https://bugs.kde.org/show_bug.cgi?id=505853

--- Comment #7 from TraceyC <[email protected]> ---
(In reply to gudvinr+kde from comment #6)
> Do you have hi-res scrolling though? If so, try run `libinput record
> /dev/input/eventwhatever` to see if items switch every REL_WHEEL_HI_RES or
> every REL_WHEEL?

Thanks for the suggestion. Running that, apparently this mouse does have hi-res
scrolling. Some sample output from my system:

 - evdev:
    - [ 11, 692006,   2,   8,      -1] # EV_REL / REL_WHEEL                -1
    - [ 11, 692006,   2,  11,    -120] # EV_REL / REL_WHEEL_HI_RES       -120
    - [ 11, 692006,   0,   0,       0] # ------------ SYN_REPORT (0) ----------
+5ms
  - evdev:
    - [ 11, 694983,   2,   8,      -1] # EV_REL / REL_WHEEL                -1
    - [ 11, 694983,   2,  11,    -120] # EV_REL / REL_WHEEL_HI_RES       -120
    - [ 11, 694983,   0,   0,       0] # ------------ SYN_REPORT (0) ----------
+2ms
  - evdev:
    - [ 11, 698978,   2,   8,      -1] # EV_REL / REL_WHEEL                -1
    - [ 11, 698978,   2,  11,    -120] # EV_REL / REL_WHEEL_HI_RES       -120
    - [ 11, 698978,   0,   0,       0] # ------------ SYN_REPORT (0) ----------
+4ms
  - evdev:
    - [ 11, 703015,   2,   8,      -1] # EV_REL / REL_WHEEL                -1
    - [ 11, 703015,   2,  11,    -120] # EV_REL / REL_WHEEL_HI_RES       -120
    - [ 11, 703015,   0,   0,       0] # ------------ SYN_REPORT (0) ----------
+5ms

I'm seeing REL_WHEEL_HI_RES events with every REL_WHEEL event. The mouse
doesn't have "smooth scrolling" like some MS mice do.

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