Hi, > the 1250 is a "stupid" LM983x based scanner which knows nothing about > jpeg compression. The stop and go is a "feature" of the LM983x to avoid > data loss (of course you encounter this problem...)
So I tried again in windows and here the stop and go just appears with very high reslotions (600dpi) and very big pictures (horizontallly speaking). But the pauses are much shorter. Nevertheless I don't get these coloured lines in windows, so I think it is a bug of the plustek back-end... And yes, it is just a usb1 scanner. > I think that the libusb and or the usb-stack itself is the problem. I've > currently not testet here with 2.6 kernels. > Another thing is the image size you scan. Tests showed, that scanning > only small portions of a picture in 600dpi will work fine (of course - less > data), while scanning larger portions will not work very well, but full-size > scanning @300dpi should be no problem, at least with the plustek backend. Nope, even at 300 dpi I get those problems in Linux. As I said, I use plustek back-end with sane back-ends 1.0.14. > Can you switch back to 2.4 kernel? Not on my main machine, as it is bleeding edge, and glibc is compiled with NPTL, so a 2.4 would break stuff. I could try on another machine, but not today... Thanks for the quick responses. I will try how 2.4 reacts... Prakash
