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<div class="moz-cite-prefix">On 05/27/2013 04:59 AM, Mike Cloaked
wrote:<br>
</div>
<blockquote
cite="mid:CAOCAAm7X=ZcDyqzszYbYH9e027pNDNygJKfJwJ=pEekscHY+sQ@mail.gmail.com"
type="cite">
<div dir="ltr">On Mon, May 27, 2013 at 12:10 AM, Tom Pace <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:tompace101@gmail.com" target="_blank">tompace101@gmail.com</a>></span>
wrote:<br>
<div class="gmail_extra">
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">I
couldn't find any information about USB 3 and SANE, but on
my<br>
particular hardware it doesn't seem to be supported. My
Epson Perfection<br>
V33 works fine when plugged into a USB 2 port, but when
plugged into a<br>
USB 3 port it rarely works. I'm using the epkowa backend,
and have<br>
attached a log.<br>
For all I know it could be the scanner itself doesn't
support USB 3.<br>
Even though USB 3 is supposed to be backwards compatible,
I understand<br>
it doesn't always work as advertised.<br>
<br>
Thanks for any insight,<br>
</blockquote>
<div><br>
</div>
<div style="">Just for clarification does the scanner work
when plugged into a usb2 port on the "same" machine that
it doesn't work when plugged into a usb3 port?</div>
<div style=""><br>
</div>
<div style="">I have a different scanner (MFP) which was
plugged into a usb3 port and didn't work, but which worked
when plugged into a different machine that only had usb2 -
but I was chasing the wrong problem because it was the
same non-functional state when plugged into a usb2 port on
the original machine - and it turned out that the problem
was with udev not knowing how to have both a printer and
scanner function on the MFP working at the same time.</div>
<div style=""><br>
</div>
<div style="">However I would also like to know more about
whether usb3 is fully supported (both for any scanner that
does have usb3 but also for backwards compatibility with
usb2 on a computer that does not support usb3.</div>
<div style=""> </div>
</div>
-- <br>
mike c
</div>
</div>
</blockquote>
<br>
Yes, it is the same machine. It is a laptop running Linux Mint 13.
There are 2 USB3 ports that the scanner doesn't work very well on,
and 1 USB2 port that it works perfectly on. The specs on the scanner
itself do not mention USB3, so it seems that the backwards
compatibility is failing somewhere. It could be within SANE, or it
could be within the scanner itself, or I suppose it could even be
some other driver/hardware on the laptop. Does anyone have any ideas
how I could go about narrowing this down?<br>
<br>
Thanks,<br>
Tom<br>
<br>
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