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wondering if the kernel option usbhid.mousepoll=1 gives 1000hz average mouse polling for anyone? (or how to correctly measure it)
according to https://wiki.archlinux.org/index.php/Mouse_Polling_Rate mousepoll=1 should set 1000hz polling rate.
but here's my average results according to evhz:
mousepoll=1 → 500
mousepoll=2 → 500
mousepoll=4 → 250
mousepoll=8 → 125
I didn't make deeper comparisons with other than mousepoll=1, but I did get 1000 peak from 7 out of 5722 events...
(my mouse specs tell it can do 1000hz polling, and in the wiki linked ms-windows tool does show 1000hz "average" under vista)
and yes, does it matter? dunno, just wondering why its not giving 1000 average. eg. a bug?
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More likely a bug that 1000hz shows up and your mouse only supports 500hz.
With my logitech G400 if i move it constantly the output is full of 1000hz.
With my older logitech G5 that only supports 500hz shows 500hz but once I've seen 1000hz show up.
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What is the mouse? Maybe it needs software (e.g. razercfg) to tell it to switch to 1000hz mode.
Another thing to check: For usbhid.mousepoll=1 to take effect, as part of /proc/cmdline, then AFAIK you need to have:
$ zgrep USB_HID= /proc/config.gz
CONFIG_USB_HID=y
Whereas the default Arch linux has:
$ grep USB_HID= config
CONFIG_USB_HID=m
Do a check:
$ cat /sys/module/usbhid/parameters/mousepoll
1
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