Dawid Wróbel, thank you for reporting this and helping make Ubuntu better.
As per http://www.dell.com/support/home/us/en/19/product- support/product/latitude-e6230/drivers/advanced an update to your computer's buggy and outdated BIOS is available (A15). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it change anything? For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette . Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. As well, you don't have to create a new bug report. Once the BIOS is updated, if the problem is still reproducible: 1) Please provide the output of the following terminal command (not perform an apport-collect): sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date 2) Please make a comment specifically advising on if there was an improvement or not. 3) Please mark this report Status Confirmed. If it's not reproducible, please mark this as Invalid. Thank you for your understanding. ** Tags added: bios-outdated-a15 ** Changed in: linux (Ubuntu) Importance: Undecided => Low ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1541997 Title: dmesg flooded with xhci_hcd warnings "WARN Event TRB for slot 1 ep 8 with no TDs queued?" Status in linux package in Ubuntu: Incomplete Bug description: I am running vmware, hosting a Windows 10 guest, relaying USB smartcard reader and see a flood of following warnings in dmesg: "xhci_hcd 0000:00:14.0: WARN Event TRB for slot 1 ep 8 with no TDs queued?" I only presume they are related to vmware/usb smartcard reader, I can't be sure. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-27-generic 4.2.0-27.32 ProcVersionSignature: Ubuntu 4.2.0-27.32-generic 4.2.8-ckt1 Uname: Linux 4.2.0-27-generic x86_64 ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC1D0p: cromo 2748 F...m pulseaudio /dev/snd/controlC1: cromo 2748 F.... pulseaudio /dev/snd/controlC0: cromo 2748 F.... pulseaudio /dev/snd/timer: cromo 2748 f.... pulseaudio CurrentDesktop: GNOME Date: Thu Feb 4 14:19:30 2016 HibernationDevice: RESUME=UUID=3cd6beac-9b2b-4af8-9004-fdec2b01f2df InstallationDate: Installed on 2013-04-24 (1016 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130423.1) MachineType: Dell Inc. Latitude E6230 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-27-generic root=UUID=50ed3eed-05f6-4dce-b5d6-86a6519d89c1 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.2.0-27-generic N/A linux-backports-modules-4.2.0-27-generic N/A linux-firmware 1.149.3 SourcePackage: linux UpgradeStatus: Upgraded to wily on 2015-10-28 (98 days ago) dmi.bios.date: 05/20/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A10 dmi.board.name: 0GWYCT dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA10:bd05/20/2013:svnDellInc.:pnLatitudeE6230:pvr01:rvnDellInc.:rn0GWYCT:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E6230 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1541997/+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