Fedora 16, i686, 32 bit. Epson Stylus Photo RX520 all-in-one printer/scanner, USB. The device is reported by gscan2pdf as Epson PM-A750 With version 1.0.4-1.fc16 installed, I get the following broken behaviour: - start gscan2pdf - select epson scanner - click scan options tab, it comes up with "lineart" mode selected - select a different mode, "color" - the device options are removed from the dialog, the progress indicator starts moving - after a couple of seconds, the progress indicator stops - problem 1: unfortunately, the dialog section "device options" remains empty! (expected: device option gets filled with controls) - problem 2: despite the empty device options, I click "scan" anyway, but the result is an error message (it says that the threshold parameter doesn't apply to the current scan mode, which means, parameters from the original dialog opening are still effective.)
When I had downgraded to the older 1.0.0 version, it worked. The device options section gets correctly updated each time I switch to a different scan "mode". I was able to scan in the desired mode.
I will provide some additional findings, in the hope it helps. I reinstalled the newer gscan2pdf. As expected I still have the problem that the device option doesn't get updated when switching "mode". I can quit and restart gscan2pdf - and it will remember the "mode" selected in the previous run - and it will show device options. However, after the restart, the device options section is filled correctly. I can even scan in the desired mode. It's simply necessary to restart (the newer 1.0.4) gscan2pdf each time I switch the scan mode.
Bernhard, could you please update the gscan2pdf package to something newer? This bug is still present, and fedora is still at 1.0.4 I downloaded the upstream package version 1.0.6 from http://sourceforge.net/projects/gscan2pdf/files/gscan2pdf/ which works fine.
gscan2pdf-1.0.6-1.fc17 has been submitted as an update for Fedora 17. https://admin.fedoraproject.org/updates/gscan2pdf-1.0.6-1.fc17
Package gscan2pdf-1.0.6-1.fc17: * should fix your issue, * was pushed to the Fedora 17 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing gscan2pdf-1.0.6-1.fc17' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-12679/gscan2pdf-1.0.6-1.fc17 then log in and leave karma (feedback).
Thanks a lot for the updated build. It works for me and I've given karma (others should give karma, too!) Regarding the bugs. I still had some issues with the latest 1.0.6. I removed $HOME/.gscan2pdf settings file, and now things look good.
gscan2pdf-1.0.6-1.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report.