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I have a Samsung Series 9 NP900X4C ultrabook, and since I upgraded to 12.10 and then 13.04, my USB 3.0 ports (two on the right side) don't work anymore after my computer wakes up from suspend mode.

I need to restart my computer to get these two USB 3.0 ports working again.

My USB 2.0 port (one on the left side) doesn't encounter this issue. How do I fix this?

$ cat /sys/bus/usb/devices/*/power/level
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The easiest way is to install TLP and check ++USB section ..askubuntu.com/questions/285434/… –  Qasim Jun 15 '13 at 12:59
I added the cat output. And I didn't install TLP. I checked the USB section, but I think it's not related...thx –  Sulliwane Jun 16 '13 at 13:56

1 Answer 1

up vote 1 down vote accepted

I solved it going into the BIOS (F2 key when booting up) and activating "USB S3 Wake_up" option under the Advanced tab. enter image description here

Hope this works for you!

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