Comment 20 for bug 1291969

Dell XPS 13 9333. Tested linux-image-4.1.0-040100rc2-generic. The same issue. Interesting in syslog:

May 7 16:18:29 adept-XPS13 kernel: [ 177.255581] hub 2-1:1.0: hub_port_status failed (err = -71)
May 7 16:18:29 adept-XPS13 kernel: [ 180.034509] dell_wmi: Unknown key e00e pressed
May 7 16:18:29 adept-XPS13 kernel: [ 182.256180] hub 2-1:1.0: hub_port_status failed (err = -110)
May 7 16:18:29 adept-XPS13 kernel: [ 198.285350] xhci_hcd 0000:00:14.0: xHCI host not responding to stop endpoint command.
May 7 16:18:29 adept-XPS13 kernel: [ 198.285352] xhci_hcd 0000:00:14.0: Assuming host is dying, halting host.
May 7 16:18:29 adept-XPS13 kernel: [ 198.285377] xhci_hcd 0000:00:14.0: HC died; cleaning up
May 7 16:18:29 adept-XPS13 kernel: [ 198.285403] dpm_run_callback(): usb_dev_resume+0x0/0x20 returns -22
May 7 16:18:29 adept-XPS13 kernel: [ 198.285422] PM: Device 2-1.3 failed to resume async: error -22
May 7 16:18:29 adept-XPS13 kernel: [ 198.285484] PM: resume of devices complete after 22081.908 msecs
May 7 16:18:29 adept-XPS13 kernel: [ 198.285784] PM: Finishing wakeup.
May 7 16:18:29 adept-XPS13 kernel: [ 198.285786] Restarting tasks ...
May 7 16:18:29 adept-XPS13 kernel: [ 198.285827] usb 2-1: USB disconnect, device number 2
May 7 16:18:29 adept-XPS13 kernel: [ 198.285845] usb 2-1.3: USB disconnect, device number 3
May 7 16:18:29 adept-XPS13 kernel: [ 198.286237] pci_bus 0000:01: Allocating resources
May 7 16:18:29 adept-XPS13 kernel: [ 198.286256] pci_bus 0000:02: Allocating resources
May 7 16:18:29 adept-XPS13 kernel: [ 198.286281] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment
May 7 16:18:29 adept-XPS13 kernel: [ 198.286648] pci_bus 0000:01: Allocating resources
May 7 16:18:29 adept-XPS13 kernel: [ 198.286666] pci_bus 0000:02: Allocating resources
May 7 16:18:29 adept-XPS13 kernel: [ 198.286691] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment