Here's the deal: Some newer variants of the TIFM 7xx1 will NOT revert to sdhci-compatible operation with the setpci hack.
The tifm_7xx1 driver in our Feisty kernel is somehow broken. Replacing it with this one : http://prdownload.berlios.de/tifmxx/tifm-0.8b.tar.bz2 (newer upstream) fixes it. This is a confirmed bug. ** Changed in: linux-source-2.6.20 (Ubuntu) Status: Needs Info => Confirmed -- [feisty] regression: ti mmc card reader not working (worked flawlessly in edgy) https://launchpad.net/bugs/82680 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs