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I'm trying to find out why a very old and basic CanonScan N650U flatbed usb |
| 2 |
scanner stopped working after a recent an update to sane-backends-1.1.1-r2: |
| 3 |
|
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Installed versions: 1.1.1-r2(09:12:17 24/02/22)(ipv6 usb zeroconf - |
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gphoto2 -snmp -systemd -threads -v4l -xinetd ABI_MIPS="-n32 -n64 -o32" |
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ABI_S390="-32 -64" ABI_X86="64 -32 -x32" SANE_BACKENDS="canon canon630u |
| 7 |
genesys plustek -abaton -agfafocus -apple -artec -artec_eplus48u -as6e - |
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avision -bh -canon_dr -canon_lide70 -canon_pp -cardscan -coolscan -coolscan2 - |
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coolscan3 -dc25 -dc210 -dc240 -dell1600n_net -dmc -epjitsu -epson -epson2 - |
| 10 |
escl -fujitsu -gt68xx -hp -hp3500 -hp3900 -hp4200 -hp5400 -hp5590 -hpljm1005 - |
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hpsj5s -hs2p -ibm -kodak -kodakaio -kvs20xx -kvs40xx -kvs1025 -leo -lexmark - |
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ma1509 -magicolor -matsushita -microtek -microtek2 -mustek -mustek_pp - |
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mustek_usb -mustek_usb2 -nec -net -niash -p5 -pie -pieusb -pixma -plustek_pp - |
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pnm -qcam -ricoh -ricoh2 -rts8891 -s9036 -sceptre -sharp -sm3600 -sm3840 - |
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snapscan -sp15c -st400 -stv680 -tamarack -teco1 -teco2 -teco3 -test -u12 -umax |
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-umax1220u -umax_pp -xerox_mfp") |
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This scanner was able to be detected by the same user for many years now, |
| 19 |
without a problem. The user is a member of groups 'scanner' and 'plugdev', |
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but was NOT a member of group 'usb'. While troubleshooting I added the user |
| 21 |
to the 'usb' group, which allowed the scanner to be detected again, but I do |
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not understand why this sudden change in group ownership is now required. Any |
| 23 |
ideas? |
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