dexter1, as per http://www.dell.com/support/home/us/en/19/product- support/product/latitude-e7250-ultrabook/drivers an update to your computer's buggy and outdated BIOS is available (A08). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it address the issue?
If it doesn't, could you please both specify what happened, and provide the output of the following terminal command: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date 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. Also, you don't have to create a new bug report. Once the BIOS is updated, if the problem is still reproducible, and the information above is provided, then please mark this report Status Confirmed. Otherwise, please mark this as Invalid. Thank you for your understanding. ** 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/1514821 Title: SD card reader on Dell E7250 doesn't work in Ubuntu 15.10 Status in linux package in Ubuntu: Incomplete Bug description: I booted the machine with the SD card removed. I logged into Unity, inserted the SD card and saw the error messages popping up in dmesg: sdhci: Timeout waiting for Buffer Read Ready interrupt during tuning procedure, falling back to fixed sampling clock mmc0: tuning execution failed mmc0: error -5 whilst initialising SD card I was expecting to see the SD card mounted in the Unity actionbar, like in 15.04. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-18-generic 4.2.0-18.22 ProcVersionSignature: Ubuntu 4.2.0-18.22-generic 4.2.3 Uname: Linux 4.2.0-18-generic x86_64 ApportVersion: 2.19.1-0ubuntu4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: <username> 1864 F.... pulseaudio /dev/snd/controlC0: <username> 1864 F.... pulseaudio Date: Tue Nov 10 13:56:18 2015 HibernationDevice: RESUME=UUID=a507736b-2856-48bd-ae57-a3a1a678c150 InstallationDate: Installed on 2015-06-19 (144 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: Dell Inc. Latitude E7250 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-18-generic root=UUID=fe9cd698-4d8c-4ea1-9cce-af132d859b83 ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.2.0-18-generic N/A linux-backports-modules-4.2.0-18-generic N/A linux-firmware 1.149.1 SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: Upgraded to wily on 2015-11-02 (8 days ago) dmi.bios.date: 09/01/2015 dmi.bios.vendor: Dell Inc. dmi.bios.version: A07 dmi.board.asset.tag: TUD254222 dmi.board.name: 0TVD2T dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.asset.tag: TUD254222 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA07:bd09/01/2015:svnDellInc.:pnLatitudeE7250:pvr:rvnDellInc.:rn0TVD2T:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E7250 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1514821/+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