> Did this issue start happening after an update/upgrade? Was there a > prior kernel version where you were not having this particular problem?
As said in the description, it started happening after upgrading from Kubuntu 18.04 to 18.10. 18.04 has kernel 4.15. > Would it be possible for you to test the latest upstream kernel? The problem reproduces with kernel 4.19 rc8. The is the dmesg lines that start appearing when the problem happens: [ 136.161611] xhci_hcd 0000:05:00.0: WARN Cannot submit Set TR Deq Ptr [ 136.161615] xhci_hcd 0000:05:00.0: A Set TR Deq Ptr command is pending. [ 136.293090] usb 6-1: reset SuperSpeed Gen 1 USB device number 2 using xhci_hcd [ 166.865743] xhci_hcd 0000:05:00.0: WARN Cannot submit Set TR Deq Ptr [ 166.865747] xhci_hcd 0000:05:00.0: A Set TR Deq Ptr command is pending. [ 167.001317] usb 6-1: reset SuperSpeed Gen 1 USB device number 2 using xhci_hcd ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed ** Tags added: kernel-bug-exists-upstream -- 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/1798979 Title: Hama "Slim" USB 3.0 Multi Card Reader doesn't work Status in linux package in Ubuntu: Confirmed Bug description: I have problems with Hama "Slim" USB 3.0 Multi Card Reader (model number 00114837, https://www.hama.com/00114837/hama-slim-usb-30-multi- card-reader-black) attached to a USB 3.0. After attaching the reader (or booting the system) the device works for some time, about a minute or so. It's blue power led is on. Then CPU load goes up to 30-50% and the power led on the reader starts turning off and on with a several seconds interval. It looks like the device is being repeatedly reinitialized. dmesg shows these lines while this is happening: [ 147.251654] xhci_hcd 0000:05:00.0: WARN Set TR Deq Ptr cmd failed due to incorrect slot or ep state. [ 147.447251] xhci_hcd 0000:05:00.0: WARN Event TRB for slot 1 ep 4 with no TDs queued? [ 220.546280] xhci_hcd 0000:05:00.0: WARN Cannot submit Set TR Deq Ptr [ 220.546283] xhci_hcd 0000:05:00.0: A Set TR Deq Ptr command is pending. [ 220.685727] usb 6-2: reset SuperSpeed Gen 1 USB device number 2 using xhci_hcd [ 251.266583] xhci_hcd 0000:05:00.0: WARN Cannot submit Set TR Deq Ptr [ 251.266584] xhci_hcd 0000:05:00.0: A Set TR Deq Ptr command is pending. [ 251.398028] usb 6-2: reset SuperSpeed Gen 1 USB device number 2 using xhci_hcd [ 284.045003] xhci_hcd 0000:05:00.0: WARN Cannot submit Set TR Deq Ptr [ 284.045006] xhci_hcd 0000:05:00.0: A Set TR Deq Ptr command is pending. [ 284.180500] usb 6-2: reset SuperSpeed Gen 1 USB device number 2 using xhci_hcd [ 314.761869] xhci_hcd 0000:05:00.0: WARN Cannot submit Set TR Deq Ptr [ 314.761873] xhci_hcd 0000:05:00.0: A Set TR Deq Ptr command is pending. [ 314.893338] usb 6-2: reset SuperSpeed Gen 1 USB device number 2 using xhci_hcd and so on. No cards are inserted in the device and no user activity on the system, the problem starts happening "on its own". I tried plugging the device in a different USB 3.0 slot, it doesn't help. The device worked on the same system in Kubuntu 18.04, linux kernel 4.15. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: linux-image-generic 4.18.0.10.11 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: lastique 3112 F.... pulseaudio /dev/snd/controlC1: lastique 3112 F.... pulseaudio CurrentDesktop: KDE Date: Sat Oct 20 19:31:35 2018 InstallationDate: Installed on 2015-05-01 (1267 days ago) InstallationMedia: Kubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: System manufacturer System Product Name ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-10-generic root=UUID=a03f1835-52f9-4409-9da7-fe45770637ae ro quiet splash nomdmonddf nomdmonisw vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-4.18.0-10-generic N/A linux-backports-modules-4.18.0-10-generic N/A linux-firmware 1.175 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to cosmic on 2018-10-20 (0 days ago) dmi.bios.date: 11/09/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3603 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: P8Z68-V PRO dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3603:bd11/09/2012:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8Z68-VPRO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.family: To be filled by O.E.M. dmi.product.name: System Product Name dmi.product.sku: SKU dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1798979/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp