GNU bug report logs - #74016
29.4; emacs-pgtk doesnt receive numpad events on wayland(sway)

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: joakim <at> verona.se
To: bug-gnu-emacs <at> gnu.org
Subject: 29.4; emacs-pgtk doesnt receive numpad events on wayland(sway)
Date: Fri, 25 Oct 2024 21:35:48 +0200

Emacs-pgtk doesnt seem to receive numpad events, instead number events
are received.

There was a thread about this on emacs-help:

https://lists.gnu.org/archive/html/help-gnu-emacs/2024-10/msg00094.html

I have attempted to summarize the thread here, wherein Stefan Monier
recomended I report this as a bug, and I also received knowledgeable
advice from several others.

Heres the bug:

I used to use a numpad to bind to do things in emacs.

This used to work really well on the i3wm window manager and a gtk emacs
build.

Then I bought a nice new framework laptop which has a hidpi screen, so I
switched to using the sway wm, and emacs-pgtk.

Now the numpad no longer sends keypad events in a way that emacs
recognizes, instead just plain numbers are received.

below is an example of the code I use, but normally I just test with c-h
k to see which key emacs receives.

I also tried xev, and there it seems I get kp events, at least under
xwayland I guess.

(define-key cider-mode-map (kbd "<kp-enter>") 'sylt-stop)
(define-key cider-mode-map (kbd "<kp-separator>") 'sylt-play-metro)

(defmacro sylt-song-event-map-key (key num)
  `(define-key cider-mode-map (kbd ,key)
               (lambda  () (interactive)   (cider-nrepl-sync-request:eval  
,(concat "(sylt.core/song-event \"" num "\")")))))



(sylt-song-event-map-key "<kp-0>" "init")
(sylt-song-event-map-key "<kp-1>" "1")


Instead of xev, I tried wev, and got this, which seems expected:

Using wev, installed from Fedora repos I get, for numpad 4, and normal 4:

[14:     wl_keyboard] key: serial: 60293; time: 61646320; key: 83; state: 0 
(released)
                      sym: KP_4         (65460), utf8: ''
[14:     wl_keyboard] key: serial: 60294; time: 61651642; key: 13; state: 1 
(pressed)
                      sym: 4            (52), utf8: '4'

That is, the numpad and the number pad sends distinct events that are
received by wev.

using (read-key) in emacs-pgtk, both the numpad and the number row are
received as the same event:

52 (#o64, #x34, ?4) [2 times]

I get the same in a emacs gtk session.

Maybe gtk is doing something weird?

so now I tried emacs-29.4-gtk+x11 -Q

and then I get "4 (translated from <kp-4>)"
on c-h k, numpad 4, so xwayland is doing something correctly in this
case, which pgtk isnt doing in the same way(imho incorrectly but what do
I know)

(and as a reminder, I run emacs-pgtk because it looks super nice on
wayland, with the scaling hints I use on my framework hidpi screen, but
emacs-29.4-gtk+x11 doesnt look good.)


/Joakim




In GNU Emacs 29.4 (build 1, x86_64-redhat-linux-gnu, GTK+ Version
 3.24.43, cairo version 1.18.0) of 2024-10-10 built on
 4825182c94fc4195b65c80c30f523a16
System Description: Fedora Linux 41 (Workstation Edition)

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 --with-gpm=no --with-harfbuzz --with-jpeg --with-json --with-modules
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Load-path shadows:
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-- 
Joakim Verona
joakim <at> verona.se

Message #8 received at 74016 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: joakim <at> verona.se, Po Lu <luangruo <at> yahoo.com>
Cc: 74016 <at> debbugs.gnu.org
Subject: Re: bug#74016: 29.4;
 emacs-pgtk doesnt receive numpad events on wayland(sway)
Date: Sat, 02 Nov 2024 13:29:18 +0200

