why would my onboard SD/MMC reader suddenly stop working?

[Robert P. J. Day]

On Sun, 11 Nov 2012, Liam Proven wrote:

> On 11 November 2012 12:43, Robert P. J. Day <rpjday at crashcourse.ca> wrote:
> >
> >   currently, on my ASUS G74S laptop, i get absolutely no activity when
> > i insert a perfectly valid SD card.  used to be, it would be mounted
> > automatically -- now ... nothing.
> >
> >   i've rolled my own kernels for quite some time, and i just keep
> > using the same .config.  i've checked the kernel config options, and
> > pretty much everything under SD/MMC is selected as modules.
> >
> >   i've tailed the kern.log file, i've put udev in monitor mode trying
> > to figure out if *anything* recognizes that an SD card has been
> > inserted and nothing so far.  the mmc_block module is currently
> > loaded.
> >
> >   am i just stupidly missing something obvious?  i mean, besides the
> > reader itself being actually broken?
> >
> >   off to experiment some more ...
>
> [1] Try a different card.
> [2] Try the suspect card in a different machine and/or different reader.
> [3] Try under a different OS, e.g. a LiveCD.

  i'm kind of restricted as i'm not at the office where i have other
options.  the one thing i can confirm is that the card (micro SD)
boots my beagleboard xM just fine, so the card itself appears to be
healthy.  putting it in an adapter and popping it into my laptop is
what produces nothing, but i can at least confirm that the underlying
micro SD seems good.

rday

-- 

========================================================================
Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
========================================================================