** Summary changed: - unable to adjust screen brightness on sony vaio vgn-sz650n + unable to adjust screen brightness on recent Sony Vaio notebooks
** Description changed: - Binary package hint: linux-source-2.6.22 + Fn keys don't work for dimming the screen, though they do stimulate the + sonybright.sh script. - Ubuntu Gutsy amd64, new install, updated. + xbacklight works if the notebook has an Intel 965 (x3100) display + adapter, but is subject to bug #176888 (won't work on Hardy, bad XRandR + setting). - Fn keys don't work for dimming the screen, and no other method works. + There is no known method for setting the backlight on newer Vaios with + nVidia GeForce 8 series adapters, though it is possible to pseudo-dim by + making the LCD blacker (this unfortunately doesn't help with power- + saving). + + There are 2 problems here: + 1) The Vaio's LED screen is really very bright when burning at 100% and is hard to look at for any period + 2) Battery life suffers + + Pretty much all the newer Vaios (2007 onwards) have some combination of + these graphics adapters so this bug should be widespread (and much + appreciated when fixed!). I've tried hacking xbacklight into + sonybright.sh but I'm not very competent at shell script. + The sony_laptop module is loaded: :~$ lsmod |grep -i sony sony_laptop 36520 0 tail -f /var/log/acpid Reduce screen brightness (sun -), Fn+F5 ------------------- [Mon Dec 3 12:54:31 2007] received event "sony/hotkey SPIC 00000001 00000010" [Mon Dec 3 12:54:31 2007] notifying client 5304[107:116] [Mon Dec 3 12:54:31 2007] notifying client 5616[0:0] [Mon Dec 3 12:54:31 2007] notifying client 5616[0:0] [Mon Dec 3 12:54:31 2007] executing action "/etc/acpi/sonybright.sh down" [Mon Dec 3 12:54:31 2007] BEGIN HANDLER MESSAGES cat: /sys/class/backlight/sony/actual_brightness: No such file or directory /etc/acpi/sonybright.sh: line 5: [: : integer expression expected /etc/acpi/sonybright.sh: line 12: /sys/class/backlight/sony/brightness: No such file or directory [Mon Dec 3 12:54:31 2007] END HANDLER MESSAGES [Mon Dec 3 12:54:31 2007] action exited with status 1 [Mon Dec 3 12:54:31 2007] completed event "sony/hotkey SPIC 00000001 00000010" [Mon Dec 3 12:54:31 2007] received event "sony/hotkey SPIC 00000001 0000003b" [Mon Dec 3 12:54:31 2007] notifying client 5304[107:116] [Mon Dec 3 12:54:31 2007] notifying client 5616[0:0] [Mon Dec 3 12:54:31 2007] notifying client 5616[0:0][Mon Dec 3 12:54:33 2007] received event "sony/hotkey SPIC 00000001 00000011" ------------------------------ Increase screen brightness (sun +), Fn+F6 ------------------------------ [Mon Dec 3 12:54:33 2007] notifying client 5304[107:116] [Mon Dec 3 12:54:33 2007] notifying client 5616[0:0] [Mon Dec 3 12:54:33 2007] notifying client 5616[0:0] [Mon Dec 3 12:54:33 2007] executing action "/etc/acpi/sonybright.sh up" [Mon Dec 3 12:54:33 2007] BEGIN HANDLER MESSAGES cat: /sys/class/backlight/sony/actual_brightness: No such file or directory /etc/acpi/sonybright.sh: line 5: [: : integer expression expected /etc/acpi/sonybright.sh: line 21: /sys/class/backlight/sony/brightness: No such file or directory [Mon Dec 3 12:54:33 2007] END HANDLER MESSAGES [Mon Dec 3 12:54:33 2007] action exited with status 1 [Mon Dec 3 12:54:33 2007] completed event "sony/hotkey SPIC 00000001 00000011" [Mon Dec 3 12:54:33 2007] received event "sony/hotkey SPIC 00000001 0000003b" [Mon Dec 3 12:54:33 2007] notifying client 5304[107:116] [Mon Dec 3 12:54:33 2007] notifying client 5616[0:0] [Mon Dec 3 12:54:33 2007] notifying client 5616[0:0] [Mon Dec 3 12:54:33 2007] completed event "sony/hotkey SPIC 00000001 0000003b" ------------------------------- uname -a Linux samantha 2.6.22-14-generic #1 SMP Sun Oct 14 21:45:15 GMT 2007 x86_64 GNU/Linux -- unable to adjust screen brightness on recent Sony Vaio notebooks https://bugs.launchpad.net/bugs/173652 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
