Re: [gentoo-user] Is my mobo incompatible with Linux?

[pk]

On 2012-02-24 17:34, covici@××××××××××.com wrote:
> Hi.  I have a Supermicro c7P67-o motherboard and I have another system
> using windows with no problems.  However, when I am trying to use the
> board with gentoo -- various kernels -- including 3.2.6-gentoo -- I am
> having lots of problems with USB.  The board has two usb3 connectors and
> most of the time when I plug a usb3 enclosure into one of those, I get
> lots of errors such as
> Feb 23 10:27:31 ccs kernel: xhci_hcd 0000:04:00.0: Timeout while waiting
> for address device command
> Feb 23 10:27:31 ccs kernel: usb 3-1: device not accepting address 2,
> error -62

Hm... Just a "hunch" here since I don't know the exact details regarding
your setup but you might experience something similar to what I had for
a while before figuring out how to fix it... On my Asus Sabertooth 990FX
motherboard I had similar problems with USB (don't remember the exact
error messages but yours seems familiar). This was fixed by setting the
IOMMU to OFF in BIOS (UEFI). Perhaps want to give it a try to see if it
works for you? Of course you'll loose any benefit from IOMMU (if you are
running VMs) but...

Best regards

Peter K