After digging this issue more, I found that it's not only gnome-settings-daemon's (nor xfce-power-manager's) problem, but X key mapping's problem. There is no display toggle key defined in X, so X can receive the key 0x1af which is defined in kernel #define KEY_DISPLAYTOGGLE 0x1af /* Turn display (LCD) on and off */
That means all the applications based on X can get that keyevent. I'm actually a kernel engineer, so I need to find other guys to get involve this issue. And as far as I can see, this is not the easy one and take time to drive. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1000146 Title: [ASUS X101CH and 1015CX] the hotkey to turn on/off the display is not working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1000146/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs