Comment 51 for bug 247819

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Nico Zanferrari (nicozanf) wrote :

Hi, I have the same problem with 9.04 (Jaunty 64 bit = 2.6.28-11) on a Dell XPS M1330, with the internal Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 22).
The same SD cards work perfectly on an external USB reader. I didn't have any problem on Intrepid 32 bit.

Following a similar bug (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/323159) I've found a simple workaround - add the line:

blacklist sdhci

to /etc/modprobe.d/blacklist.conf

Hope this helps ;-))