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Q: compiling sane aborts with error "virtual memory exhausted"
   on slackware linux with gcc. What goes wrong?

A: The optimization set by "-O2" makes problems, try which one of the following
   calls work:

   make CFLAGS="-g -Wall -O1"
   make CFLAGS="-g -Wall -O"
   make CFLAGS="-g -Wall"

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Q: Will there be a support for the UMAX-parallel-port-scanners?
Q: Will there be a support for the UMAX-USB-scanners?

A: UMAX published their SCSI-protocol for scanners. However they
   have not so far published parallel port and USB protocols. Without
   the protocol documentation I will not work on a driver.

   Martin Mevald <martinmv@penguin.cz> has worked on a parallel-port-driver
   but stopped the development.

   The Astra 2200W does work when connected via SCSI.
   It could work with SCSI-via-USB-driver and connected via USB, but that
   is not tested.

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Q: I get a black area at the top of the image. What's wrong?

A: This is a problem with some scsi-drivers.

   For advansys-scsi-cards update to a new kernel which includes at least
   the driver version 3.1E of the advansys-scsi-driver. Take a look at:
   http://www.advansys.com/linux.htm

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Q: I want to use the scsi-card that comes with my umax scanner.
   What card is it and is it supported by my os?

A: The cards that come with the umax scanners are very simple cards.
   I suggest not to use this cards.

   If you really want to try:
   the UDS-IS11 is a DTC3181E-card based on the NCR5380-chip.
   On linux you may have the chance to get it work with the recent
   g_NCR5380-driver. The card does not have IRQ/DMA.

   Try the following option for kernel:  dtc_3181e=0x280,255  
   or use the following command:

     insmod g_NCR5380 ncr_irq=255 ncr_addr=0x280 dtc_3181e=1

     - ncr_irq=255 : no IRQ, no DMA
     - ncr_irq=254 : autoprobe IRQ
     - ncr_addr    : can be: 0x220 0x240 0x280 0x2A0 0x2C0 0x300 0x320 0x340

   (Thanks to Colin Brough and Hans Schaefer for that tip)

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Q: I use linux with a NCR/Symbios logic SCSI-Controller, sane does not work
   right.

A: There are two differen drivers in the linux Kernel/modules.
   Use the BSD-driver (ncr53c8xx)!

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Q: Does SANE and the umax backend work on LinuxPPC / big endian machine ?

A: There are people using the sane-umax on a LinuxPPC (big endian) machine.

   Other people write that they can not scan on a LinuxPPC. It looks like this
   is a problem with the driver of the scsi card.

   The "MESH" SCSI card is reported to work. The NCR53C94 SCSI card
   seems not to work.

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Q: I am using an AM53C974 based scsi card with a umax scanner, the system
   freezes when I start a scan, what can I do?

A: Try the recent driver for the scsi card, take a look at:
   http://www.garloff.de/kurt/linux/dc390/index.html

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Q: Sane hangs or crashes when I start a frontend for sane, what can I do?

A: Sometimes the backends that are not used make problems.
   Edit /usr/(local)/etc/sane.d/dll.conf
   and comment out everything but the backend you need.

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You find a lot of tips and informations in the internet. E.g. take a look
at http://www.scantips.com


