Comment 29 for bug 478761

Revision history for this message
rik (rikkroondijk) wrote : Re: [Bug 478761] Re: failed to start scanner: Invalid argument

hi Doug,

glad that worked for you :-)

switching ports did not for me at all

cheers

rik

On Mon, Mar 8, 2010 at 4:05 PM, Doug Morse <email address hidden> wrote:

> Hi rik (and others),
>
> Thanks for the suggestion.
>
> I did in fact resolved the problem, but before your post...
>
> I knew I wasn't crazy -- I HAD seen xsane work on the machine under
> WUBI. So, I booted from the install CD and just ran in "Live CD" mode.
> Still no joy.
>
> So then I rebooted a different machine -- a 5 mo. old laptop -- under
> WUBI and hooked the scanner to that. No joy, no joy, no joy.
>
> So, since I had wiped WinXP off the target machine (my desktop machine,
> 32bit), where the scanner has been working fine for years, I installed
> the original Epson driver / software on the laptop booted under Windows
> Vista. STILL no joy. I had inadvertently install the 32bit drivers
> instead of the 64bit ones. So, I uninstalled the 32bit Epson
> drivers/software and then installed the correct 64bit version. Still no
> workie (although I had never had the scanner attached to this 64bit
> laptop).
>
> At this point, I just wondered if the scanner had gotten into some weird
> state. So, I installed the 32bit Epson drivers/software on an older
> Dell Inspiron 9300 laptop running winxp sp3. FINALLY, my scanner worked
> again.
>
> At that point, I attached it back to the original, target machine. In
> so doing, I also plugged it BACK into its original USB port -- port 1,
> which is farther from it -- rather than in port 4 where I had plugged it
> into during the switch to Ubunutu because that port is physically
> closer.
>
> The good news is that the scanner reset twice during boot -- which is
> what it had always done under winxp on the same machine -- and low and
> behold, xsane worked perfectly!
>
> So, I'm not sure if the scanner got into some odd state -- possible, but
> I doubt it -- that hooking it up to an older Dell 32bit laptop fixed, or
> if, more likely, SIMPLY SWITCHING THE USB PORT fixed things??!?
>
> The target machine / my desktop has an ABIT KT7A mb with two on-board
> USB ports that I have never used for anything (they are USB 1.0 and
> hence slow). When I got the scanner, I also purchased a StarTech USB
> 2.0 4-port PCI card, and that provides the 4 ports I actually use.
>
> I've no idea why switching ports would matter, especially since /proc
> and lsusb show the exact same information for the scanner whether on
> port 1 or 4, but who knows. I suppose I could move the scanner over to
> ports 2, 3, and 4, respectively, and see what happens -- and am happy to
> do so if anyone needs me to -- but for now I'm simply happy that my
> scanner is working and working reliably again.
>
> Thanks all,
> Doug
>
> --
> failed to start scanner: Invalid argument
> https://bugs.launchpad.net/bugs/478761
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> of the bug.
>