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I recently bought a Dell XPS L502X. The internal card reader had some trouble detecting cards but I was able to fix it using the workaround explained at

Now I can read my 8GB SDHC Card Class 10, but I am unable to detect a 4GB SDHC Class 4

I know that the sd is ok, because I can read it from my digital camera, and other computers too.

I post here, because I am interested in solve the problem using Ubuntu, but I have the same issue with the same memory on Windows too. (I have dual boot)

Does anyone have any idea? Thanks.

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Anyone wishing to close or flag as off-topic: This shouldn't be done as the OP is asking about configuring the device or kernel to work within Ubuntu. – hexafraction Sep 16 '12 at 23:58
up vote 1 down vote accepted

If you are having the same problems as you are on Windows in Ubuntu, this is appeares to be a hardware problem. I researched it and could find no one else with the same problem as you have, on either operating system. I would contact dell support about this one.

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It is not the answer, because with a MacBook I have the same problem with the same memory. But I choose your answer as correct because, it was the only one.... and because that would be the same answer that i would give if someone ask. – Fernando Jan 1 '13 at 18:07

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