Fn F3 is the toggle for the touchpad in Gnome. In Xfce most of the
function keys work as expected except for Fn F3. Initially on booting
synclient reports TouchpadOff=1 even though the touchpad is functional.
Subsequently I can turn it on and off using synclient TouchpadOff=0 and
synclient TouchpadOff=1 respectively, and synclient properly reports the
status thereafter.
In a text console, showkey -s: 0x74 0xf4
xev reports on pressing Fn F3:
KeyPress event, serial 34, synthetic NO, window 0x3000001,
root 0xab, subw 0x3000002, time 3489713, (44,47), root:(672,258),
state 0x0, keycode 199 (keysym 0x1008ffa9, XF86TouchpadToggle),
same_screen YES,
XLookupString gives 0 bytes:
XmbLookupString gives 0 bytes:
XFilterEvent returns: False
KeyRelease event, serial 34, synthetic NO, window 0x3000001,
root 0xab, subw 0x3000002, time 3489713, (44,47), root:(672,258),
state 0x0, keycode 199 (keysym 0x1008ffa9, XF86TouchpadToggle),
same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False
I note that this reports the name XF86TouchpadToggle, yet it does nothing
detectable.
I suspect that something has blocked or changed the function.
I wonder if anybody has ideas on what might be broken. Alternatively a
script could capture the keypress and do the switching. (I found such a
script on the web.) I would prefer to fix what is broken just for the
satisfaction.
-Denis
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