Comment 0 for bug 1523178

Under ubuntu 15.10 I can't use my Sandisk ultra 64GB microSD (with a SD card adapter) with the built in SD card reader. I seem to be getting the following errors.

[ 1268.126602] sdhci: Timeout waiting for Buffer Read Ready interrupt during tuning procedure, falling back to fixed sampling clock
[ 1268.128381] mmc0: tuning execution failed
[ 1268.128386] mmc0: error -5 whilst initialising SD card
[ 1268.554319] sdhci: Timeout waiting for Buffer Read Ready interrupt during tuning procedure, falling back to fixed sampling clock
[ 1268.556098] mmc0: tuning execution failed
[ 1268.556103] mmc0: error -5 whilst initialising SD card
[ 1268.993995] sdhci: Timeout waiting for Buffer Read Ready interrupt during tuning procedure, falling back to fixed sampling clock
[ 1268.995778] mmc0: tuning execution failed
[ 1268.995786] mmc0: error -5 whilst initialising SD card
[ 1269.453666] sdhci: Timeout waiting for Buffer Read Ready interrupt during tuning procedure, falling back to fixed sampling clock
[ 1269.455449] mmc0: tuning execution failed
[ 1269.455458] mmc0: error -5 whilst initialising SD card

It was working fine under vivid with kernel 3.19.

Went through all the kernels from 3.19 to 4.2 (http://kernel.ubuntu.com/~kernel-ppa/) and found out that until 4.1.8-040108-generic the SD card reader would play fine and only after I put 4.1.9 and on I started getting the errors.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-4.2.0-19-generic 4.2.0-19.23
ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6
Uname: Linux 4.2.0-19-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC2: alex 1606 F.... pulseaudio
 /dev/snd/controlC0: alex 1606 F.... pulseaudio
 /dev/snd/controlC1: alex 1606 F.... pulseaudio
CurrentDesktop: Unity
Date: Sun Dec 6 01:40:18 2015
HibernationDevice: RESUME=UUID=acf75838-59f9-4461-9fe4-e9bdf33b28be
InstallationDate: Installed on 2015-10-27 (38 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
MachineType: Dell Inc. Latitude E7450
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-19-generic root=UUID=c654e4bc-b0e1-4a85-844f-99f068b2efff ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.2.0-19-generic N/A
 linux-backports-modules-4.2.0-19-generic N/A
 linux-firmware 1.149.3
SourcePackage: linux
UpgradeStatus: Upgraded to wily on 2015-11-04 (31 days ago)
dmi.bios.date: 10/28/2015
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A08
dmi.board.name: 0R1VJD
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA08:bd10/28/2015:svnDellInc.:pnLatitudeE7450:pvr:rvnDellInc.:rn0R1VJD:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E7450
dmi.sys.vendor: Dell Inc.