I can confirm this bug on a Zepto Znote 6615WD with up-to-date Ubuntu
Intrepid i386.
In fact the problem seems that X.org sends continuous KeyPress/KeyRelease
events for those keys after they have been pressed just once, as revealed by
the following xev output:
(first assign raise/lower volume to another keystroke)
…
KeyPress event, serial 34, synthetic NO, window 0x3e00001,
root 0x1a6, subw 0x0, time 801137, (570,359), root:(577,409),
state 0x0, keycode 123 (keysym 0x1008ff13, XF86AudioRaiseVolume),
same_screen YES,
XLookupString gives 0 bytes:
XmbLookupString gives 0 bytes:
XFilterEvent returns: False
KeyRelease event, serial 34, synthetic NO, window 0x3e00001,
root 0x1a6, subw 0x0, time 801203, (570,359), root:(577,409),
state 0x0, keycode 123 (keysym 0x1008ff13, XF86AudioRaiseVolume),
same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False
KeyPress event, serial 34, synthetic NO, window 0x3e00001,
root 0x1a6, subw 0x0, time 801203, (570,359), root:(577,409),
state 0x0, keycode 123 (keysym 0x1008ff13, XF86AudioRaiseVolume),
same_screen YES,
XLookupString gives 0 bytes:
XmbLookupString gives 0 bytes:
XFilterEvent returns: False
KeyRelease event, serial 34, synthetic NO, window 0x3e00001,
root 0x1a6, subw 0x0, time 801237, (570,359), root:(577,409),
state 0x0, keycode 123 (keysym 0x1008ff13, XF86AudioRaiseVolume),
same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False
KeyPress event, serial 34, synthetic NO, window 0x3e00001,
root 0x1a6, subw 0x0, time 801237, (570,359), root:(577,409),
state 0x0, keycode 123 (keysym 0x1008ff13, XF86AudioRaiseVolume),
same_screen YES,
XLookupString gives 0 bytes:
XmbLookupString gives 0 bytes:
XFilterEvent returns: False
KeyRelease event, serial 34, synthetic NO, window 0x3e00001,
root 0x1a6, subw 0x0, time 801302, (570,359), root:(577,409),
state 0x0, keycode 123 (keysym 0x1008ff13, XF86AudioRaiseVolume),
same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False
…
Notice that if I close xev then re-launch it, it does not receive those
events until I press that key again.
--
Intrepid AMD64 regression: Zepto 6625WD audio keyboard keys don't work
correctly anymore
https://bugs.launchpad.net/bugs/278103
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