> 1. Can you post your xorg.conf and /var/log/Xorg.0.log? Right now I don't have an xorg.conf in /etc/X11.
> 2. See if it has `Option "EmulateWheel"' and/or `Option > "EmulateWheelButton"' > is set if the input driver is "mouse"? I tried those options and I could not get this to change the behavior. When I created an xorg.conf, I used "wsmouse". > 3. Run xev -event mouse > /tmp/xev.log, then a) first move the mouse only, > then > b) use the scroll-wheel only? Post the xev.log file, too. Oh nice, Iain also suggested xev. I can now confirm that simply moving the mouse causes multiple events. I noticed that the scroll action on the mouse does not produce any events. Here is the xev log for moving the mouse (made sure I moved X and Y) and trying to scroll (which did not produce events): Outer window is 0xa00001, inner window is 0xa00002 EnterNotify event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141270, (175,138), root:(333,315), mode NotifyNormal, detail NotifyAncestor, same_screen YES, focus YES, state 0 MotionNotify event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141270, (175,138), root:(333,315), state 0x0, is_hint 0, same_screen YES ButtonPress event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141270, (175,138), root:(333,315), state 0x0, button 5, same_screen YES ButtonRelease event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141270, (175,138), root:(333,315), state 0x1000, button 5, same_screen YES MotionNotify event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141281, (173,138), root:(331,315), state 0x0, is_hint 0, same_screen YES ButtonPress event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141281, (173,138), root:(331,315), state 0x0, button 5, same_screen YES ButtonRelease event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141281, (173,138), root:(331,315), state 0x1000, button 5, same_screen YES MotionNotify event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141293, (171,138), root:(329,315), state 0x0, is_hint 0, same_screen YES ButtonPress event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141293, (171,138), root:(329,315), state 0x0, button 5, same_screen YES ButtonRelease event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141293, (171,138), root:(329,315), state 0x1000, button 5, same_screen YES MotionNotify event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141304, (169,138), root:(327,315), state 0x0, is_hint 0, same_screen YES ButtonPress event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141304, (169,138), root:(327,315), state 0x0, button 5, same_screen YES ButtonRelease event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141304, (169,138), root:(327,315), state 0x1000, button 5, same_screen YES MotionNotify event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141315, (168,138), root:(326,315), state 0x0, is_hint 0, same_screen YES ButtonPress event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141315, (168,138), root:(326,315), state 0x0, button 5, same_screen YES ButtonRelease event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141315, (168,138), root:(326,315), state 0x1000, button 5, same_screen YES MotionNotify event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141383, (166,138), root:(324,315), state 0x0, is_hint 0, same_screen YES ButtonPress event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141383, (166,138), root:(324,315), state 0x0, button 5, same_screen YES ButtonRelease event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141383, (166,138), root:(324,315), state 0x1000, button 5, same_screen YES MotionNotify event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141394, (164,138), root:(322,315), state 0x0, is_hint 0, same_screen YES ButtonPress event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141394, (164,138), root:(322,315), state 0x0, button 5, same_screen YES ButtonRelease event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141394, (164,138), root:(322,315), state 0x1000, button 5, same_screen YES MotionNotify event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141405, (162,138), root:(320,315), state 0x0, is_hint 0, same_screen YES ButtonPress event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141405, (162,138), root:(320,315), state 0x0, button 5, same_screen YES ButtonRelease event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141405, (162,138), root:(320,315), state 0x1000, button 5, same_screen YES MotionNotify event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141416, (161,138), root:(319,315), state 0x0, is_hint 0, same_screen YES MotionNotify event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141416, (161,139), root:(319,316), state 0x0, is_hint 0, same_screen YES ButtonPress event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141416, (161,139), root:(319,316), state 0x0, button 5, same_screen YES ButtonRelease event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141416, (161,139), root:(319,316), state 0x1000, button 5, same_screen YES MotionNotify event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141428, (160,139), root:(318,316), state 0x0, is_hint 0, same_screen YES ButtonPress event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141428, (160,139), root:(318,316), state 0x0, button 5, same_screen YES ButtonRelease event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11141428, (160,139), root:(318,316), state 0x1000, button 5, same_screen YES LeaveNotify event, serial 25, synthetic NO, window 0xa00001, root 0x3a6, subw 0x0, time 11145099, (160,139), root:(318,316), mode NotifyNormal, detail NotifyNonlinear, same_screen YES, focus YES, state 64