Discussion:
XSANE
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Ron Anstis
2017-01-18 04:45:24 UTC
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Dear Alioth,
I have been trying for six hours to get XSANE to
work with my Canon MP 970 printer. The programme installed and runs
normally, it recognises the printer, but when I ask for a preview,
nothing happens. The software does not freeze - the preview can be
cancelled, and all the rest of the programme still works - but no
scanned image appears, despite a five minute wait before cancellation.
Simple scan and scan2pdf both work, but neither are as
sophisticated as XSANE, nor have the features I want.
I have visited
"file:///usr/share/sane/xsane/doc/sane-problems-doc.html", and, although
my specific problem is not mentioned, I have run through most of the
remotely applicable suggestions without success. The back end is there,
SANE is there, the scanner shows up correctly in Terminal and I have
commented out all back ends except those for Canon and Pixma in
sane.d/dll.conf. I tried "$find / -name "*sane*" | less" as root, but
nothing appeared except a blinking cursor, despite me waiting ten
minutes or so.
Desktop PC AMD quad-core 3.6 GHz processor, 16 GB RAM 2 GB GE-Force
graphics, multiboot system with Linux Mint Sarah, Win 7 and Win XP
Does anyone have any ideas??

Ron Anstis.
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Ron Anstis
2017-01-18 05:09:39 UTC
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Raw Message
Dear Alioth,
I have been trying for six hours to get XSANE to
work with my Canon MP 970 printer. The programme installed and runs
normally, it recognises the printer, but when I ask for a preview,
nothing happens. The software does not freeze - the preview can be
cancelled, and all the rest of the programme still works - but no
scanned image appears, despite a five minute wait before cancellation.
Simple scan and scan2pdf both work, but neither are as
sophisticated as XSANE, nor have the features I want.
I have visited
"file:///usr/share/sane/xsane/doc/sane-problems-doc.html", and, although
my specific problem is not mentioned, I have run through most of the
remotely applicable suggestions without success. The back end is there,
SANE is there, the scanner shows up correctly in Terminal and I have
commented out all back ends except those for Canon and Pixma in
sane.d/dll.conf. I tried "$find / -name "*sane*" | less" as root, but
nothing appeared except a blinking cursor, despite me waiting ten
minutes or so.
Desktop PC AMD quad-core 3.6 GHz processor, 16 GB RAM 2 GB GE-Force
graphics, multiboot system with Linux Mint Sarah, Win 7 and Win XP
Does anyone have any ideas??

Ron Anstis.

Postscript - After writing this, I tried gdb xscanimage
r <enter>
after the frontend returned:
backtrace <enter>

for the third time, with the the following result:

(gdb) r
Starting program: /usr/bin/xscanimage
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffedbd0700 (LWP 12241)]
[New Thread 0x7fffec331700 (LWP 12242)]
[New Thread 0x7fffe0ff0700 (LWP 12244)]
[Thread 0x7fffe0ff0700 (LWP 12244) exited]
backtrace
[New Thread 0x7fffe0ff0700 (LWP 12246)]
[New Thread 0x7fffdbfff700 (LWP 12247)]
[Thread 0x7fffec331700 (LWP 12242) exited]
[Thread 0x7ffff7fb8980 (LWP 12237) exited]
[Thread 0x7fffdbfff700 (LWP 12247) exited]
[Thread 0x7fffe0ff0700 (LWP 12246) exited]
[Inferior 1 (process 12237) exited normally]
(gdb) backtrace
No stack.

Before I ran the command "backtrace", there was a limited GUI front end
returned, and I successfully obtained a preview, and was able to do a
scan, and save it. Weird??
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