This problem has not been solved yet it appears. I can confirm it is not working on a Dell Latitude E5440 with Ubuntu 12.04 LTS, kernel 3.11.0-24-generic. The FN-F8 key is still not working correctly. I get similar key scan codes as JeffH posted:
I pressed FN-F8 twice here, and then FN-Arrow up (brightness) # acpi_listen -c 1 ^[p ^[p ^@video LCD 00000086 00000000 Here I pressed FN-Arrow up (brightness) first and then FN-F8 # showkey kb mode was UNICODE [ if you are trying this under X, it might not work since the X server is also reading /dev/console ] press any key (program terminates 10s after last keypress)... keycode 28 release keycode 225 press keycode 225 release keycode 125 press keycode 25 press keycode 25 release keycode 125 release -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/722377 Title: [Dell Latitude E6400] Switch display Fn+F8 not working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/722377/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
