[UPDATE] Transcend 16 GB SDHC in the dell mini 9 w Ubuntu

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[UPDATE]: Problem solved itself, without no clear reason. There seems to be a problem with Ubuntu and too short timeouts for the SD interface in the kernel. (SD via USB devices like in the EEE seem to have less problems, theoretically. Practically, at least in the first generation EEE, the hardware chosen for the SD card reader would overheat and become instable, unusable even.)

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Card from the package, into the dell, nothing happens at all. The output of dmesg shows bad news:

[ 13.393035] mmc0: new SDHC card at address b368
[ 13.393122] mmcblk0: mmc0:b368 SDC 15693824KiB
[ 13.393176] mmcblk0:<3>mmcblk0: error -84 transferring data
[ 13.395423] end_request: I/O error, dev mmcblk0, sector 0
[ 13.395431] Buffer I/O error on device mmcblk0, logical block 0
[ 13.395882] mmcblk0: error -84 transferring data
[ 13.395887] end_request: I/O error, dev mmcblk0, sector 0
[ 13.395893] Buffer I/O error on device mmcblk0, logical block 0
...snip...
[ 13.396827] mmcblk0: error -84 transferring data
[ 13.396832] end_request: I/O error, dev mmcblk0, sector 0
[ 13.396837] Buffer I/O error on device mmcblk0, logical block 0
[ 13.397300] mmcblk0: error -84 transferring data
[ 13.397306] end_request: I/O error, dev mmcblk0, sector 0
[ 13.397311] Buffer I/O error on device mmcblk0, logical block 0
[ 13.397325] ldm_validate_partition_table(): Disk read failed.
[ 13.397852] mmcblk0: error -84 transferring data
...snip...
[ 13.397857] end_request: I/O error, dev mmcblk0, sector 0
[ 13.397862] Buffer I/O error on device mmcblk0, logical block 0
[ 13.398464] mmcblk0: error -84 transferring data
...snip...

[ 13.398911] end_request: I/O error, dev mmcblk0, sector 0
[ 13.398919] Buffer I/O error on device mmcblk0, logical block 0
[ 13.399389] mmcblk0: error -84 transferring data
[ 13.399396] end_request: I/O error, dev mmcblk0, sector 0
[ 13.399402] Buffer I/O error on device mmcblk0, logical block 0
[ 13.399422] Dev mmcblk0: unable to read RDB block 0
[ 13.399840] mmcblk0: error -84 transferring data
[ 13.399850] end_request: I/O error, dev mmcblk0, sector 0
[ 13.400323] mmcblk0: error -84 transferring data
[ 13.400331] end_request: I/O error, dev mmcblk0, sector 0
[ 13.400759] mmcblk0: error -84 transferring data
[ 13.400767] end_request: I/O error, dev mmcblk0, sector 24
[ 13.401251] mmcblk0: error -84 transferring data
[ 13.401260] end_request: I/O error, dev mmcblk0, sector 24
[ 13.401718] mmcblk0: error -84 transferring data
[ 13.401724] end_request: I/O error, dev mmcblk0, sector 0
[ 13.402190] mmcblk0: error -84 transferring data
[ 13.402195] end_request: I/O error, dev mmcblk0, sector 0
[ 13.402209] unable to read partition table

Is the card prepartitioned at all? Maybe not. /dev/mmcblk0 exists, so there is still hope.

$ sudo fdisk /dev/mmcblk0

Unable to open /dev/mmcblk0

So much for hope. Card is recognized perfectly fine on the eeepc.