> From: joakim <at> verona.se
> Date: Fri, 25 Oct 2024 21:35:48 +0200
> 
> 
> Emacs-pgtk doesnt seem to receive numpad events, instead number events
> are received.
> 
> There was a thread about this on emacs-help:
> 
> https://lists.gnu.org/archive/html/help-gnu-emacs/2024-10/msg00094.html
> 
> I have attempted to summarize the thread here, wherein Stefan Monier
> recomended I report this as a bug, and I also received knowledgeable
> advice from several others.
> 
> Heres the bug:
> 
> I used to use a numpad to bind to do things in emacs.
> 
> This used to work really well on the i3wm window manager and a gtk emacs
> build.
> 
> Then I bought a nice new framework laptop which has a hidpi screen, so I
> switched to using the sway wm, and emacs-pgtk.
> 
> Now the numpad no longer sends keypad events in a way that emacs
> recognizes, instead just plain numbers are received.
> 
> below is an example of the code I use, but normally I just test with c-h
> k to see which key emacs receives.
> 
> I also tried xev, and there it seems I get kp events, at least under
> xwayland I guess.
> 
> (define-key cider-mode-map (kbd "<kp-enter>") 'sylt-stop)
> (define-key cider-mode-map (kbd "<kp-separator>") 'sylt-play-metro)
> 
> (defmacro sylt-song-event-map-key (key num)
>   `(define-key cider-mode-map (kbd ,key)
>                (lambda  () (interactive)   (cider-nrepl-sync-request:eval  
> ,(concat "(sylt.core/song-event \"" num "\")")))))
> 
> 
> 
> (sylt-song-event-map-key "<kp-0>" "init")
> (sylt-song-event-map-key "<kp-1>" "1")
> 
> 
> Instead of xev, I tried wev, and got this, which seems expected:
> 
> Using wev, installed from Fedora repos I get, for numpad 4, and normal 4:
> 
> [14:     wl_keyboard] key: serial: 60293; time: 61646320; key: 83; state: 0 
> (released)
>                       sym: KP_4         (65460), utf8: ''
> [14:     wl_keyboard] key: serial: 60294; time: 61651642; key: 13; state: 1 
> (pressed)
>                       sym: 4            (52), utf8: '4'
> 
> That is, the numpad and the number pad sends distinct events that are
> received by wev.
> 
> using (read-key) in emacs-pgtk, both the numpad and the number row are
> received as the same event:
> 
> 52 (#o64, #x34, ?4) [2 times]
> 
> I get the same in a emacs gtk session.
> 
> Maybe gtk is doing something weird?
> 
> so now I tried emacs-29.4-gtk+x11 -Q
> 
> and then I get "4 (translated from <kp-4>)"
> on c-h k, numpad 4, so xwayland is doing something correctly in this
> case, which pgtk isnt doing in the same way(imho incorrectly but what do
> I know)
> 
> (and as a reminder, I run emacs-pgtk because it looks super nice on
> wayland, with the scaling hints I use on my framework hidpi screen, but
> emacs-29.4-gtk+x11 doesnt look good.)

Po Lu, is this another manifestation of problems with keyboard input
under PGTK?  If so, should we add something to etc/PROBLEMS?

Message #11 received at 74016 <at> debbugs.gnu.org (full text, mbox):

From: Po Lu <luangruo <at> yahoo.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 74016 <at> debbugs.gnu.org, joakim <at> verona.se
Subject: Re: bug#74016: 29.4; emacs-pgtk doesnt receive numpad events on
 wayland(sway)
Date: Sat, 02 Nov 2024 21:34:31 +0800

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

> Po Lu, is this another manifestation of problems with keyboard input
> under PGTK?  If so, should we add something to etc/PROBLEMS?

I'm not sure.  I will try to establish whether it is.

