Does this help? I'm using an Epson Perfection 2450 Photo, which some time ago I thought had gone wrong because it suddenly stopped working with my desktop computer. When using xsane it finds the scanner OK, then when I try to get a preview it puts up an error message:- "Error during read: Error during device I/O". Damn.
When I lspci on the desktop computer I get (pruning out everything other than the USB parts 00:02.0 USB controller: NVIDIA Corporation CK804 USB Controller (rev a2) 00:02.1 USB controller: NVIDIA Corporation CK804 USB Controller (rev a3) . . 01:07.0 USB controller: NEC Corporation OHCI USB Controller (rev 41) 01:07.1 USB controller: NEC Corporation OHCI USB Controller (rev 41) 01:07.2 USB controller: NEC Corporation uPD72010x USB 2.0 Controller (rev 02) 02:00.0 USB controller: VIA Technologies, Inc. VL80x xHCI USB 3.0 Controller (rev 03) Now it gets really interesting. If I plug the same scanner into my little 10" Toshiba laptop, it works perfectly. Both computers are running 64 bit Mint 17/Mate. I think the crucial difference might be in the hardware When I lspci on the laptop the USB controller lines all say Intel Corporation NM10/ICH7 Family USB UHCI Controller#1-4 (rev 02) So maybe the problem is actually with a USB driver? Intel has a reputation for being better supported than other hardware. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1250196 Title: sane plustek backend not working on USB 3 root hub To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1250196/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
