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[Bug 636311] Re: Keyboard special keys interfere with mouse

 

For those people who find that pressing one of the special keys causes
the mouse to jump to (0,0), could you please attach the log generated by
input-events when that occurs?  You'd want to run “sudo input-events $N”
(replacing $N with the input device number) in a terminal, then press a
special key to trigger the behaviour, then copy the output here.

You can work out what your input device number is from your /var/log/Xorg.0.log.  For example, this person has their special keys on input device 3 (/dev/input/event3):
                                                                                                                                                                vvvvvvvvvvvvvvvv
[ 86337.025] (II) config/udev: Adding input device Microsoft Microsoft® Digital Media Keyboard 3000 (/dev/input/event3)
[ 86337.025] (**) Microsoft Microsoft® Digital Media Keyboard 3000: Applying InputClass "evdev keyboard catchall"
[ 86337.025] (**) Microsoft Microsoft® Digital Media Keyboard 3000: always reports core events
[ 86337.025] (**) Microsoft Microsoft® Digital Media Keyboard 3000: Device: "/dev/input/event3"
[ 86337.060] (II) Microsoft Microsoft® Digital Media Keyboard 3000: Found 1 mouse buttons
[ 86337.060] (II) Microsoft Microsoft® Digital Media Keyboard 3000: Found scroll wheel(s)
[ 86337.060] (II) Microsoft Microsoft® Digital Media Keyboard 3000: Found relative axes
[ 86337.060] (II) Microsoft Microsoft® Digital Media Keyboard 3000: Found absolute axes
[ 86337.060] (II) Microsoft Microsoft® Digital Media Keyboard 3000: Found x and y absolute axes
[ 86337.060] (II) Microsoft Microsoft® Digital Media Keyboard 3000: Found keys
[ 86337.060] (II) Microsoft Microsoft® Digital Media Keyboard 3000: Configuring as mouse
[ 86337.060] (II) Microsoft Microsoft® Digital Media Keyboard 3000: Configuring as keyboard
[ 86337.060] (**) Microsoft Microsoft® Digital Media Keyboard 3000: YAxisMapping: buttons 4 and 5
[ 86337.060] (**) Microsoft Microsoft® Digital Media Keyboard 3000: EmulateWheelButton: 4, 

Your special-key device will be the one with all those incorrect
properties - 1 mouse button, scroll wheels, relative & absolute axes.

-- 
Keyboard special keys interfere with mouse
https://bugs.launchpad.net/bugs/636311
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References