[wellylug] usb behavior

E Chalaron filmtransfer.ec at gmail.com
Wed Apr 2 14:32:14 NZDT 2014


Hi all

I am facing something new (to me)

I got an Epson scanner flatbed etc ..; supported by xsane 32 bits libs + 
firmware from the windows install disc (esfw52.bin)
I got it to work flawlessly on a Debian stable machine.

I moved it to an Opensuse 13.1, for various reasons, got it to work too.

However I am facing 2 problems :

 1. Starting xsane as user sends me back insufficient rights .. despite
    adding user as a member of the scanner group.
 2. Ok let's run it as root in the meantime : all work but only for a
    bit. if I leave it inactive for too long, that's it ! the scanner
    seems to have disappeared as if there was a time out or something.


Coincidentally I do have the same issue with my wireless keyboard, if I 
leave it for a bit it takes a bit of time for, let's say, write 
something in a terminal.

So ... my questions are  :

  * Why as added to the scanner group I can't get the rights to use the
    scanner ?
  * How is the usb managed with 3.11.10-7-desktop ? or is it a UEFI
    thing that gets in my way ?


As I mentioned before works like a treat under Debian Stable. But that 
is beside the point, I want to understand what is happening

Many thanks
E

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