On Sat, 30 Apr 2011 21:08:49 +0100 mike cloaked wrote:

Does anyone know if something has changed in F14 recently that may have been the cause of this change to scanner recognition - or a way to work around this?

My first thought on hardware that hasn't been used in months it to try it on another machine, perhaps it just died. I know I had a canon scanner that just mysteriously didn't work and it proved to be dead.

On Sat, Apr 30, 2011 at 9:39 PM, mike cloaked mike.cloaked@gmail.com wrote:

I don't think so - looks to me like https://admin.fedoraproject.org/updates/sane-backends-1.0.22-1.fc14 broke the scanner support in my case.

The above or possibly a previous update to the same package may have been when the bug appeared: https://bugzilla.redhat.com/show_bug.cgi?id=701069

On Sun, May 1, 2011 at 2:21 PM, james tate binarynut@comcast.net wrote:

On 04/30/2011 04:08 PM, mike cloaked wrote:

...

Until a few months ago my scanner attached to the usb port on my machine was working fine under F14.

It needed a simple: Add two lines to /lib/udev/rules.d/65-libsane.rules under the Samsung Lines:

# Samsung SCX-4500W ATTRS{idVendor}=="04e8", ATTRS{idProduct}=="342b", ENV{libsane_matched}="yes"

and then firing up the Gimp I could scan immediately - however I have not used the scanner for a few months and today when I needed it there it is not recognised.

I tried (as root):

sane-find-scanner - and it gives:

"found USB scanner (vendor=0x04e8 [Samsung Electronics Co., Ltd.], product=0x342b [SCX-4500W Series]) at libusb:001:002"

but yet: "[root@home1 ~]# 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)."

My original config is still as it was (I checked) - and also the /etc/sane.d/dll.conf still contains the "xerox_mfp" entry at the bottom that used to be needed.

I also made selinux permissive in case that was the issue - and it was the same -

Does anyone know if something has changed in F14 recently that may have been the cause of this change to scanner recognition - or a way to work around this?

Thanks

I have a Samsung printer and if you used the Samsung drivers Selinux will give you headaches . It won't let the printer print.

It appears that the USB port has found the Samsung printer, As SU do a setenforce 0; fixfiles -F restore; setenforce 1; reboot

If that does not work do a reinstall of drivers. I had to do a  su- to get the drivers to install correctly .

Firstly this thread is about the scanner function of this multi-function printer - the printing function works perfectly well and has done for a long time using the .ppd file from the Samsung driver package. That is the only file I need from the samsung package to get the printer to work - and there is a web page describing how to set it up at http://userbase.kde.org/Troubleshooting/Samsung_scx-4500W

Printing works fine with selinux enforcing in F14, and prior to recent updates the scanning function was fine too - I believe that your selinux commands are completely unnecessary to get the printer section of this multifunction printer to work just fine.

Prior to recent updates to sane-backends (which I note from Bodhi were pushed with only autoQA and not with testing by a real user!) it was necessary to add the definition line to the file /lib/udev/rules.d/65-libsane.rules and then reboot the machine and then the scanner function also worked fine - however this post is about what has broken since the recent updates to the sane-backends package was released, and one of the recent additions was to add in support for this printer. It is since these changes that the scanner part of the system does not work any more. By the way I have never had any issue with selinux stopping this printer from working for both printing and scanning until this recent change.

If anyone knows whether there is a work-around I would love to hear it (by the way the copy function of the printer works as normal, so the scanning hardware is working so I can rule out hardware failure at this stage) and all other functions including network access appear normal. I am hoping that there will be a suggestion of a test I can run for further diagnostics in the bugzilla report so that this can be progressed to a point that a fix can be put in place to whatever has broken in the sane-backends package.