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[Bug 1514821] Re: SD card reader on Dell E7250 doesn't work in Ubuntu 15.10

 

I've updated the bios to version A09 today and checked if the problem
still exists. It does.

So with the information from Blackgr i tested the two kernel versions
and i can indeed verify that kernel 4.1.8-040108-generic reads mt SDXC
card just fine (four line excerpt from dmesg):

[   92.252656] mmc0: new ultra high speed SDR104 SDXC card at address 0007
[   92.252866] mmcblk0: mmc0:0007 SD64G 58.1 GiB 
[   92.255131]  mmcblk0: p1
[   92.471332] EXT4-fs (mmcblk0p1): mounted filesystem with ordered data mode. Opts: (null)

tud254222 ~$ uname -a
Linux tud254222 4.1.8-040108-generic #201509211431 SMP Mon Sep 21 18:34:20 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

whereas kernel 4.1.9-040109-generic shows the erroneous behaviour (three
line excerpt from dmesg, repeated 4 times):

[   64.118346] sdhci: Timeout waiting for Buffer Read Ready interrupt during tuning procedure, falling back to fixed sampling clock
[   64.120131] mmc0: tuning execution failed
[   64.120136] mmc0: error -5 whilst initialising SD card

tud254222 ~/Downloads/4.1.9$ uname -a
Linux tud254222 4.1.9-040109-generic #201509291430 SMP Tue Sep 29 18:32:50 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Thank you Blackgr for the hard work!
My SD card is a Kingston SD10VG2/64GB SDXC


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

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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:
  Confirmed

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.

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References