On Mon, Jun 15, 2020 at 04:28:17PM -0400, H wrote: > I just installed C7 on a new computer and despite Simple Scan being installed as part of C7, I have not been able to get it to recognize my Canon scanner connected to a USB port. I did have it running on another computer with C7 so there should not be any inherent issues. > > On a lark I installed gscan2pdf and sane-backends-drivers-scanners and sane-find-scanner found it: > > found USB scanner (vendor=0x04a9 [Canon], product=0x1908 [CanoScan]) at libusb:001:010 > > I perused my notes for the old computer but did not see I installed any additional software to get it going but I might be wrong. > > What have I missed? > On my C7 box, simple-scan requires libsane. try: ldd simple-scan |grep -i sane. # ldd /usr/bin/simple-scan | grep -i sane libsane.so.1 => /lib64/libsane.so.1 (0x00007f3668291000) ldd doesn't show any other sane dependencies, but I'd sorta think that simple-scan would also need sane-backends as well. Here's all the sane things I have installed, FYI: # ldd /usr/bin/simple-scan | grep -i sane libsane.so.1 => /lib64/libsane.so.1 (0x00007f3668291000) [root at fcshome log]# yum list installed | grep -i sane libsane-hpaio.x86_64 3.15.9-5.el7 @base sane-backends.x86_64 1.0.24-12.el7 @base sane-backends-devel.i686 1.0.24-12.el7 @base sane-backends-devel.x86_64 1.0.24-12.el7 @base sane-backends-doc.noarch 1.0.24-12.el7 @base sane-backends-drivers-cameras.i686 1.0.24-12.el7 @base sane-backends-drivers-cameras.x86_64 1.0.24-12.el7 @base sane-backends-drivers-scanners.i686 1.0.24-12.el7 @base sane-backends-drivers-scanners.x86_64 1.0.24-12.el7 @base sane-backends-libs.i686 1.0.24-12.el7 @base sane-backends-libs.x86_64 1.0.24-12.el7 @base sane-frontends.x86_64 1.0.14-19.el7 @base xsane.x86_64 0.999-9.el7 @base xsane-common.x86_64 0.999-9.el7 @base xsane-gimp.x86_64 0.999-9.el7 @base also FYI, I'm using a Canon LiDE 210, which works fine for me. Good luck! Fred -- ---- Fred Smith -- fredex at fcshome.stoneham.ma.us ----------------------------- "For the word of God is living and active. Sharper than any double-edged sword, it penetrates even to dividing soul and spirit, joints and marrow; it judges the thoughts and attitudes of the heart." ---------------------------- Hebrews 4:12 (niv) ------------------------------