Le Tuesday 10 June 2008 22:50:53 Werner Holtfreter, vous avez ?crit?: > Am Dienstag, 10. Juni 2008 21:09:58 schrieb stef: > > > Thanks, this works fine! The starting point at the top of page > > > varies only between 0,4...0,8. > > > > > > But --resolution 100 (I have short tested with others, but seen > > > only with 100) the old problem sometimes: The scanner head > > > starts to shake and does not move properly. Sometimes means > > > about 30 %. > > > > > > (Log comes direct to you.) > > > > I've inspected the log. The only difference I can see with a > > 'reference' run here is that the hack used to reset the AFE isn't > > trigger here. Since I believe this issues are related to > > powersaving, could check if your linux kernel has been built with > > CONFIG_USB_SUSPEND=y ? The config file used to build kernel is > > often stored in /boot. > > I configured my kernel without it. It may be the difference. > > Hello, > > /boot/config-2.6.22.17-0.1-default contains: > > . > . > . > # > # USB support > # > CONFIG_USB_ARCH_HAS_HCD=y > CONFIG_USB_ARCH_HAS_OHCI=y > CONFIG_USB_ARCH_HAS_EHCI=y > CONFIG_USB=m > # CONFIG_USB_DEBUG is not set > > # > # Miscellaneous USB options > # > CONFIG_USB_DEVICEFS=y > # CONFIG_USB_DEVICE_CLASS is not set > # CONFIG_USB_DYNAMIC_MINORS is not set > # CONFIG_USB_SUSPEND is not set <--------- > # CONFIG_USB_OTG is not set > . > . > . > > I'm not sure that it is, what you searching. I use: > Suse10.3 2.6.22.17-0.1-default > > By the way: I've seen the same problem (scanner head starts to > shake) on a Window-PC. (My scanner was earlier on a other PC.) > -- > Viele Gr??e > Werner Holtfreter
Hello, so this isn't a USB_SUSPEND issue. Could you try your scanner at 100 dpi gray scan on a windows PC ? If so, you can check that the scanner is working (ie no hardware issue), then record the USB communication with the usb sniffer available at http://www.pcausa.com/Utilities/UsbSnoop/default.htm . Then send me the log file of a 100 pdi scan so that I check that your scanner has really the same hardware than mine. Regards, Stef