Bug 1554032

Note: you have to reboot to get this to take:

$ scanimage -L
device `epkowa:interpreter:001:003' is a Epson Perfection V300 flatbed scanner
device `net:localhost:epkowa:interpreter:001:003' is a Epson Perfection V300 flatbed scanner

$ xsane net:localhost
worked

Unplugging and replugging the scanner:
$ scanimage -L
device `epkowa:interpreter:001:008' is a Epson Perfection V300 flatbed scanner
device `net:localhost:epkowa:interpreter:001:008' is a Epson Perfection V300 flatbed scanner

$ xsane net:localhost
worked

Hi Todd,

thank you for reporting this issue! I'll create another udev file for just saned - because IMHO it doesn't need to be applied when saned isn't installed (sane-backends-daemon isn't installed) and I rewrite the patch a little bit.
Your patch sets the group ownership forcefully to saned, which blocks other groups to access usb port - I know, probably there will not be other groups, which try to access the port, but IMO it is bad to block device this way. I can do the same thing, but non-blocking way, by ACL. So the proposed rule is:

ENV{libsane_matched}=="yes", RUN+="/usr/bin/setfacl -m g:saned:rw $env{DEVPATH}"

Would you mind testing the issue when I create testing package?

sane-backends-1.0.27-15.fc27 has been submitted as an update to Fedora 27. https://bodhi.fedoraproject.org/updates/FEDORA-2018-27b31a3903

sane-backends-1.0.27-15.fc27 has been pushed to the Fedora 27 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-27b31a3903

(In reply to Zdenek Dohnal from comment #2)
> Would you mind testing the issue when I create testing package?

Sure.  Let me know when I can see the new RPM.

See link in #3, you can download rpms from the link and install it, or enable fedora-updates-testing repo temporarily and update sane-backends:

$ sudo dnf update --enablerepo=updates-testing sane-backends sane-backends-daemon sane-backends-drivers-scanners sane-backends-libs

sane-backends-1.0.27-15.fc27 has been pushed to the Fedora 27 stable repository. If problems still persist, please make note of it in this bug report.

Upgrading:
 sane-backends                   x86_64  1.0.27-15.fc27  updates-testing  791 k
 sane-backends-daemon            x86_64  1.0.27-15.fc27  updates-testing   59 k
 sane-backends-drivers-cameras   i686    1.0.27-15.fc27  updates-testing   57 k
 sane-backends-drivers-cameras   x86_64  1.0.27-15.fc27  updates-testing   55 k
 sane-backends-drivers-scanners  i686    1.0.27-15.fc27  updates-testing  2.5 M
 sane-backends-drivers-scanners  x86_64  1.0.27-15.fc27  updates-testing  2.4 M
 sane-backends-libs              i686    1.0.27-15.fc27  updates-testing  111 k
 sane-backends-libs              x86_64  1.0.27-15.fc27  updates-testing  106 k


Did not work

and I did a 
     # systemctl restart saned.socket
to make sure

I never rebooted though.

And I did a dnf downgrade and it is still busted.

Can you try upgrading the package and unplugging and plugging USB scanner?

I am on 1.0.27-15

I see no additional upgrades.

# dnf --enablerepo=* upgrade sane-backends 
...
Dependencies resolved.
Nothing to do.
Complete!

This update hosed the thing.  I can not get `xsane net` of PDF Studio to work at all.  The `xsane net:localhost` error is 

   Failed to open device `net:localhost`: Invalid argument

Plugging, unplugging, rebooting, accusing sand's parents of not being married does not help

