OK, after formatting the SD on a windows machine, it was correctly detected again. However, this also coincided with the kernel upgrade to 3.16.0-30-generic. I *think* I tried it with the new kernel and it didn't work but it's possible I'm misremembering.
In any case, my issue is resolved for now. Thank you so much for your help! I wonder if this still represents a bug somewhere if a broken SD card can not be detected. -- 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/1414619 Title: 1217:8221 [Dell Latitude E6430] O2 Micro Cardreader does not work on Ubuntu 14.10 Status in linux package in Ubuntu: Incomplete Bug description: Up until recently, SD cards used to be detected but were pretty slow. Since a couple of days (I'm not sure if a Kernel update happened that caused this), putting in a SD card has no effect and leads to no error messages being displayed in dmesg. ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: linux-image-3.16.0-29-generic 3.16.0-29.39 ProcVersionSignature: Ubuntu 3.16.0-29.39-generic 3.16.7-ckt2 Uname: Linux 3.16.0-29-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.14.7-0ubuntu8.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: wiecki 3421 F.... pulseaudio /dev/snd/controlC0: wiecki 3421 F.... pulseaudio Date: Mon Jan 26 13:17:32 2015 HibernationDevice: RESUME=UUID=4ba5761f-fae8-4eb6-97ce-f1f209cad27b InstallationDate: Installed on 2014-01-15 (376 days ago) InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MachineType: Dell Inc. Latitude E6430 ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-29-generic root=/dev/mapper/kubuntu--vg-root ro quiet splash 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-3.16.0-29-generic N/A linux-backports-modules-3.16.0-29-generic N/A linux-firmware 1.138.1 SourcePackage: linux UpgradeStatus: Upgraded to utopic on 2014-10-24 (93 days ago) dmi.bios.date: 08/19/2014 dmi.bios.vendor: Dell Inc. dmi.bios.version: A16 dmi.board.vendor: Dell Inc. dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA16:bd08/19/2014:svnDellInc.:pnLatitudeE6430:pvr01:rvnDellInc.:rn:rvr:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E6430 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1414619/+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