For those who see "xhci_hcd 0000:00:14.0: xHCI host controller not responding, assume dead" in the dmesg, please subscribe to LP: #1763594.
I am building a test kernel for that bug. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1413440 Title: USB stops working after a while (xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command) Status in System76: Triaged Status in linux package in Ubuntu: Triaged Bug description: On my laptop the kernel will sometimes drop the USB hub. After this, the laptop doesn't recognise any device plugged in to the USB ports - plugging and unplugging any device I've tried into any of the USB ports produces no response, not even dmesg entries. Strangely this also applies to bluetooth - it no longer works once USB has dropped (possibly the module is hung of the bus internally). Once this has happened only a reboot fixes it; I've not managed to find any combination of module unload/reload or suspend cycles to reinitialise things correctly. Relevant snippet of dmesg: [48830.625057] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command [48838.079718] xhci_hcd 0000:00:14.0: Stopped the command ring failed, maybe the host is dead [48838.079742] xhci_hcd 0000:00:14.0: Abort command ring failed [48838.079746] xhci_hcd 0000:00:14.0: HC died; cleaning up [48838.079770] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command [48838.079806] sched: RT throttling activated [48838.079981] usb 1-1: USB disconnect, device number 16 [48838.079985] usb 1-1.2: USB disconnect, device number 18 [48838.079987] usb 1-1.2.3: USB disconnect, device number 19 [48838.080285] usb 1-1.2.4: USB disconnect, device number 20 [48838.111892] usb 1-1.4: USB disconnect, device number 17 [48838.191292] usb 1-4: USB disconnect, device number 6 [48838.267550] usb 1-10: USB disconnect, device number 8 [48838.282968] usb 2-1: device not accepting address 8, error -62 [48838.282983] usb 2-1: USB disconnect, device number 8 [48838.282986] usb 2-1.2: USB disconnect, device number 9 ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.18.0-9-generic 3.18.0-9.10 ProcVersionSignature: Ubuntu 3.18.0-9.10-generic 3.18.2 Uname: Linux 3.18.0-9-generic x86_64 ApportVersion: 2.15.1-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: chris 4255 F.... pulseaudio /dev/snd/controlC0: chris 4255 F.... pulseaudio CRDA: country AU: DFS-UNSET (2402 - 2482 @ 40), (N/A, 20), (N/A) (5170 - 5250 @ 40), (3, 23), (N/A) (5250 - 5330 @ 40), (3, 23), (0 ms), DFS (5735 - 5835 @ 40), (3, 30), (N/A) CurrentDesktop: Unity Date: Thu Jan 22 12:59:27 2015 InstallationDate: Installed on 2013-08-06 (533 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) MachineType: System76, Inc. Galago UltraPro ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.18.0-9-generic.efi.signed root=UUID=92c2fa03-f29c-4bcc-87ab-f0fe28c134f2 ro quiet splash vt.handoff=7 init=/lib/systemd/systemd break=mount RelatedPackageVersions: linux-restricted-modules-3.18.0-9-generic N/A linux-backports-modules-3.18.0-9-generic N/A linux-firmware 1.141 RfKill: 1: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2013-08-06 (533 days ago) dmi.bios.date: 07/09/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 4.6.5 dmi.board.asset.tag: Tag 12345 dmi.board.name: Galago UltraPro dmi.board.vendor: System76, Inc. dmi.board.version: galu1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: System76, Inc, dmi.chassis.version: galu1 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd07/09/2013:svnSystem76,Inc.:pnGalagoUltraPro:pvrgalu1:rvnSystem76,Inc.:rnGalagoUltraPro:rvrgalu1:cvnSystem76,Inc,:ct9:cvrgalu1: dmi.product.name: Galago UltraPro dmi.product.version: galu1 dmi.sys.vendor: System76, Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/system76/+bug/1413440/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : email@example.com Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp