[solved] xorg config file to change mouse sensitivity does not take ef

Termy · 2023-01-17 10:38:41

Hi there,
i'm trying to make a change to the AccelSpeed for my couch-keyboard/touchpad-combo permanent.
I can't use the normal mouse sensitivity as that would also affect my desktop mouse.
Using xinput set-prop 17 305 0.3 (17 being the device and 305 being libinput Accel Speed (305): in the output of xinput list-props 17) works as expected.

Maybe someone can spot where i made an error so that the Option in the .conf file doesn't take effect?
The libinput manpage (https://www.mankier.com/4/libinput ) lists different definitions of the Option "AccelSpeed" and the Property "Accel Speed" - i was told in chat that those should be the same, but that's the only point i can see where i may be going wrong?
Current state:
I've created the file /etc/X11/xorg.conf.d/99-xinput-keyboard-touchpad.conf with content:

Section "InputClass"
  Identifier "touchpad-sens"
  MatchDriver "libinput"
  MatchIsPointer "true"
  MatchProduct "2.4G Receiver"
  Option "AccelSpeed" "0.3"
EndSection

I've tried different combinations of MatchVendor and MatchProduct:

  MatchVendor "Compx"
  MatchProduct "2.4G Receiver"

and

  MatchVendor "Compx"

And the one in the first/current block.

udevadm info --query=property --name=/dev/input/event3 gives me:

DEVPATH=/devices/pci0000:00/0000:00:08.1/0000:12:00.3/usb7/7-2/7-2:1.1/0003:25A7:FA64.0002/input/input3/event3
DEVNAME=/dev/input/event3
MAJOR=13
MINOR=67
SUBSYSTEM=input
USEC_INITIALIZED=56408566
ID_INPUT=1
ID_INPUT_MOUSE=1
ID_BUS=usb
ID_MODEL=2.4G_Receiver
ID_MODEL_ENC=2.4G\x20Receiver
ID_MODEL_ID=fa64
ID_SERIAL=Compx_2.4G_Receiver
ID_VENDOR=Compx
ID_VENDOR_ENC=Compx
ID_VENDOR_ID=25a7
ID_REVISION=0618
ID_TYPE=hid
ID_USB_MODEL=2.4G_Receiver
ID_USB_MODEL_ENC=2.4G\x20Receiver
ID_USB_MODEL_ID=fa64
ID_USB_SERIAL=Compx_2.4G_Receiver
ID_USB_VENDOR=Compx
ID_USB_VENDOR_ENC=Compx
ID_USB_VENDOR_ID=25a7
ID_USB_REVISION=0618
ID_USB_TYPE=hid
ID_USB_INTERFACES=:030101:030102:
ID_USB_INTERFACE_NUM=01
ID_USB_DRIVER=usbhid
ID_PATH=pci-0000:12:00.3-usb-0:2:1.1
ID_PATH_TAG=pci-0000_12_00_3-usb-0_2_1_1
LIBINPUT_DEVICE_GROUP=3/25a7/fa64:usb-0000:12:00.3-2
DEVLINKS=/dev/input/by-id/usb-Compx_2.4G_Receiver-if01-event-mouse /dev/input/by-path/pci-0000:12:00.3-usb-0:2:1.1-event-mouse

And just to be complete, xinput list-props 17 yields:

Device 'Compx 2.4G Receiver Mouse':
        Device Enabled (161):   1
        Coordinate Transformation Matrix (163): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
        libinput Natural Scrolling Enabled (291):       0
        libinput Natural Scrolling Enabled Default (292):       0
        libinput Scroll Methods Available (296):        0, 0, 1
        libinput Scroll Method Enabled (297):   0, 0, 0
        libinput Scroll Method Enabled Default (298):   0, 0, 0
        libinput Button Scrolling Button (299): 2
        libinput Button Scrolling Button Default (300): 2
        libinput Button Scrolling Button Lock Enabled (301):    0
        libinput Button Scrolling Button Lock Enabled Default (302):    0
        libinput Middle Emulation Enabled (303):        0
        libinput Middle Emulation Enabled Default (304):        0
        libinput Accel Speed (305):     -0.400000
        libinput Accel Speed Default (306):     0.000000
        libinput Accel Profiles Available (307):        1, 1
        libinput Accel Profile Enabled (308):   0, 1
        libinput Accel Profile Enabled Default (309):   1, 0
        libinput Left Handed Enabled (310):     0
        libinput Left Handed Enabled Default (311):     0
        libinput Send Events Modes Available (276):     1, 0
        libinput Send Events Mode Enabled (277):        0, 0
        libinput Send Events Mode Enabled Default (278):        0, 0
        Device Node (279):      "/dev/input/event3"
        Device Product ID (280):        9639, 64100
        libinput Drag Lock Buttons (293):       <no items>
        libinput Horizontal Scroll Enabled (294):       1
        libinput Scrolling Pixel Distance (312):        15
        libinput Scrolling Pixel Distance Default (313):        15
        libinput High Resolution Wheel Scroll Enabled (295):    1

Thanks in advance for any help or hints!

