[SOLVED] USB is not working after suspend

[Elv13]

Hello,

After I resume from suspend, no USB devices are working. Plugging and unplugging them from the port produce no dmesg or lsusb entries. I tried

* recompiling the kernel with the usb host subsystem as a module (and rmmod+modprobe them)
* some iommu kernel command line tricks
* disabling ACPI and APM
* playing in UEFI settings

Those did not work. I know there is real kernel bugs regarding this, but I still hope I missed something. Any idea?

Lenovo W540, kernel 3.10 to 4.3, SSD, pm-suspend

Edit:

Apparently I did not try hard enough. Adding some sleeps in the pm-util script solved the problem

Code: Select all

#!/bin/bash
#/etc/pm/sleep.d/suspend                                                              

#!/bin/bash

case "$1" in
    suspend|suspend_hybrid|hibernate)
        modprobe -r ehci_pci ehci_hcd
        sleep 0.5
        modprobe -r xhci_hcd
        sleep 0.5
        modprobe -r xhci_pci
        ;;
    resume|thaw)
        # modprobe nvidiabl
        modprobe xhci_hcd ehci_pci ehci_hcd
        sleep 1.5
        modprobe xhci_pci
        echo bob > /tmp/bob
        ;;
esac

[Elv13]

BUMP