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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