[sane-devel] Xsane can't find scanner - again, but this one is USB

Gernot Hassenpflug aikishugyo at gmail.com
Fri Oct 30 09:29:51 UTC 2015

On Fri, Oct 30, 2015 at 6:05 PM, Johannes Meixner <jsmeix at suse.de> wrote:
> Hello,
> On Oct 30 15:38 Gernot Hassenpflug wrote (excerpt):
>> Does your computer have a USB3 port and are you using it?
>> Or does it have standard older USB2 ports only?

Thanks Johannes,

So the question one needs to keep in mind is not USB3 per se, but
whether the xhci kernel module is being used.
I'm sorry, I need to read up more on the issue, I did not realize the
xhci module was the problem regardless of whether USB port was 2 or 3
(assuming the labelling on the ports is not wrong).

> Attention: One needs to be careful with things
> that only look like USB2 ports, cf
> https://bugzilla.opensuse.org/show_bug.cgi?id=856794#c24
> (excerpt)
> --------------------------------------------------------------
> My machine has 4 USB ports, two labeled with
> the "super speed" USB logo (a.k.a. USB 3) and
> two labeled with the normal USB logo (a.k.a. USB 2)
> but for all 4 ports xhci is used and it fails on all 4 ports.
> --------------------------------------------------------------
> FYI, see also
> https://bugzilla.opensuse.org/show_bug.cgi?id=856794#c40

Will read this to get up to speed, pun intended.
Gernot Hassenpflug

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