Comment 15 for bug 543036

> To be sure, can you please check whether pressing Ctrl+Alt+F1 (to switch to a text console) and then Ctrl+Alt+F7 or Ctrl+Alt+F8 (to switch back to the graphical desktop) will cure the hang?
I can not switch. What exactly I do:
1. Press Fn one or few second, or Fn and of F1-F12 buttons (It's also take one or few seconds).
If I press and release in a short time problem not reproduced.
2. Launch "sudo /lib/udev/keymap -i input/event4". Because I press Fn button before keymap tool put many empty lines to stdout.
3. Try to switch to another VT as usual, but without success. Keymap show scancodes of Ctrl, Alt and F1, but system not switch to first VT. (I also try other VT's with same result)
Result of this try you can see in attached log - many empty lines generated by pressing Fn button, and Ctrl, Alt, F1 scancodes.

Also I try to launch keymap tool in VT - it's suddenly, but hangs bug not reproduced in VT at all - only in GUI (I try both of Gnome and KDE). Fn button still not generate scancode, in keymap launchad in VT tool too.

> Also, can you please doublecheck that you ran keymap against the correct input device? Do you see scan codes for the other keys there?
Yes, sure. All other keyboard button, except Fn button.