Last edited by Termy (2023-01-18 13:54:03)

seth · 2023-01-17 13:19:13

Post your xorg log, https://wiki.archlinux.org/title/Xorg#General and for a sanity check: can you adjust the accelspeed w/ xinput in the desired way?

Termy · 2023-01-17 13:56:11

seth wrote:

Post your xorg log, https://wiki.archlinux.org/title/Xorg#General

http://ix.io/4lv4
It seems that it is set right in there if i don't misinterpret this:

[    62.098] (**) Option "AccelSpeed" "0.3"

but if i do a xinput list-props 17 after reboot, it shows

libinput Accel Speed (305):     -0.400000

seth wrote:

and for a sanity check: can you adjust the accelspeed w/ xinput in the desired way?

yes, using xinput set-prop 17 305 0.3 with different values (0.3 is just the one i find most comfortable) alters the pointer speed as desired. From the man pages it sounded like AccelSpeed could also be Mouse Acceleration, but at least with xinput set-prop it clearly alters the pointer speed, with no acceleration present (set to flat in KDE mouse-settings and also verified by pointer movement not affected by how fast i slide over the diagonal of the touchpad)

seth · 2023-01-17 14:04:10

[    62.098] (**) Option "AccelSpeed" "0.3"
[    62.099] (**) Option "AccelerationScheme" "none"
[    62.099] (**) Compx 2.4G Receiver Mouse: (accel) selected scheme none/0
[    62.099] (**) Compx 2.4G Receiver Mouse: (accel) acceleration factor: 2.000
[    62.099] (**) Compx 2.4G Receiver Mouse: (accel) acceleration threshold: 4

        libinput Accel Profiles Available (307):        1, 1
        libinput Accel Profile Enabled (308):   0, 1
        libinput Accel Profile Enabled Default (309):   1, 0

Try https://man.archlinux.org/man/extra/xf8 … .en#Option and

set to flat in KDE mouse-settings

"startx xterm" to avoid KDE steamrolling over the config.

Termy · 2023-01-18 10:03:56

even with the added

  Option "AccelProfile" "flat"

i still get

[    38.895] (**) Compx 2.4G Receiver Mouse: (accel) selected scheme none/0

in the xorg log.

startx xterm starts and quits again immediately ('unknown xterm' or something along those lines - xterm is installed and launches though) if started from tty2 - i doubt i have to change to multi-user target, do i?

Last edited by Termy (2023-01-18 10:05:02)

seth · 2023-01-18 11:03:59

i doubt i have to disable sddm and launch it from a pure shell?

You cannot run startx from a running X11 server, and you can try "startx /usr/bin/xterm"

Termy · 2023-01-18 12:55:00

Thank you, "startx /usr/bin/xterm" worked - and in there, xinput list-props 17 really showed the desired 0.3 AccelSpeed.
So it really seems Plasma is doing something after the xorg rules are applied - or is there something else that could cause that?

Sounds similar to https://bugs.kde.org/show_bug.cgi?id=339743 though, so i probably will create a new bug/research if there are similar bugreports that are more active.

Thanks for you help!

seth · 2023-01-18 13:38:58

or is there something else that could cause that

Excluding cosmic rays and some god hating you for no reason?
Unlikely.
SDDM might be, but I doubt it (you could launch an openbox session from there and check the values)

It's probably less a "honoring" issue and more a "steamrolling" issue.

Termy · 2023-01-18 13:53:27

Given my luck with weather when i have time to go flying, i wouldn't rule out 'god hating me for no reason'
But i found some more KDE bugreports that point into that direction, so i agree that it's unlikely that that is not the culprit.
I'll add info if something comes up there.
Thanks again for the time being!

Arch Linux

#1 2023-01-17 10:38:41

[solved] xorg config file to change mouse sensitivity does not take ef

#2 2023-01-17 13:19:13

Re: [solved] xorg config file to change mouse sensitivity does not take ef

#3 2023-01-17 13:56:11

Re: [solved] xorg config file to change mouse sensitivity does not take ef

#4 2023-01-17 14:04:10

Re: [solved] xorg config file to change mouse sensitivity does not take ef

#5 2023-01-18 10:03:56

Re: [solved] xorg config file to change mouse sensitivity does not take ef

#6 2023-01-18 11:03:59

Re: [solved] xorg config file to change mouse sensitivity does not take ef

#7 2023-01-18 12:55:00

Re: [solved] xorg config file to change mouse sensitivity does not take ef

#8 2023-01-18 13:38:58

Re: [solved] xorg config file to change mouse sensitivity does not take ef

#9 2023-01-18 13:53:27

Re: [solved] xorg config file to change mouse sensitivity does not take ef

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