Bug#1005192: Libinput properties set but have no effect

[Michael Biebl]

Am 08.02.22 um 20:26 schrieb Camaleón:
> Package: udev
> Version: 232-25
> Severity: normal
> 
> Running Debian 9, XFCE and quite simple mouse device (Microsoft Ready
> Mouse, wired, optical, 3 buttons).
> 
> I'm trying to speed up my mouse wheel scroll event (now goes up/down by
> 3 lines). As there's no option to setup the scrolling speed under XFCE
> mouse properties, I tried by the hard way:
> 
> 1. Device detection:
> 
> sm01 at stt008:~$ grep -i mouse /var/log/Xorg.0.log
> [    19.297] (==) NOUVEAU(G0): Silken mouse enabled
> [    19.300] (==) NOUVEAU(0): Silken mouse enabled
> [    22.569] (II) config/udev: Adding input device ImPS/2 Generic Wheel Mouse (/dev/input/event13)
> [    22.569] (**) ImPS/2 Generic Wheel Mouse: Applying InputClass "libinput pointer catchall"
> [    22.569] (II) Using input driver 'libinput' for 'ImPS/2 Generic Wheel Mouse'
> [    22.569] (**) ImPS/2 Generic Wheel Mouse: always reports core events
> [    22.569] (II) input device 'ImPS/2 Generic Wheel Mouse', /dev/input/event13 is tagged by udev as: Mouse
> [    22.569] (II) input device 'ImPS/2 Generic Wheel Mouse', /dev/input/event13 is a pointer caps
> [    22.600] (II) XINPUT: Adding extended input device "ImPS/2 Generic Wheel Mouse" (type: MOUSE, id 9)
> [    22.600] (**) ImPS/2 Generic Wheel Mouse: (accel) selected scheme none/0
> [    22.600] (**) ImPS/2 Generic Wheel Mouse: (accel) acceleration factor: 2.000
> [    22.600] (**) ImPS/2 Generic Wheel Mouse: (accel) acceleration threshold: 4
> [    22.600] (II) input device 'ImPS/2 Generic Wheel Mouse', /dev/input/event13 is tagged by udev as: Mouse
> [    22.600] (II) input device 'ImPS/2 Generic Wheel Mouse', /dev/input/event13 is a pointer caps
> [    22.601] (II) config/udev: Adding input device ImPS/2 Generic Wheel Mouse (/dev/input/mouse0)
> 
> 2. I created «/etc/udev/hwdb.d/71-mouse-local.hwdb» file with the
> folowing content:
> 
> # ImPS/2 Generic Wheel Mouse
> mouse:ps2:*:name:ImPS/2 Generic Wheel Mouse:
>   MOUSE_WHEEL_CLICK_ANGLE=60
> 
> 3. Updated udev's database by running:
> 
> udevadm hwdb --update
> 
> 4. Forced udev setup update with:
> 
> udevadm trigger /dev/input/event13
> 
> 5. And finally checked the propertie was already applied with:
> 
> root at stt008:/etc/udev/hwdb.d# udevadm info /sys/class/input/event13
> P: /devices/platform/i8042/serio1/input/input4/event13
> N: input/event13
> E: DEVNAME=/dev/input/event13
> E: DEVPATH=/devices/platform/i8042/serio1/input/input4/event13
> E: ID_BUS=i8042
> E: ID_INPUT=1
> E: ID_INPUT_MOUSE=1
> E: LIBINPUT_DEVICE_GROUP=11/2/5/0:isa0060/serio1
> E: MAJOR=13
> E: MINOR=77
> E: MOUSE_WHEEL_CLICK_ANGLE=60 <- here it is
> E: SUBSYSTEM=input
> E: USEC_INITIALIZED=9662442
> 
> But wheel srolling speed remains the same, I see no changes at all.
> 
> Cheers,
> 


You are setting the properties via udev (which apparently worked).
What X/Wayland/libinput does with that is out of udev's control.

Thus closing this bug report against udev as I don't see anything 
actionable in udev here.

Regards,
Michael


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