Bug 440303

Which versions of sane-backends do you have installed (I guess your problem
should be fixed with sane-backends-1.0.19-10)?

Small request: in the future, when reporting error messages, please run the tool
in question with a locale of en_US.UTF-8 (e.g. "env LC_ALL=en_US.UTF-8 xsane").
This time, guessing what the error message means was fairly easy, but (having
chosen Latin instead of French as my second foreign language at the age of
twelve) next time may be harder to do that. I got wiser when I got older, but
that doesn't really help now ;-). Thanks.

the installed version of sane-backends is sane-backends-1.0.19-10.fc9 and my
scanner don't work.
The error message in English is:
Failed to open device `v4l:/dev/video0`:
Invalid argument.

(In reply to comment #2)
> the installed version of sane-backends is sane-backends-1.0.19-10.fc9 and my
> scanner don't work.

Please create two attachments to this bug with the output of the commands
"lshal" and "lsusb" (I'm assuming your scanner is connected via USB).

> The error message in English is:
> Failed to open device `v4l:/dev/video0`:
> Invalid argument.

I think that's unrelated -- you likely don't have a video for linux capable
device installed, so if the message bothers you, you can comment out the "v4l"
line in /etc/sane.d/dll.conf.

lsusb:
[root@localhost ~]# lsusb
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 002: ID 045e:00d2 Microsoft Corp.
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 04f2:b008 Chicony Electronics Co., Ltd
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 0483:2016 SGS Thomson Microelectronics Fingerprint Reader
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

I comment the "v4l" line in /etc/sane.d/dll.conf and now I have this message:
no devices available

with F8 I have for my Epson 5050
Bus 004 Device 003: ID 04b8:082b Seiko Epson Corp

Created attachment 300293 [details]
lshal

I am stupid...my usb connection was unplugged...
lsusb:
[root@localhost ~]# lsusb
Bus 002 Device 003: ID 04b8:082b Seiko Epson Corp. Stylus DX5050
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 002: ID 045e:00d2 Microsoft Corp.
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 04f2:b008 Chicony Electronics Co., Ltd
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 0483:2016 SGS Thomson Microelectronics Fingerprint Reader
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

My printing is here but when I launch xsane I have this error message  
"no devices available"
 also with root and user

Created attachment 300305 [details]
lshal | grep usb

(In reply to comment #7)
> Created an attachment (id=300305) [edit]
> lshal | grep usb

Please attach the complete output of the "lshal" command -- only lines with USB
in them don't help really much ;-).

Created attachment 301326 [details]
lshal complete

This doesn't seem to be the complete output to me -- I don't find your
scanner/printer and it doesn't begin like this:

Dumping 131 device(s) from the Global Device List:
-------------------------------------------------
[...]

Would you please attach the complete lshal output? Thanks.

when I do lshal command i have the text who is posted in the attachment...
I think it is too long for my console and I don't see all...

Created attachment 303363 [details]
lshal -t

I have a complete output with lshal -t
see the attachment

Created attachment 303425 [details]
lshal -t.txt

With lshal -u I can see the device scanner
See the lshal -u attachment

Created attachment 303432 [details]
lshal -u

I try "sane-find-scanner" and I have:

found USB scanner (vendor=0x04b8 [EPSON], product=0x082b [USB2.0 MFP(Hi-Speed)])
at libusb:002:003
found USB scanner (vendor=0x0483, product=0x2016) at libusb:003:002
  # Your USB scanner was (probably) detected. It may or may not be supported by
  # SANE. Try scanimage -L and read the backend's manpage.

First usb scanner is my all-in-one epson 5050 scanner
Second correspond to my Fingerprint Reader

When I do "scanimage -L" I have:
[dominique@localhost ~]$ scanimage -L

No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).

as root and user...

Yeepee...
I have the solution...
In /etc/sane.d/dll.conf there are two lines for epson:
epson
epson2

I comment "epson2":
epson
#epson2

and now my scanner work...

Changing version to '9' as part of upcoming Fedora 9 GA.
More information and reason for this action is here:
http://fedoraproject.org/wiki/BugZappers/HouseKeeping

This bug is present with F9...
And solution are same...
Commenting "epson2" line in /etc/sane.d/dll.conf

I confirmed the workaround is effective on my Fedora 9 using Epson Stylus
CX4600. I guess upstream should address the problem.

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