mousemove positions have the half resolution

[SuperTux88]

When I execute ydotool mousemove --absolute -- 10 10, it moves the mouse to 20/20 instead of to 10/10, so it looks like the resolution for the mouse is exactly half of my real resolution. It works, if I just call the commands with all values I used for xdotool divided by 2, but I didn't expect I need to do this.

I'm using sway and I have multiple monitors, but I don't have any scaling configured, so a scaling factor shouldn't be the reason for this behavior. 🤷‍♂️

[ghost]

For me I fixed it by setting "Acceleration Profile" for "ydotool virtual device" from "Adaptive" to "Flat".

[SuperTux88]

Thanks, that worked, but I still think that's unexpected behavior. Can "flat" be made the default for ydotool somehow? 🤔

[johngebbie]

For anyone else on X11, try: xinput --set-prop 'pointer:ydotoold virtual device' 'libinput Accel Profile Enabled' 0, 1, which needs run each reboot.
I couldn't get a xorg.conf working.

[ReimuNotMoe]

Implemented in de4d908

[SuperTux88]

On sway/wayland this problem still exists (tested with 1.0.4) and I still need to manually set the accel_profile to flat in my sway config:

input "9011:26214:ydotoold_virtual_device" {
    accel_profile flat
}

You can also do this with a command as one-time config: swaymsg input "9011:26214:ydotoold_virtual_device" accel_profile flat, but then it gets lost again every time you reload your sway config, so just running this command once when launching ydotoold isn't a solution, as then it doesn't get executed again when you reload sway.

So it would still be cool if flat could just be the default, without needing to set it anywhere (no commands and no config), but I don't know if that's possible. If it isn't possible, it should at least be documented somewhere to have a hint for people to know what to do when it doesn't work as expected.