GNU bug report logs - #30994
27.0.50; Cursor doesn't blink (X window system)

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Michael Heerdegen <michael_heerdegen <at> web.de>
Subject: bug#30994: closed (Re: bug#30994: 27.0.50; Cursor doesn't blink
 (X window system))
Date: Sun, 23 Aug 2020 12:00:03 +0000

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Your bug report

#30994: 27.0.50; Cursor doesn't blink (X window system)

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 30994 <at> debbugs.gnu.org.

-- 
30994: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=30994
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Stefan Kangas <stefan <at> marxist.se>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: michael_heerdegen <at> web.de, 30994-done <at> debbugs.gnu.org
Subject: Re: bug#30994: 27.0.50; Cursor doesn't blink (X window system)
Date: Sun, 23 Aug 2020 07:59:29 -0400

Eli Zaretskii <eliz <at> gnu.org> writes:

> I don't think so, but we should probably close this bug anyway, and
> leave the rest for another day/bug.

Thanks, I'm therefore closing this bug report.

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From: Michael Heerdegen <michael_heerdegen <at> web.de>
To: bug-gnu-emacs <at> gnu.org
Subject: 27.0.50; Cursor doesn't blink (X window system)
Date: Fri, 30 Mar 2018 05:31:20 +0200

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Hello,

I start emacs -Q (under openbox in X on Debian if it matters), and I get
an Emacs where the cursor doesn't blink.  Thankfully only on master but
not with an emacs-26 build.

The problem is simply that `blink-cursor-mode' is not turned on when
starting, but I can successfully enable it.

The reason is that at the moment the :init-value expression of
`blink-cursor-mode' is evaluated, `window-system' is bound to nil,
i.e. when installing the following:

[0001-WIP-test-no-blinking-cursor.patch (text/x-diff, inline)]

From befd2667396125748d6e9e0e15c5fc38f7846082 Mon Sep 17 00:00:00 2001
From: Michael Heerdegen <michael_heerdegen <at> web.de>
Date: Fri, 30 Mar 2018 04:25:00 +0200
Subject: [PATCH] WIP: test no-blinking-cursor

---
 lisp/frame.el | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/lisp/frame.el b/lisp/frame.el
index fbf2f6e773..b07e2800ba 100644
--- a/lisp/frame.el
+++ b/lisp/frame.el
@@ -2357,10 +2357,12 @@ blink-cursor-mode
 
 This command is effective only on graphical frames.  On text-only
 terminals, cursor blinking is controlled by the terminal."
-  :init-value (not (or noninteractive
-		       no-blinking-cursor
-		       (eq system-type 'ms-dos)
-		       (not (memq window-system '(x w32 ns)))))
+  :init-value (progn
+                (message "window-system: %S" window-system)
+                (not (or noninteractive
+		         no-blinking-cursor
+		         (eq system-type 'ms-dos)
+                         (not (memq window-system '(x w32 ns))))))
   :initialize 'custom-initialize-delay
   :group 'cursor
   :global t
-- 
2.16.2

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I get a *Messages* buffer like

| window-system: nil
| For information about GNU Emacs and the GNU system, type C-h C-a.

After starting up,

window-system
   ==> x

as expected.


Thanks,

Michael.


In GNU Emacs 27.0.50 (build 5, x86_64-pc-linux-gnu, GTK+ Version 3.22.29)
 of 2018-03-30 built on drachen
Repository revision: befd2667396125748d6e9e0e15c5fc38f7846082
Windowing system distributor 'The X.Org Foundation', version 11.0.11906000
System Description: Debian GNU/Linux buster/sid

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