I was facing the same problem with 3.8, updated to 3.9 but its exactly the same:
dmesg: [ 3219.307280] mmc0: card e624 removed [ 3456.883573] mmc0: error -110 whilst initialising SD card [ 3458.295000] mmc0: error -110 whilst initialising SD card [ 3459.706588] mmc0: error -110 whilst initialising SD card lspci -v 13:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader (rev 01) Subsystem: Hewlett-Packard Company Device 1657 Flags: bus master, fast devsel, latency 0, IRQ 50 Memory at c3500000 (32-bit, non-prefetchable) [size=4K] Expansion ROM at c2400000 [disabled] [size=64K] Capabilities: [40] Power Management version 3 Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [70] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [140] Device Serial Number 00-00-00-01-00-4c-e0-00 Kernel driver in use: rtsx_pci Tried with a SDHC Class 10 (Sandisk) and a Micro SD adapter, both give the same error! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1158982 Title: SD card inaccesible: mmc0: error -110 whilst initialising SD card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1158982/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs