no action [gpm_info_event_log] gpm-info.c:594 (13:05:29): Adding 2 to the event log [hal_device_property_modified_cb] gpm-cell.c:258 (13:05:38): udi=/org/freedesktop/Hal/devices/computer_power_supply_battery_BAT1, key=battery.remaining_time, added=0, removed=0, finally=0 [hal_device_property_modified_cb] gpm-cell.c:258 (13:05:38): udi=/org/freedesktop/Hal/devices/computer_power_supply_battery_BAT1, key=battery.charge_level.rate, added=0, removed=0, finally=0 [hal_device_property_modified_cb] gpm-cell.c:258 (13:05:38): udi=/org/freedesktop/Hal/devices/computer_power_supply_battery_BAT1, key=battery.charge_level.current, added=0, removed=0, finally=0 [hal_device_property_modified_cb] gpm-cell.c:258 (13:05:38): udi=/org/freedesktop/Hal/devices/computer_power_supply_battery_BAT1, key=battery.reporting.current, added=0, removed=0, finally=0 [hal_device_property_modified_cb] gpm-cell.c:258 (13:05:38): udi=/org/freedesktop/Hal/devices/computer_power_supply_battery_BAT1, key=battery.reporting.rate, added=0, removed=0, finally=0 [hal_device_property_modified_cb] gpm-cell.c:258 (13:05:38): udi=/org/freedesktop/Hal/devices/computer_power_supply_battery_BAT1, key=battery.voltage.current, added=0, removed=0, finally=1 [gpm_screensaver_powersave_idle_changed] gpm-screensaver.c:102 (13:05:40): emitting powersave-idle-changed : (0) [powersave_idle_changed_cb] gpm-idle.c:335 (13:05:40): Received GS powesave idle changed: 0 [gpm_idle_set_mode] gpm-idle.c:98 (13:05:40): Doing a state transition: 0 [gpm_backlight_notify_system_idle_changed] gpm-backlight.c:604 (13:05:40): we have just been idle for 11.065723s [gpm_backlight_notify_system_idle_changed] gpm-backlight.c:635 (13:05:40): changing powersave idle status to 0 [gpm_brightness_lcd_get_hw] gpm-brightness-lcd.c:116 (13:05:40): GetBrightness returned level: 7 [gpm_backlight_brightness_evaluate_and_set] gpm-backlight.c:378 (13:05:40): 1. currently set brightness 1.000000 [gpm_backlight_brightness_evaluate_and_set] gpm-backlight.c:415 (13:05:40): 2. battery change by nan, brightness 1.000000 [gpm_backlight_brightness_evaluate_and_set] gpm-backlight.c:453 (13:05:40): 3. idle change by 0.000000, brightness 1.000000 [gpm_backlight_brightness_evaluate_and_set] gpm-backlight.c:473 (13:05:40): 4. ambient scale 1.000000, brightness 1.000000 [gpm_brightness_lcd_get_hw] gpm-brightness-lcd.c:116 (13:05:40): GetBrightness returned level: 7 [gpm_backlight_brightness_evaluate_and_set] gpm-backlight.c:481 (13:05:40): values are the same, no action [gpm_backlight_sync_policy] gpm-backlight.c:161 (13:05:40): choosing sensible default [gpm_backlight_sync_policy] gpm-backlight.c:163 (13:05:40): laptop, so use GPM_DPMS_METHOD_OFF [gpm_backlight_sync_policy] gpm-backlight.c:195 (13:05:40): BACKLIGHT parameters 0 0 540, method '4' [x11_sync_server_dpms_settings] gpm-dpms.c:130 (13:05:40): Syncing DPMS settings enabled=1 timeouts=0 0 0 [idle_changed_cb] gpm-manager.c:849 (13:05:40): Idle state changed: NORMAL [gpm_info_event_log] gpm-info.c:594 (13:05:40): Adding 4 to the event log -- [regression] gnome-power-manager laptop backlight not working on VAIO VGN-FSxxx https://bugs.launchpad.net/bugs/152731 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
