Dongxu, I'm not able to understand the situation properly. When the cursor is stuck, you can log the xev events showing the stuck behavior.
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 But are you sure you cannot demonstrate this stuck behavior in VT, in evtest. It means you cannot reproduce the bug in VT, is it correct? What you have to do is simply switch to VT, when everything is all right. Run evtest, see the events flowing when you touch on your touchpad and then try to reproduce the bug by touchpad at the upper left corner and then again touch at different positions to verify whether the bug has been reproduced or not in VT. Try this very carefully.. -- Pointer stuck in upper-left corner while using touchpad on the upper left corner in emachines 2350 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. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp