It did not occur on previous ubuntu releases, and didn't occur during the artful dev cycle either. It seems to be on a suspend-by-suspend basis: after reproducing, another suspend cycle seems to "fix" it at least some of the time.
-- 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/1729010 Title: USB hub stops working after suspend(s?) Status in linux package in Ubuntu: Confirmed Bug description: On initial boot, my usb hub works fine, but after a (series of?) suspends, I stop being able to see devices that are plugged into it. journalctl output on plugging it in: Oct 31 07:08:36 spiny kernel: usb 1-1: new high-speed USB device number 21 using xhci_hcd Oct 31 07:08:36 spiny kernel: usb 1-1: New USB device found, idVendor=0409, idProduct=005a Oct 31 07:08:36 spiny kernel: usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 Oct 31 07:08:36 spiny kernel: hub 1-1:1.0: USB hub found Oct 31 07:08:36 spiny kernel: hub 1-1:1.0: 4 ports detected Oct 31 07:08:36 spiny kernel: [UFW BLOCK] IN=wlp3s0 OUT= MAC= SRC=fe80:0000:0000:0000:a299:9bff:fe17:9047 DST=ff02:0000:0000:0000:0000:0000:0000:0001 LEN=64 TC=0 HOPLIMIT=1 FLOWLBL=32325 PROTO=UDP SPT=8612 DPT=8612 LEN=24 Oct 31 07:08:36 spiny kernel: usb 1-1.1: new high-speed USB device number 22 using xhci_hcd Oct 31 07:08:36 spiny kernel: usb 1-1.1: New USB device found, idVendor=0b95, idProduct=772a Oct 31 07:08:36 spiny kernel: usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Oct 31 07:08:36 spiny kernel: usb 1-1.1: Product: AX88x72A Oct 31 07:08:36 spiny kernel: usb 1-1.1: Manufacturer: ASIX Elec. Corp. Oct 31 07:08:36 spiny kernel: usb 1-1.1: SerialNumber: 47EDE2 Oct 31 07:08:37 spiny kernel: asix 1-1.1:1.0 eth0: register 'asix' at usb-0000:00:14.0-1.1, ASIX AX88772 USB 2.0 Ethernet, 00:50:b6:47:ed:e2 Oct 31 07:08:37 spiny NetworkManager[11575]: <info> [1509458917.0438] manager: (eth0): new Ethernet device (/org/freedesktop/NetworkManager/Devices/7) Oct 31 07:08:37 spiny mtp-probe[13207]: checking bus 1, device 22: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1" Oct 31 07:08:37 spiny mtp-probe[13207]: bus: 1, device: 22 was not an MTP device Oct 31 07:08:37 spiny systemd-udevd[13206]: link_config: autonegotiation is unset or enabled, the speed and duplex are not writable. Oct 31 07:08:37 spiny kernel: asix 1-1.1:1.0 enx0050b647ede2: renamed from eth0 Oct 31 07:08:37 spiny pkexec[13215]: pam_unix(polkit-1:session): session opened for user root by (uid=1000) Oct 31 07:08:37 spiny pkexec[13215]: jbarnett: Executing command [USER=root] [TTY=unknown] [CWD=/home/jbarnett] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 31] Oct 31 07:08:37 spiny pkexec[13214]: gdm: Error executing command as another user: Not authorized [USER=root] [TTY=unknown] [CWD=/var/lib/gdm3] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 48] Oct 31 07:08:37 spiny org.gnome.SettingsDaemon.Power.desktop[2273]: Error executing command as another user: Not authorized Oct 31 07:08:37 spiny org.gnome.SettingsDaemon.Power.desktop[2273]: This incident has been reported. Oct 31 07:08:37 spiny systemd-networkd[1119]: eth0: Renamed to enx0050b647ede2 Oct 31 07:08:37 spiny NetworkManager[11575]: <info> [1509458917.1066] device (eth0): interface index 10 renamed iface from 'eth0' to 'enx0050b647ede2' Oct 31 07:08:37 spiny NetworkManager[11575]: <info> [1509458917.1214] devices added (path: /sys/devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.0/net/enx0050b647ede2, iface: enx0050b647ede2) Oct 31 07:08:37 spiny NetworkManager[11575]: <info> [1509458917.1214] device added (path: /sys/devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.0/net/enx0050b647ede2, iface: enx0050b647ede2): no ifupdown configuration found. Oct 31 07:08:37 spiny NetworkManager[11575]: <info> [1509458917.1217] device (enx0050b647ede2): state change: unmanaged -> unavailable (reason 'managed', internal state 'external') Oct 31 07:08:37 spiny kernel: IPv6: ADDRCONF(NETDEV_UP): enx0050b647ede2: link is not ready Oct 31 07:08:37 spiny kernel: IPv6: ADDRCONF(NETDEV_UP): enx0050b647ede2: link is not ready Oct 31 07:08:37 spiny NetworkManager[11575]: <info> [1509458917.1274] keyfile: add connection in-memory (9365f42f-9dd9-3bdc-bbad-e7062efcaf7c,"Wired connection 4") Oct 31 07:08:37 spiny NetworkManager[11575]: <info> [1509458917.1284] settings: (enx0050b647ede2): created default wired connection 'Wired connection 4' Oct 31 07:08:37 spiny systemd[1]: Starting systemd-resolved-update-resolvconf.service... Oct 31 07:08:37 spiny systemd[1]: Started systemd-resolved-update-resolvconf.service. Oct 31 07:08:37 spiny kernel: usb 1-1.2: new full-speed USB device number 23 using xhci_hcd Oct 31 07:08:37 spiny kernel: usb 1-1.2: New USB device found, idVendor=0d8c, idProduct=0105 Oct 31 07:08:37 spiny kernel: usb 1-1.2: New USB device strings: Mfr=3, Product=1, SerialNumber=0 Oct 31 07:08:37 spiny kernel: usb 1-1.2: Product: USB Multimedia Audio Device Oct 31 07:08:37 spiny kernel: usb 1-1.2: Manufacturer: C-Media Electronics Inc. Oct 31 07:08:37 spiny kernel: xhci_hcd 0000:00:14.0: WARN: Success on ctrl setup TRB without IOC set? Oct 31 07:08:37 spiny kernel: xhci_hcd 0000:00:14.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 0 comp_code 6 Oct 31 07:08:37 spiny kernel: xhci_hcd 0000:00:14.0: Looking for event-dma 000000046838f870 trb-start 000000046838f880 trb-end 000000046838f8a0 seg-start 000000046838f000 seg-end 000000046838fff0 Oct 31 07:08:39 spiny ModemManager[1303]: <info> Couldn't check support for device at '/sys/devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1': not supported by any plugin ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-16-generic 4.13.0-16.19 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: jbarnett 2762 F.... pulseaudio /dev/snd/controlC0: jbarnett 2762 F.... pulseaudio CurrentDesktop: GNOME Date: Tue Oct 31 07:09:02 2017 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=dd225ec0-47f4-49d8-a51c-a2547f8eb945 InstallationDate: Installed on 2015-08-21 (801 days ago) InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Alpha amd64 (20150819) MachineType: Apple Inc. MacBookPro11,4 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-16-generic.efi.signed root=/dev/mapper/ubuntu--gnome--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.13.0-16-generic N/A linux-backports-modules-4.13.0-16-generic N/A linux-firmware 1.169 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/05/2015 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBP114.88Z.0172.B04.1506051511 dmi.board.name: Mac-06F11FD93F0323C5 dmi.board.vendor: Apple Inc. dmi.board.version: MacBookPro11,4 dmi.chassis.type: 9 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-06F11FD93F0323C5 dmi.modalias: dmi:bvnAppleInc.:bvrMBP114.88Z.0172.B04.1506051511:bd06/05/2015:svnAppleInc.:pnMacBookPro11,4:pvr1.0:rvnAppleInc.:rnMac-06F11FD93F0323C5:rvrMacBookPro11,4:cvnAppleInc.:ct9:cvrMac-06F11FD93F0323C5: dmi.product.family: MacBook Pro dmi.product.name: MacBookPro11,4 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. 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