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I had this scanner working as user with xsane for several months. Yesterday it would only work as root. This is a permissions problems but I do't know how to fix it.
I am a member of the scanner group.
I get the following with sane-find-scanner as user:
found USB scanner (vendor=0x04b8 [EPSON], product=0x0142 [EPSON Perfection V33/V330]) at libusb:004:003
could not open USB device 0x1d6b/0x0002 at 004:001: Access denied (insufficient permissions)
could not open USB device 0x1d6b/0x0001 at 003:001: Access denied (insufficient permissions)
could not open USB device 0x413c/0x3200 at 002:002: Access denied (insufficient permissions)
could not open USB device 0x1d6b/0x0001 at 002:001: Access denied (insufficient permissions)
could not open USB device 0x1d6b/0x0001 at 001:001: Access denied (insufficient permissions)
Scanimage -L says:
device `epkowa:interpreter:004:003' is a Epson Perfection V330 Photo flatbed scanner
The relevant entry in /lib/udev/rules.d/49-sane.rules is
# EPSON Perfection V330 Photo
ATTRS{idVendor}=="04b8", ATTRS{idProduct}=="0142", MODE="0664", GROUP="scanner", ENV{libsane_matched}="yes"
I tried using the lts kernel and also reverted to the previous version of xsane, but that didn't help.
Funnily enough, Vuescan does run the scanner as user.
I have googled for this but although there are many people with similar problems their solutions, if any, haven't helped.
Can anyone suggest how to fix the permissions?
Last edited by acampbell (2014-02-07 10:36:25)
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After innumerable searches on Google I eventually tried the "obvious" solution of deleting ~/.sane, after which everything worked as expected with user! I'm surprised that no one else has reported this.
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