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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This change was made by a bot.

** Changed in: linux (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1538444

Title:
  Cannot read Samsung 128Gb EVO Plus SD card

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Jan 26 23:39:42 raven kernel: [219527.166471] mmc0: cannot verify signal voltage switch
  Jan 26 23:39:42 raven kernel: [219527.296399] mmc0: tuning execution failed
  Jan 26 23:39:42 raven kernel: [219527.296404] mmc0: error -22 whilst initialising SD card
  Jan 26 23:39:43 raven kernel: [219528.627397] mmc0: cannot verify signal voltage switch
  Jan 26 23:39:43 raven kernel: [219528.760476] mmc0: tuning execution failed
  Jan 26 23:39:43 raven kernel: [219528.760482] mmc0: error -22 whilst initialising SD card
  Jan 26 23:39:45 raven kernel: [219530.096201] mmc0: cannot verify signal voltage switch
  Jan 26 23:39:45 raven kernel: [219530.227975] mmc0: new ultra high speed SDR104 SDXC card at address 59b4
  Jan 26 23:39:45 raven kernel: [219530.228182] mmcblk0: mmc0:59b4 00000 119 GiB 
  Jan 26 23:39:45 raven kernel: [219530.230631] mmcblk0: unknown error -22 sending read/write command, card status 0x900
  Jan 26 23:39:45 raven kernel: [219530.844656] mmc0: cannot verify signal voltage switch
  Jan 26 23:39:45 raven kernel: [219530.973918] mmc0: tuning execution failed
  Jan 26 23:39:45 raven kernel: [219530.973923] mmc0: tried to reset card
  Jan 26 23:39:45 raven kernel: [219530.973926] blk_update_request: I/O error, dev mmcblk0, sector 0
  Jan 26 23:39:45 raven kernel: [219530.973929] Buffer I/O error on dev mmcblk0, logical block 0, async page read
  Jan 26 23:39:45 raven kernel: [219530.975764] ldm_validate_partition_table(): Disk read failed.
  Jan 26 23:39:45 raven kernel: [219530.975768] Dev mmcblk0: unable to read RDB block 0
  Jan 26 23:39:45 raven kernel: [219530.977623]  mmcblk0: unable to read partition table
  Jan 26 23:39:45 raven kernel: [219530.986856] mmcblk0: unknown error -22 sending read/write command, card status 0x900
  Jan 26 23:39:46 raven kernel: [219531.601118] mmc0: cannot verify signal voltage switch
  Jan 26 23:39:46 raven kernel: [219531.728358] mmc0: tried to reset card

  /dev/mmcblk0 and /dev/mmcblk0p1 appear, but are not usable.

  The card works fine in my Samsung phone. I can write to it using MTP.
  I have 32Gb and 64Gb SanDisk cards which work fine in the laptop AND the phone.

  So this is just an incompatibility with this particular card and this
  laptop - all other combinations work fine.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-25-generic 4.2.0-25.30
  ProcVersionSignature: Ubuntu 4.2.0-25.30-generic 4.2.6
  Uname: Linux 4.2.0-25-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  shevek     3066 F.... pulseaudio
   /dev/snd/controlC1:  shevek     3066 F.... pulseaudio
  CurrentDesktop: XFCE
  Date: Tue Jan 26 23:48:26 2016
  HibernationDevice: RESUME=UUID=22fd2208-7557-432d-bbff-95dd97905323
  InstallationDate: Installed on 2015-05-18 (253 days ago)
  InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1)
  MachineType: LENOVO 20CKCT01WW
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-25-generic.efi.signed root=/dev/mapper/xubuntu--vg-root ro noprompt persistent quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-25-generic N/A
   linux-backports-modules-4.2.0-25-generic  N/A
   linux-firmware                            1.149.3
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: Upgraded to wily on 2016-01-17 (10 days ago)
  dmi.bios.date: 08/20/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N11ET34W (1.10 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20CKCT01WW
  dmi.board.vendor: LENOVO
  dmi.board.version: 0B98417 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrN11ET34W(1.10):bd08/20/2015:svnLENOVO:pn20CKCT01WW:pvrThinkPadT550:rvnLENOVO:rn20CKCT01WW:rvr0B98417WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20CKCT01WW
  dmi.product.version: ThinkPad T550
  dmi.sys.vendor: LENOVO

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