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On Tuesday, 17 July 2018 15:23:06 BST Jack wrote: |
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> On 2018.07.17 02:38, Philip Webb wrote: |
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> > My scanner -- Epson Perfection V550 Photo -- is suddenly not detected |
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> > |
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> > when I enter 'xsane' (via the menu or Alt-F2), it says "no devices |
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> > available". |
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> > |
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> > I last used it without any problem 180626. |
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> > Since then, I've updated my kernel & some other pkgs. |
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> > I've checked the USB physical connection ; the scanner 'ready' light |
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> > is on. |
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> > I've remerged 'xsane' & 'sane-backends' & rebooted. |
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> > |
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> > Following my notes, I've done : |
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> > root:500 ~> sane-find-scanner |
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> > ... |
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> > found USB scanner (vendor=0x04b8 [EPSON], product=0x013b [EPSON |
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> > |
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> > Scanner]) at libusb:001:004 |
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> > |
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> > # Your USB scanner was (probably) detected. |
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> > # It may or may not be supported by SANE. |
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> > # Try scanimage -L and read the backend's manpage. |
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> > |
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> > root:501 ~> scanimage -L |
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> > device `epkowa:interpreter:001:004' is a Epson Perfection V550 Photo |
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> > flatbed scanner |
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> > |
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> > The first time I ran these commands (I don't remember which), |
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> > the scanner itself made the noises it usually does when starting. |
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> > |
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> > This model needs a driver which is not included in 'sane-backends' |
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> > & which I downloaded from Nvidia & installed when I got the scanner |
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> > |
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> > 2017. |
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> > |
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> > The 'epkowa' driver is installed : |
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> > |
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> > root:505 ~> locate epkowa |
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> > |
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> > /etc/sane.d/epkowa.conf |
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> > /usr/lib64/sane/libsane-epkowa.la |
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> > /usr/lib64/sane/libsane-epkowa.so.1 |
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> > /usr/lib64/sane/libsane-epkowa.so.1.0.15 |
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> > /usr/lib64/sane/archive/libsane-epkowa.la |
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> > /usr/lib64/sane/archive/libsane-epkowa.so.1 |
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> > /usr/lib64/sane/archive/libsane-epkowa.so.1.0.15 |
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> > |
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> > My user is a member of the 'scanner' group : |
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> > scanner:x:104:purslow |
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> > |
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> > I am puzzled : does anyone have a suggestion what to do next ? |
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> |
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> Does the scanner currently show up if you do "lsusb" ? |
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> Does dmesg say anything when you plug the scanner in? |
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> Is it possible that the driver needs updating to deal with a newer |
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> kernel? |
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> |
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> Jack |
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|
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I've also had problems with my WiFi/bluetooth with all kernels after 4.9.95. |
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The kernel binds and unbinds the USB device in a loop pegging the CPU. I'm |
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mentioning it here in case it is related (the USB part), but sadly I have no |
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solution for it yet. :-( |
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|
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-- |
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Regards, |
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Mick |
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