Le 2020-10-05 22:45, Alexander Pevzner a écrit :
On 10/5/20 10:44 PM, Thierry HUCHARD wrote:
Please notice, sane-escl has got a SIGSEGV. Though ippusbxd doesn't
work very well, it cannot be a reason for SIGSEGV in the sane-escl.
Thank you Alexander,
to know if the problem comes from escl or ippusbxd, it would have been
interesting to test with ipp-usb.
ippusbxd is the external program, sane-escl communicates with it over
network. So even if it works wrong, for sane-escl it is a kind of
invalid response from scanner. It should raise an error, not the
crash. Scanner also can send invalid response.
I think that Yoann's installation is corrupted, the TS8300 is
referenced in PIXMA since version 1.0.30 and despite that it is not
detected!
Running IPP-over-USB daemon may prevent sane-pixma backend from access
to the USB device.
But in general I think that if some device provides both proprietary
and "driverless" way of scanning/printing, driverless should be
preferred. So although for some particular user disabling IPP-over-USB
may work as a "hotfix", from community perspective this is better to
investigate IPP-over-USB issues rather that to disable it when it
doesn't work.
You know it I am not of this opinion, the PIXMA pilot is free and much
more complete than the ESCL/AIRSCAN pilot.
