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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… – 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
I configured TLP by disabling the USB autosuspend, but this didn't reactivate the usb 3.0 ports on my expresscard. – user252749 Jul 5 at 15:09
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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My BIOS didn't have an option to disable "USB S3 Wake-up", but disabling "legacy USB support" seemed to work for me. Previously, I was holding shift when booting to get the GRUB menu, then booting an older Linux kernel that didn't have the problem. – dmiller309 Apr 13 '15 at 2:51
I disabled the legacy usb support in my bios but this didn't reactivate the usb 3.0 ports on my expresscard. – user252749 Jul 5 at 15:11

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