Ubuntu: Why does Ubuntu not detect my SD card?



Question:

I can't mount my SD card. I'm using Ubuntu 12.04 LTS on an Asus K55V (Intel), and I have a sd card slot, but Ubuntu doesn't detect when I put a SD card in the slot. Not Ubuntu nor other program.


Solution:1

Run these commands from a command prompt:

sudo modprobe -r r852; sudo modprobe -r sdhci_pci; sudo modprobe r852; sudo modprobe sdhci_pci  

This uses modprobe to unload and reload the device drivers to automatically detect the sd card into the kernel.

See docs for modprobe

Source code for driver r852

Source code for driver sdhci_pci


Solution:2

For Broadcom Corporation BCM57765/57785, in addition to the answer below, I had to add lines to modprobe.d (before commands above)

$ sudo sh -c 'echo options sdhci debug_quirks=0x40 >> /etc/modprobe.d/sdhci-pci.conf'  

AND

$ sudo setpci -s 00:1c.2 0x50.B=0x41  

[source]


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