xsane usb problem
A binary scan works, a color scan stalls the scanner.
A posting to sane-devel on 1/6/07 drew no responses.
The backend maintainer pointed out that "If the USB system stalls, the
scanner can not get rid of it's data". I tried scanimage -B to increase
the buffer size but this did not help. Actually, after reinstalling
xsane and libsane I was able to complete one color scan but the second
one stalled.
The xsane maintainer responded I am sorry but I can not help you because
I do not know much about the USB things.
The system is Debian testing with a 2.6.16 kernel. The scanner is an
Epson Perfection 2400 which is recognized as a usb2 device. It has
worked flawlessly with xsane for the past several years. Recently I did
several apt-get updates and apt-get dist-upgrades. It is after these
upgrades that I have encountered the problem.
I have confirmed that the hard drive is using dma and 32 bit i/o. There
is 775 Mb memory and all the partitions have at least 2 Gb of free space.
I would appreciate any suggestions of where to look next.
Tom George
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