Ubuntu – Why does Ubuntu not detect the SD card

12.04sd card

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.

Best Answer

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 (in this case kernel modules) to automatically detect the SD card into the kernel.

Source codes

r852 driver: Ricoh 85xx xD/smartmedia card reader driver
sdhci_pci driver: Secure Digital Host Controller Interface PCI driver

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Ubuntu – What’s the difference between 12.04 and 12.10

12.04 and 12.10 are two different releases. They're named based on the date (April and October of 2012, respectively).

12.04 is a LTS which means it is provided security updates for five years without needing to upgrade to a newer release. Note that these updates do not upgrade everything to the latest version and non-security updates are only pushed back to fix major bugs.

The .1 on the end of 12.04.1 indicates the LTS has been re-released bundling in a load of updates. This means you'll have fewer things to upgrade after you do an install.

12.10 (a non LTS release) will get similar upgrades but for just two years. If you went with 12.10 it would probably be expected that you upgrade to 13.04 after its release but that isn't necessary until you want (as long as you do it within 24 months of release).

Which you want to use is not a simple question to answer because they provide different things. The LTS (12.04) should remain a stable, solid operating system but 12.10 (and then 13.04, 13.10 etc) will provide newer packages which may have improved features, perhaps at the cost of stability, though that is never by design.

If bandwidth is cheap and you have a bit of time, consider just testing both releases. Both ISOs allow you to burn to a USB stick and then you can test Ubuntu without installing it. It should let you know if everything works.

Ubuntu – How to see which video card on the Optimus-enabled machine is being used

You should use your package manager to install the Nvidia drivers because when an update comes down the pipe it makes it easier to upgrade the kernel and still keep your nvidia driver, or even get nvidia driver updates automatically.

If you have the other nvidia driver installed you will need to manually uninstall it. At least in my experience that is the most successful method. Those details are outlined in the read me file that came with the driver.

If you want to use the tested drivers that work well under Ubuntu then run this command

sudo apt-get install nvidia-current-updates

That should do it. If it is working successfully you should have an Nvidia control panel you can locate that in the dash.

It should give you your nvidia system temperature and other facts about your card.

hope this helps.

Best Answer

Related Solutions

Ubuntu – What’s the difference between 12.04 and 12.10

Ubuntu – How to see which video card on the Optimus-enabled machine is being used

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