Mouse accel despite flat profile
Summary
I'm noticing mouse acceleration that is seemingly caused by dpi, and polling rate. My mouse accel is being changed based off of how fast I move my mouse. If I move it slowly it'll increase, and if I move it fast it'll decrease. I'm using a rvm with it's dpi set to 8500, and 1000hz polling rate. If I lower it the acceleration becomes less apparent all the way down to 0 dpi. The dpi seems to be adding some mouse acceleration. I was able to test this by lowering my dpi down to 800, and noticing still some mouse accel that wasn't a flat curve, but a lot less. With a lot less testing it seems like polling rate also effects the mouse accel.
Also isn't dpi past 1k to all feel the same? because I notice a lot different pointer accel with dpi between 1k, and 8500 being the highest my mouse supports.
Steps to reproduce
I'm testing this in warthunder. I've been compensating for the dpi's effect on sensitivity, and changing it using this site. With 8500 dpi and moving my mouse across my 50cm mousepad with an in game sens that's 45cm I can tell that the 360/cm dynamically changing. Despite that the only variable is the speed in which I'm moving the mouse
Required information
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libinput version: 1:25
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hardware information: which hardware? Sorry, but I don't know what you want me to put here.
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libinput record
output: do not paste, mouse.yaml -
libinput debug-events --verbose
output: libinput-debu -
mouse dpi mouse-dpi