The claimed fix via the sysfs parameter for mmc_core does not work for me. See my comment at https://bugs.launchpad.net/ubuntu/+source/linux/+bug/477106/comments/18.
I also believe Bug #424877 may be related.
The claimed fix via the sysfs parameter for mmc_core does not work for me. See my comment at https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/477106/ comments/ 18.
I also believe Bug #424877 may be related.