A quick google [1] says: "SD card reader has been not work for a long time, after I upgrade to macOS Sierra version 10.12.6 , it works now :P."
[1] https://github.com/coldnew/macbookpro-2015-config -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1620422 Title: Macbook Pro Retina 12,1 SD Card Reader Doesn't Work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1620422/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
