I have now applied the patch found here: https://chromium.googlesource.com/chromiumos/third_party/kernel- next/+/fd1acc54a6b3db4e6503ccc4a9349f28b436031a
The result is that I am successfully able to mount and use my SD card, hooray! dmesg output looks like this: [ 77.803116] mmc0: Skipping voltage switch [ 78.804834] mmc0: new high speed SDHC card at address 59b4 [ 78.808642] mmcblk0: mmc0:59b4 SD32G 29.5 GiB [ 78.809606] mmcblk0: p1 It looks like I get a steady read rate of 20 MB/s. I *think* the corresponding read rate I get in OS X is about 30 MB/s, which in any event is what the SD card is advertised as supporting. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1307674 Title: Broadcom BCM57765/57785 SDXC/MMC Card Reader doesn't work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1307674/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
