Major problems with USB-scanners in Feisty Fawn

[Jenske]

Though Vuescan worked perfectly in Ubuntu Dapper Drake (6.06), it was impossible for me to get this program working in Feisty Fawn (7.04). Looking through several forums I discovered it has probably something to do with libusb. The author of VueScan informed me also that this problem would be caused by libusb-problems.

The scanner is a Minolta Dimage Dual II (AF-2820U) USB-slidescanner connected through a USB port.

[Oleksij Rempel (olerem)]

please take a look to this bug https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/85488

[kairuri (peter-utopia)]

I have used Vuescan very successfully with older kubuntu releases and now with Feisty Fawn (7.04).

It works flawlessly with my Nikon coolscan ls-5000 (I scanned 1016 slides last week) and also with my Epson V700 - no problems.

I suggest you check your permissions on the /dev/bus/usb devices, you need rw permissions for yourself
# ls -l /dev/bus/usb/002/037
crw-rw-r-- 1 root scanner 189, 164 2007-07-11 20:29 /dev/bus/usb/002/037

I have put myself in group scanner and check udev, I think the critical lines are:
in /etc/udev/rules.d/40-permissions.rules

# USB devices (usbfs replacement)
SUBSYSTEM=="usb_device", MODE="0664"

and
in /etc/udev/rules.d/45-libsane.rules

# Nikon Super Coolscan LS-5000 ED
SYSFS{idVendor}=="04b0", SYSFS{idProduct}=="4002", MODE="664", GROUP="scanner"

Try using your scanner as root, if it works, permissions are your problem. There is plenty of advice on the vuescan web page, and in the sane docs, and also for udev permissions in ubuntu forums.

[Luis Neves (luisneves)]

I have Feisty also and Minolta Scan Elite II and cannot access the scanner. Even with root. Checked all permissions and groups.
It worked fine on the older Ubuntu releases.
strace on vuescan dont give me anything conclusive to me.

[Jenske (radiostermino)]

Thanks for your answer. I've discoverd what was wrong: the libstdc
wasn't loaded in Dapper Drake. I discovered this when running vuescan as
root in a terminal, when it mentioned this file being missing. I must
say it cost me several days, however, to realize this problem could only
be solved installing (using Synaptic) this "library".

But in the end, all works fine again, so I'm no longer an unhappy girl.

Thanks.

Op do, 19-07-2007 te 20:03 +0000, schreef Luis Neves:

> I have Feisty also and Minolta Scan Elite II and cannot access the scanner. Even with root. Checked all permissions and groups.
> It worked fine on the older Ubuntu releases.
> strace on vuescan dont give me anything conclusive to me.
>

[Andreas Moog (ampelbein)]

This bug report is being closed due to your last comment regarding this being fixed with an update. For future reference you can manage the status of your own bugs by clicking on the current status in the yellow line and then choosing a new status in the revealed drop down box. You can learn more about bug statuses at https://wiki.ubuntu.com/Bugs/Status . Thank you again for taking the time to report this bug and helping to make Ubuntu better. Feel free to submit any future bugs you may find.