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Thanks for the replies so far, which I've followed up with ideas of my own. |
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(1) In /etc/sane.d/dll.conf (at the end) it lists |
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# Add support for the Epson-specific backend. Needs media-gfx/iscan installed |
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epkowa |
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I've installed 'iscan', but it makes no difference. |
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(2) The 2 pkgs which mb relevant & which have been updated > 180626 |
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are the kernel & 'gtk+:2' : syslog reports use of 'ehci-pci', |
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but that is enabled in my kernel 4.14.52 ; might 'gtk' be the problem ? |
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(3) I can scan without problems using Mint Xfce (on another partition), |
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so it's not a hardware problem. |
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(4) 'lsusb' lists "Bus 001 Device 004: ID 0418: 013b Seiko Epson Corp". |
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(5) the 'epkowa' driver is the latest version : a download from |
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'support.epson.net/linux/en/iscan.php?model=perfection-v550&version=1.0.1' |
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gets the same compressed files as are already installed (same sizes). |
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(6) the output from 'strace' is at |
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http://chass.utoronto.ca/~purslow/test/xsane-trace.d1 . |
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(7) When the scanner is switched on (already connected), syslog says : |
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usb1-3: new high-speed USB device number 3 using ehci-pci |
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New USB device found, idVendor 04b8, idProduct 013b |
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strings: MFr=1, Product=2, SerNo=0 |
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Product: EPSON Scanner; Manufacturer: EPSON |
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(8) Users at Ubuntu have been having problems starting Autumn 2017 : |
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https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug1728012 : |
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see esp # 20 & # 144 . |
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(9) Vuescan is a possible alternative : does anyone have experience ? |
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Further thoughts from anyone are very welcome. |
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-- |
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========================,,============================================ |
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SUPPORT ___________//___, Philip Webb |
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ELECTRIC /] [] [] [] [] []| Cities Centre, University of Toronto |
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TRANSIT `-O----------O---' purslowatchassdotutorontodotca |
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