Re: FVWM: Possible bug: Jumping pointer in Darktable

Hi,

is there any publicly accessible record of the mailing list?  The one [1]
linked to on FVWM's website [2] seems to not contain any messages
posted after 2018/05/18.  In particular, I'm missing a conversation
with Dan Espen wich occurred in early November 2018.  I'd like to send
a link to that conversation to the developers of Darktable [3] in
order to help fixing a bug [4].

Thank you!

Stefan

____________________
[1] https://www.mail-archive.com/[email protected]/maillist.html
[2] http://www.fvwm.org/support/
[3] https://www.darktable.org/
[4] https://redmine.darktable.org/issues/12387

Dan Espen (2018-Nov-06, excerpt):
> Stefan Klinger <[email protected]> writes:
> 
> > Hi,
> >
> > I'm using darktable [1], an open-source photography workflow
> > application and raw developer, basically a free Adobe Lr alternative.
> >
> > Recently I noticed a bug: Darktable allows to select areas
> > (aka. shapes) on a photograph, and apply operations only to those
> > areas instead of to the whole image.  Usually, one can drag these
> > shapes around with the mouse, holding down button 1.  The bug
> > manifests when pressing button 1 on a shape: It jumps away (southeast)
> > from the pointer, maybe even outside of the window.  It is not
> > possible to drag te shape to the top left area of the image.  The
> > effect is larger to the lower right of the screen.
> >
> > I've filed a bug report [2] in darktable's tracker, and also
> > *temporarily* provide screencasts [3].
> >
> > Pascal suggested that it's an issue with the window manager, which
> > would be FVWM on my machine.  He cannot reproduce on Gnome.  I've
> > tested the following:
> >
> >   * The bug disappears when using Openbox instead of FVWM, and also
> >     when not using any window manager at all (only X then).
> >
> >   * I have (among others) this binding in my FVWM config
> >
> >         mouse 1 A 4 moveOrRaise
> >
> >     Disabling this makes the bug disappear, reenabling it produces the
> >     bug again.  This is demonstrated in the 3rd video [4].
> >
> >   * I have not seen this with any other application, so mabe it's
> >     linked to a rather exotic/brand new feature not employed often by
> >     X clients.
> >
> > Can anyone reproduce this?
> > ____________________
> > [1] https://www.darktable.org/
> > [2] https://redmine.darktable.org/issues/12387
> > [3] https://depot.s5k6.net/B53pnjQAHxnTgvTw/
> > [4] https://depot.s5k6.net/B53pnjQAHxnTgvTw/03-change_mouse_binding_hi.mp4
> 
> Nope, no luck reproducing it.
> Looks to me like Fvwm thinks your mouse 1 button has the Mod 4 modifier
> active.
> 
> Have you done something to enable sticky modifier keys?
> 
> You might want run "xev" and press mouse 1.
> 
> -- 
> Dan Espen

-- 
http://stefan-klinger.de                                        o/X
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