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List:       freedesktop-xorg
Subject:    Strange bug with mouse wheel scrolling
From:       Greg Stark <gsstark () mit ! edu>
Date:       2006-03-31 5:00:55
Message-ID: 87acb7mcmw.fsf () stark ! xeocode ! com
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I have a bug here but I'm not sure if it's an X bug or a Linux kernel bug or
perhaps my mouse having some weird hardware failure, though it's never done it
before. 

Whenever I scroll (vertically) by quickly spinning the mouse wheel it inserts
the occasional horizontal scroll. Checking with xev it does in fact send the
occasional "button 7" event:


ButtonPress event, serial 21, synthetic NO, window 0x1e00001,
    root 0x3c, subw 0x0, time 20499007, (146,45), root:(437,336),
    state 0x0, button 5, same_screen YES

ButtonRelease event, serial 21, synthetic NO, window 0x1e00001,
    root 0x3c, subw 0x0, time 20499007, (146,45), root:(437,336),
    state 0x1000, button 5, same_screen YES

ButtonPress event, serial 21, synthetic NO, window 0x1e00001,
    root 0x3c, subw 0x0, time 20499018, (146,45), root:(437,336),
    state 0x0, button 5, same_screen YES

ButtonRelease event, serial 21, synthetic NO, window 0x1e00001,
    root 0x3c, subw 0x0, time 20499018, (146,45), root:(437,336),
    state 0x1000, button 5, same_screen YES

ButtonPress event, serial 21, synthetic NO, window 0x1e00001,
    root 0x3c, subw 0x0, time 20499028, (146,45), root:(437,336),
    state 0x0, button 7, same_screen YES

ButtonRelease event, serial 21, synthetic NO, window 0x1e00001,
    root 0x3c, subw 0x0, time 20499028, (146,45), root:(437,336),
    state 0x0, button 7, same_screen YES



-- 
greg


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