Hi. On Sat, Nov 03, 2018 at 07:12:55PM +0100, Rainer Dorsch wrote: > Hi, > > after resume from suspend I have no mouse and keyboard anymore in a Debian > stable system. > > The syslog shows: > > Nov 3 18:23:24 blackbox kernel: [ 318.907431] dpm_run_callback(): > usb_dev_resume+0x0/0x20 [usbcore] returns -22
Note [usbcore] here. > Nov 3 18:23:24 blackbox kernel: [ 318.908237] usb 6-1: USB disconnect, > device number 2 > Nov 3 18:23:24 blackbox kernel: [ 318.927894] usb 6-2: USB disconnect, > device number 3 Given these, > (not listed anymore after resume by lsusb). this is expected. > Even unplugging and replugging the two devices physically does not bring them > back. Only reboot helps so far. Your USB hub disconnected USB devices and presumably has powered itself down. > So far, I also did not find any modules which I could unload and reload to > make the mouse and keyboard working again: I'd try usbcore and usbhid for starters. Or resetting problematic USB bus as shown at [1]. Reco [1] http://billauer.co.il/blog/2013/02/usb-reset-ehci-uhci-linux/
