I can confirm on my lenovo y700 (15something) that the SD-cardreader is not working (it did once) if SD-card is inserted, dmesg shows:
[11328.070304] mmc0: tuning execution failed [11328.070315] mmc0: error -5 whilst initialising SD card I am on kernel: 4.4.0-28-generic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1553688 Title: Lenovo Y700-17ISK: mmc0: Unknown controller version (3) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553688/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs