> were you using front-mounted usb ports before? I have seen several
> cases where the extension cable inside the computer was of very low
> quality.
no it is connected to backside ports.
i had similar problem with usb on this computer under virtualbox, i have
stopped using it because i thought t
> On Wed, Apr 7, 2010 at 2:43 PM, viktor vraniak wrote:
> >
> >> then don't use gentoo. perhaps a livecd from something else?
> >>
> >
> > hmm, ok, i have tried it with ubuntu 9.10 live CD and it works! great ;o)
> >
> > so i have tried
>
> perhaps. is there anything else you can switch between the two
> computers, like cables or power? Or perhaps get an add-on usb card?
>
ok, i will try addon PCI card with USB ports, hope that this solve my problem.
anyway thank you very much for your patience and help
i will inform when i wi
> then don't use gentoo. perhaps a livecd from something else?
>
hmm, ok, i have tried it with ubuntu 9.10 live CD and it works! great ;o)
so i have tried run this live CD from computer where device is normally
connected and problem is back... :o(
so IMHO this looks like HW problem?
viktor
> This would imply that something the backend is doing at the end of a
> scan is confusing the scanner or kernel. Can you try this with a
> different computer, or older kernel version, or other USB cable or
> something? If none of those things help, then you would have to try
> and compare the pack
> > so i think, opened device is renewed and scanimage lost/not get descriptor
> > for
> new device?
>
> Yes- It appears that the device is reset (either by the kernel or by
> itself), after this attempted write. The reset succeeds, and so the
> device is found by the second call to scanimage.
>
>
debug output:
>
> SANE_DEBUG_SANEI_USB=255 SANE_DEBUG_HPLJM1005=255 scanimage 2>1.log
>
> then repeat with a different log file, and lets see if anything funny shows
> up.
>
> allan
>
> On Wed, Apr 7, 2010 at 11:53 AM, viktor vraniak wrote:
> > i forgot to wri
i forgot to write that i have disable CONFIG_USB_SUSPEND in my kernel too...
em,
> or why it has not been reported previously. Perhaps you can rebuild
> sane-backends with those two functions commented out from hpljm1005.c?
>
> allan
>
> 2010/4/7 viktor vraniak :
> > ok, thanks
> > here is kernel version:
> >
> > cz-gprinter admin #
-
> perhaps related to kernel usb suspend settings to save power? What
> kernel version is this? Perhaps you can try to disable power
> management for this device (use the 'on' setting):
>
> http://www.lesswatts.org/projects/devices-power-management/usb.php
>
> all
hi all
i have device HP LaserJet M1005 MFP, scanning is working with "hpljm1005"
backend.
but there is one issue: utility "scanimage" works only every second run
in kernel log i see:
[40719.182679] usb 1-5: default language 0x0409
[40719.183156] usb 1-5: udev 12, busnum 1, minor = 11
[40719.1831
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