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My mouse's wheel no longer works as a scroll wheel in Kde apps, yet it still works as previously in other apps like Firefox, Libreoffice, etc.
I haven't been able to find a related setting in the KDE setting app---none of the (very few) mouse options refer to the mouse wheel.
I have checked that the wheel is actually working with both xev and libinput and indeed the events are generated:
xev shows:
ButtonPress event, serial 40, synthetic NO, window 0x2800001,
root 0x2fb, subw 0x0, time 196854654, (113,119), root:(113,151),
state 0x0, button 5, same_screen YES
ButtonPress event, serial 40, synthetic NO, window 0x2800001,
root 0x2fb, subw 0x0, time 196854158, (113,119), root:(113,151),
state 0x0, button 4, same_screen YES
and libinput:
stefano@gorgias $ libinput debug-events
-event1 DEVICE_ADDED Power Button seat0 default group1 cap:k
-event0 DEVICE_ADDED Power Button seat0 default group2 cap:k
-event12 DEVICE_ADDED HDA NVidia HDMI/DP,pcm=3 seat0 default group3 cap:
-event13 DEVICE_ADDED HDA NVidia HDMI/DP,pcm=7 seat0 default group3 cap:
-event14 DEVICE_ADDED HDA NVidia HDMI/DP,pcm=8 seat0 default group3 cap:
-event15 DEVICE_ADDED HDA NVidia HDMI/DP,pcm=9 seat0 default group3 cap:
-event9 DEVICE_ADDED HDA Intel PCH Front Mic seat0 default group3 cap:
-event10 DEVICE_ADDED HDA Intel PCH Line Out seat0 default group3 cap:
-event11 DEVICE_ADDED HDA Intel PCH Front Headphone seat0 default group3 cap:
-event8 DEVICE_ADDED HDA Intel PCH Rear Mic seat0 default group3 cap:
-event2 DEVICE_ADDED PixArt DynexWired USB Optical Mouse seat0 default group4 cap:p left scroll-nat scroll-button
-event3 DEVICE_ADDED BTC USB Multimedia Keyboard seat0 default group5 cap:k
-event4 DEVICE_ADDED BTC USB Multimedia Keyboard System Control seat0 default group5 cap:k
-event5 DEVICE_ADDED BTC USB Multimedia Keyboard Consumer Control seat0 default group5 cap:k
[...]
event2 POINTER_AXIS +1.848s vert -15.00/-1* horiz 0.00/0 (wheel)
event2 POINTER_AXIS +2.816s vert 15.00/1* horiz 0.00/0 (wheel)
here is my xinput listing:
stefano@gorgias $ xinput list-props 8
Device 'PixArt DynexWired USB Optical Mouse':
Device Enabled (154): 1
Coordinate Transformation Matrix (156): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
libinput Natural Scrolling Enabled (288): 0
libinput Natural Scrolling Enabled Default (289): 0
libinput Scroll Methods Available (290): 0, 0, 1
libinput Scroll Method Enabled (291): 0, 0, 0
libinput Scroll Method Enabled Default (292): 0, 0, 0
libinput Button Scrolling Button (293): 2
libinput Button Scrolling Button Default (294): 2
libinput Middle Emulation Enabled (295): 0
libinput Middle Emulation Enabled Default (296): 0
libinput Accel Speed (297): 0.000000
libinput Accel Speed Default (298): 0.000000
libinput Accel Profiles Available (299): 1, 1
libinput Accel Profile Enabled (300): 1, 0
libinput Accel Profile Enabled Default (301): 1, 0
libinput Left Handed Enabled (302): 0
libinput Left Handed Enabled Default (303): 0
libinput Send Events Modes Available (273): 1, 0
libinput Send Events Mode Enabled (274): 0, 0
libinput Send Events Mode Enabled Default (275): 0, 0
Device Node (276): "/dev/input/event2"
Device Product ID (277): 6655, 568
libinput Drag Lock Buttons (304): <no items>
libinput Horizontal Scroll Enabled (305): 1
and my current linux version:
stefano@gorgias $ uname -r
5.5.13-arch1-1
Suggestions appreciated, as I have no idea about where to look next.
Last edited by stefano (2020-04-02 14:56:26)
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Problem has disappeared, finally, after yesterday's (4/1/2020) update of Xorg (v. 1.20.8-1) and plasma (v. 5.18.4.1-1) and related packages.
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