From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Philipp Stephani
Philipp Stephani <p.s= tephani2@gmail.com> schrieb am Fr., 9. Sep. 2016 um 18:20=C2=A0Uhr:<= br class=3D"gmail_msg">Eli Zaretskii <eliz@gnu.org> schrieb am= Fr., 9. Sep. 2016 um 18:07=C2=A0Uhr:> From: Philipp Stephani <p.step= hani2@gmail.com>
> Date: Fri, 09 Sep 2016 15:59:02 +0000
> Cc: 24372@debbugs.gnu.org
>
> Eli Zaretskii <eliz@gnu.org> schrieb am Di., 6. Sep. 2016 um 18:0= 3 Uhr:
>
>=C2=A0 > From: Philipp Stephani <p.stephani2@gmail.com>= ;
>=C2=A0 > Date: Mon, 05 Sep 2016 21:16:40 +0200
>=C2=A0 >
>=C2=A0 > emacs -Q -eval '(setq blink-cursor-delay 0.0)'
>=C2=A0 >
>=C2=A0 > Move point around in the scratch buffer (e.g. press C-b a c= ouple of
>=C2=A0 > times): the cursor stays visible, as it should be. Then put= the mouse
>=C2=A0 > focus on a different GTK window (not Emacs window), put the= mouse focus
>=C2=A0 > back on Emacs, and move point again: the cursor is hidden, = making it
>=C2=A0 > impossible to see until you stop moving.
>
>=C2=A0 Does it happen even if you wait with cursor motion until after t= he
>=C2=A0 cursor blinks one time, i.e. if you start moving point with the = cursor
>=C2=A0 already visible after Emacs gets focus?
>
> Yes. No matter what state the cursor is in and how often it has alread= y blinked, it becomes invisible when
> moving.
So what is the importance of moving focus out of the Emacs frame and
then back into it?=C2=A0 Is the problem reproducible without that?=C2=A0 Or= are
you saying that focus-out followed by focus-in event somehow changes
the behavior wrt displaying the cursor?Yes. The cursor only become invisible after a focus-out/fo= cus-in event.This isn't surprising given= that blink-cursor-mode changes focus-in-hook and focus-out-hook. Probably = the bug is hidden somewhere in the complex interaction between the various = blink-cursor timers and hooks.=C2=A0A simpler recipe that doesn't need explicit focus events isemacs -Q -eval '(progn (setq blink-cursor-delay 0.0) (blink-curs= or-suspend) (blink-cursor-check))'=C2=A0=and then start movin= g point.