Comment 14 for bug 1329566

Revision history for this message
Jim Bednar (jbednar) wrote : [Bug 1329566] Re: [Lenovo ThinkPad X240] RTS5227 card reader not recognized on running Ubuntu 14.04

| From: Christopher M. Penalver
| Date: Sep 2 11:09:17 2014 -0000
|
| Jim Bednar, please test the latest mainline kernel via
| http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.17-rc3-utopic/ . If for
| whatever reason it doesn't work out, one may uninstall it as advised in
| https://wiki.ubuntu.com/Kernel/MainlineBuilds .

I installed the new kernel on my normal setup as described there, but
ended up with a kernel panic "no init found" on reboot. So I removed
it and ran "sudo update-grub", which brought everything back to
normal.

In any case, the good news is that at least as of today, SD card
reading is working just fine on this machine, even with the stock
kernel (3.13.0), before and after installing and uninstalling the new
kernel! There have been some Ubuntu updates installed over the past
couple of days (not sure what), and maybe that fixed it? Or maybe
it's flaky hardware, and it will stop working in a few days or on the
next reboot.

Note that lspci still says "Unassigned class [ff00]: Realtek
Semiconductor Co., Ltd. RTS5227 PCI Express Card Reader (rev 01)", but
I can read files on the cards just fine.

Jim

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