[sane-devel] scanbd occasionally ignores scanner button presses
knizek.confy at gmail.com
Sat May 17 15:35:01 UTC 2014
Wilhelm píše v Pá 16. 05. 2014 v 14:08 +0200:
> Hi Milan,
> Am 16.05.2014 09:38, schrieb Milan Knížek:
> > I have yet to confirm it by further testing, but it seems that I can
> > trigger the "stale" status of the scanbd by repeatedly pressing the
> > scanner button (e.g. the PDF merge button, which does not really scan
> > anything) in a quick sequence.
Well, it seems I can reproduce it reliably by repeatedly pressing a
button on my CanoScan 9000F before the child (action) process exits. I
do not have access to another scanner to test if this is a common
behaviour or not.
> > Is there any SIGNAL I could send to scanbd process to refresh itself
> > without the need to restart scanbd.service?
> Try to send SIGUSR1 to stop all polling and then SIGUSR2 to restart all
The signals were caught by the process and it responded as described,
however, it did not resolve the bug.
I will report this behaviour in the Discussion forum of
Sourceforge.net / scanbd so that it does not get lost.
More information about the sane-devel