I tried the latest mainline linux kernel for wily: no sd-card and the same errors in dmesg. Oddly enough, an older 3.19.0-31 kernel which was still in my grub list also showed the same behavior. I cannot recall this happening when i used 15.04 vivid.
I booted from a live stick with 15.04 and the SD-card was detected. I have added the dmesg output of the 4.3.0 mainline. Let me know if you need the dmesg output of the other two kernels and/or want me to do more testing and data collecting. ** Attachment added: "linux kernel 4.3.0 mainline dmesg output" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1514821/+attachment/4516751/+files/4.3.0.dmesg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1514821 Title: SD card reader on Dell E7250 doesn't work in Ubuntu 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1514821/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs