(In reply to Stanislav Brabec from comment #31) > > Is there any difference between USB 2 and USB 3? All test so far were done with the scanner connected to an USB2.0 port (directly on the motherboard of my machine). So i connected the scanner to an USB3.0 port (directly on the motherboard of my machine). It does not work either. I will attache the logs USB3_calibrate.log USB3_journalctl_output_before_scan.txt USB3_journalctl_output_after_scan.txt One more thing that might be of importance: When i copy libsane-genesys.so.1.0.24 from my openSUSE 42.1 installation to /usr/lib64/sane of my openSUSE 42.2 RC1 installation and change libsane-genesys.so.1 to point at this file and copy libsane.so.1.0.24 from my openSUSE 42.1 installation to /usr/lib64 of my openSUSE 42.2 RC1 installation and change libsane.so.1 to point at this file then the scanner DOES NOT work although it works with those files on my openSUSE 42.1 installation.