ubuntu-x-swat team mailing list archive

[Dongxu Li <500658@xxxxxxxxxxxxxxxxxx>]

yes, I can confirm this bug exists in 10.10 maverick.

To reproduce the bug:
randomly touch the upper-left corner of the touchpad, usually within seconds, the mouse pointer jumps to X root:(0,0), i.e., the upper-left corner of screen, and trying to move the pointer is futile thereafter.

A way to workaround, hit Alt-F7 (move window), then, the pointer jumps
and can be moved again.

I found no error message in logs, so I try to log X events using xev. A
sample of xev output is attached. When the pointer stuck, pointer moving
events are recorded as,

MotionNotify event, serial 31, synthetic NO, window 0x3800001,
    root 0xaf, subw 0x0, time 2940111, (-2,-2), root:(0,0),
    state 0x0, is_hint 0, same_screen YES

MotionNotify event, serial 31, synthetic NO, window 0x3800001,
    root 0xaf, subw 0x0, time 2940120, (-2,-2), root:(0,0),
    state 0x0, is_hint 0, same_screen YES


** Attachment added: "xev output showing mouse pointer stuck to root window (0,0)"
   https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/500658/+attachment/1728495/+files/xev.txt

-- 
pointer stuck in upper-left corner while using touchpad
https://bugs.launchpad.net/bugs/500658
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xserver-xorg-input-synaptics in ubuntu.