Libusb possibly causing non-scan with some scanners
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
libusb (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
Some scanners are not working in Feisty. Software goes thru the motions, but will not operate the scanner. Result is a "black" scan. A note from sane-developer-
Message: 1
Date: Sat, 31 Mar 2007 15:02:27 +0200
From: JKD <email address hidden>
Subject: Re: [sane-devel] LIde 20 scanner & kernels newer than
2.6.20-9
To: <email address hidden>
Message-ID: <email address hidden>
Content-Type: text/plain; charset=us-ascii
El Fri, 30 de Mar de 2007, a las 06:52:06PM -0700, Dean Loros dijo:
> > I, along with several Ubuntu users (Feisty Fawn testing) have had a
> > problem with sane & the USB_SUSPEND kernel option. Please take a look at
> > one of the reported bugs at:
> > https:/
> >
> > I would really like a working scanner & this seems to be a problem
> > between suspend for laptops & USB issues with desktop units.
> >
I'm using backend with no problems in kernel 2.6.20 disabling such
option. Most backends use libusb to establish communitation between device
and PC. Libusb doesn't provide functions to check that condition. May be
I'm wrong but If it's not a kernel problem (USB_SUSPEND is yet experimental)
I think that problem must be fixed in libusb libraries.
Jonathan Bravo
Please see the above bug in the indented text for more info.
Dean Loros
Is this symptom still reproducible in 8.10 beta?