...now it's working again. :-) The long version:
The parallel port mode probably was the main problem: when I just load the parport_pc module without parameters (which seems to work fine), the scanner detection fails when I'm trying to load the respective kernel module for my scanner (plustek_pp), as described in my previous eMail. But detection works when I load parport_pc like this: modprobe parport_pc irq=7 io=0x378 Or automatically by adding the following lines to /etc/modutils/scanner and performing an "update-modules": options parport_pc irq=7 io=0x378 Now the next big problem, aside from the known incompatibility between different driver and backend versions (which really annoyed me, because I tried to revert to the last working backend/module), was that apparently the "direct" mode in the latest SANE did not work for my scanner (distorded previews, black scans) and I did not even know SANE was using the direct mode instead of the module - my configuration file /etc/sane.d/plustek_pp was not honoured. That was because the beforementioned incompatibility problem forced me to "recompile SANE AND the driver" (Plustek-PARPORT.txt in the SANE documentation), instead of using sane binaries from my distribution, so the configuration files SANE reads now are in /usr/local/etc/... All this was not easy to figure out, but I still thing the SANE programmers have made a good job. Thanks to all of you! Vlado
