On Mon, 18 Aug 2014, Commander wrote: > Hi. was told to forward my bug-report here. > > The issue in short: > When connecting the mouse in USB 3.0 the mouse wont have higher > polling rate than 125Hz and will behave erratic in Witcher 2. > > More details is on the kernel Bugzilla. > https://bugzilla.kernel.org/show_bug.cgi?id=82571 The real problem is that xhci-hcd (the driver for USB-3 controllers) doesn't implement the technique used by the mousepoll option in usbhid. If you enable debugging for xhci-hcd, you'll see a warning about it in the kernel log. Something like this: Driver uses different interval (8 microframes) than xHCI (64 microframes) xhci-hcd always uses the polling rate given in the mouse's endpoint descriptor. It ignores the value requested by usbhid. Currently there is no way to change the polling rate, unless you use a USB-2 port. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