Would you mind trying these rpms? https://zdohnal.fedorapeople.org/.sane/

Mumble, mumble

# ls
imagescan-3.32.0-8.1.x86_64.rpm
sane-backends-1.0.27-16.fc27.x86_64.rpm
sane-backends-daemon-1.0.27-16.fc27.x86_64.rpm
sane-backends-daemon-debuginfo-1.0.27-16.fc27.x86_64.rpm
sane-backends-debuginfo-1.0.27-16.fc27.x86_64.rpm
sane-backends-debugsource-1.0.27-16.fc27.x86_64.rpm
sane-backends-devel-1.0.27-16.fc27.x86_64.rpm
sane-backends-drivers-cameras-1.0.27-16.fc27.x86_64.rpm
sane-backends-drivers-cameras-debuginfo-1.0.27-16.fc27.x86_64.rpm
sane-backends-drivers-scanners-1.0.27-16.fc27.x86_64.rpm
sane-backends-drivers-scanners-debuginfo-1.0.27-16.fc27.x86_64.rpm
sane-backends-libs-1.0.27-16.fc27.x86_64.rpm
sane-backends-libs-debuginfo-1.0.27-16.fc27.x86_64.rpm


# dnf install *.rpm
Last metadata expiration check: 0:48:11 ago on Tue 17 Apr 2018 02:50:02 AM PDT.
Error: 
 Problem: cannot install both sane-backends-1.0.27-16.fc27.x86_64 and sane-backends-1.0.27-16.fc27.x86_64
  - conflicting requests
(try to add '--allowerasing' to command line to replace conflicting packages or '--skip-broken' to skip uninstallable packages)

# rpm -qa \*sane-backends\*
<nothing>

(In reply to Todd from comment #12)
> Mumble, mumble
> 
> # ls
> imagescan-3.32.0-8.1.x86_64.rpm
What about moving out this rpm if you want to install by wildcard... probably it and other rpms are meddling with each other.
> 

> # rpm -qa \*sane-backends\*
> <nothing>

Do you know you wanted to find exact name '*sane-backends*' with it?... It's logical to find nothing.

`# dnf clean all` fixed the issue with dnf.

And afterwards I had to reinstall Epon's stuff (iscan-gt-f720-bundle-1.0.1.x64.rpm), xsane, and simple-scan.

And do a:
# systemctl restart saned.socket

Now both `$ xsane net:localhost` and PDF Studio are happy campers.  They are also a lot faster too.

Yippee!

Thank you!

How soon will we see these in the repos?

-T

Check bodhi.fedoraproject.org, you can fasten the process by adding karma.

sane-backends-1.0.27-16.fc27 has been submitted as an update to Fedora 27. https://bodhi.fedoraproject.org/updates/FEDORA-2018-bb4f22052e

(In reply to Todd from comment #14)
 
> And do a:
> # systemctl restart saned.socket

Forgot to do a 
     # systemctl enable saned.socket
before the restart

sane-backends-1.0.27-16.fc27 has been pushed to the Fedora 27 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-bb4f22052e

sane-backends-1.0.27-17.fc27 has been submitted as an update to Fedora 27. https://bodhi.fedoraproject.org/updates/FEDORA-2018-cec6c36fcc

Will this show up in FC28 beta too (I am in process of upgrading all my Fedora machines)?

It will show up in F28 after it will go through bodhi - that means currently it isn't in F28, but it is available in bodhi - see bodhi.fedoraproject.org for pending sane-backends updates. It will be pushed to F28 when the update will get enough karma. Please add karma to fasten the process.

sane-backends-1.0.27-17.fc27 has been pushed to the Fedora 27 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-cec6c36fcc

sane-backends-1.0.27-17.fc27 has been pushed to the Fedora 27 stable repository. If problems still persist, please make note of it in this bug report.

This message is a reminder that Fedora 27 is nearing its end of life.
On 2018-Nov-30  Fedora will stop maintaining and issuing updates for
Fedora 27. It is Fedora's policy to close all bug reports from releases
that are no longer maintained. At that time this bug will be closed as
EOL if it remains open with a Fedora  'version' of '27'.

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version prior this bug is closed as described in the policy above.

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Fedora 27 changed to end-of-life (EOL) status on 2018-11-30. Fedora 27 is
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Thank you for reporting this bug and we are sorry it could not be fixed.

Actually fixed in current release, but automaton didn't close the bug.