On Sun, Mar 03, 2019 at 03:15:27PM +0100, Farelka kek wrote: > usbcore.autosuspend higher than -1, causes 1 cpu core to never step > down from kernel mode. Some hardware does not aupport autosuspend, so leaving it at -1 is good. > It happens on a core i5-7200U laptop, an acer f5-573g-50ec > Disabling usb autosuspend causes the cpu not to idle at, minimum of > 25% cpu usage. Is this a regression from earlier kernel versions? If so, any chance you can run 'git bisect' to find the offending commit? thanks, greg k-h
