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[Arancaytar <arancaytar.ilyaran@xxxxxxxxx>]

Public bug reported:

Binary package hint: xserver-xorg

I ran xev to print the X events that show what happens. In the
beginning, all clicks occurring in the xev test window were recorded
normally:

ButtonPress event, serial 32, synthetic NO, window 0x4600001,
    root 0x1ad, subw 0x0, time 664353, (57,100), root:(391,292),
    state 0x10, button 1, same_screen YES

ButtonRelease event, serial 32, synthetic NO, window 0x4600001,
    root 0x1ad, subw 0x0, time 664601, (57,100), root:(391,292),
    state 0x110, button 1, same_screen YES

Then, I pressed an XF86 key (XF86Favorites, in this case):

KeyPress event, serial 32, synthetic NO, window 0x4600001,
    root 0x1ad, subw 0x0, time 677302, (57,102), root:(391,294),
    state 0x10, keycode 164 (keysym 0x1008ff30, XF86Favorites), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

ButtonPress event, serial 35, synthetic NO, window 0x4600001,
    root 0x1ad, subw 0x0, time 677352, (57,102), root:(391,294),
    state 0x10, button 1, same_screen YES

KeyRelease event, serial 35, synthetic NO, window 0x4600001,
    root 0x1ad, subw 0x0, time 677446, (57,102), root:(391,294),
    state 0x110, keycode 164 (keysym 0x1008ff30, XF86Favorites), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

Firstly, pressing the key generates a phantom left-click event, as shown
above. Secondly, after this, left-click events (button 1) are no longer
recorded at all, though right-click events still work, as do further
key-press events (including XF86 keys). The left click will remain non-
functional until Xorg is restarted.

This bug began occurring immediately on upgrading to Maverick Meerkat.

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New

-- 
Pressing XF86 keys breaks left-click
https://bugs.launchpad.net/bugs/661662
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