Message #14 received at 74016 <at> debbugs.gnu.org (full text, mbox):

From: joakim <at> verona.se
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: Po Lu <luangruo <at> yahoo.com>, 74016 <at> debbugs.gnu.org
Subject: Re: bug#74016: 29.4; emacs-pgtk doesnt receive numpad events on
 wayland(sway)
Date: Sun, 03 Nov 2024 10:02:42 +0100

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

>> From: joakim <at> verona.se
>> Date: Fri, 25 Oct 2024 21:35:48 +0200
>> 
>> 
>> Emacs-pgtk doesnt seem to receive numpad events, instead number events
>> are received.
>> 
>> There was a thread about this on emacs-help:
>> 
>> https://lists.gnu.org/archive/html/help-gnu-emacs/2024-10/msg00094.html
>> 
>> I have attempted to summarize the thread here, wherein Stefan Monier
>> recomended I report this as a bug, and I also received knowledgeable
>> advice from several others.
>> 
>> Heres the bug:
>> 
>> I used to use a numpad to bind to do things in emacs.
>> 
>> This used to work really well on the i3wm window manager and a gtk emacs
>> build.
>> 
>> Then I bought a nice new framework laptop which has a hidpi screen, so I
>> switched to using the sway wm, and emacs-pgtk.
>> 
>> Now the numpad no longer sends keypad events in a way that emacs
>> recognizes, instead just plain numbers are received.
>> 
>> below is an example of the code I use, but normally I just test with c-h
>> k to see which key emacs receives.
>> 
>> I also tried xev, and there it seems I get kp events, at least under
>> xwayland I guess.
>> 
>> (define-key cider-mode-map (kbd "<kp-enter>") 'sylt-stop)
>> (define-key cider-mode-map (kbd "<kp-separator>") 'sylt-play-metro)
>> 
>> (defmacro sylt-song-event-map-key (key num)
>>   `(define-key cider-mode-map (kbd ,key)
>>                (lambda  () (interactive)   (cider-nrepl-sync-request:eval  
>> ,(concat "(sylt.core/song-event \"" num "\")")))))
>> 
>> 
>> 
>> (sylt-song-event-map-key "<kp-0>" "init")
>> (sylt-song-event-map-key "<kp-1>" "1")
>> 
>> 
>> Instead of xev, I tried wev, and got this, which seems expected:
>> 
>> Using wev, installed from Fedora repos I get, for numpad 4, and normal 4:
>> 
>> [14:     wl_keyboard] key: serial: 60293; time: 61646320; key: 83; state: 0 
>> (released)
>>                       sym: KP_4         (65460), utf8: ''
>> [14:     wl_keyboard] key: serial: 60294; time: 61651642; key: 13; state: 1 
>> (pressed)
>>                       sym: 4            (52), utf8: '4'
>> 
>> That is, the numpad and the number pad sends distinct events that are
>> received by wev.
>> 
>> using (read-key) in emacs-pgtk, both the numpad and the number row are
>> received as the same event:
>> 
>> 52 (#o64, #x34, ?4) [2 times]
>> 
>> I get the same in a emacs gtk session.
>> 
>> Maybe gtk is doing something weird?
>> 
>> so now I tried emacs-29.4-gtk+x11 -Q
>> 
>> and then I get "4 (translated from <kp-4>)"
>> on c-h k, numpad 4, so xwayland is doing something correctly in this
>> case, which pgtk isnt doing in the same way(imho incorrectly but what do
>> I know)
>> 
>> (and as a reminder, I run emacs-pgtk because it looks super nice on
>> wayland, with the scaling hints I use on my framework hidpi screen, but
>> emacs-29.4-gtk+x11 doesnt look good.)
>
> Po Lu, is this another manifestation of problems with keyboard input
> under PGTK?  If so, should we add something to etc/PROBLEMS?

FYI I found a "workaround" to this problem. I now run Sway with scaling of
1 rather than 1.25.

Then I have to scale each application independently, so I set the
corresponding scale factor in sway window decorations, waybar, firefox
etc.

(the problem with this aproach is that a number of x11 apps cant be scaled)

Lastly in emacs I just scale the fonts and run emacs-gtk-x11. Now things
work adequately.

emacs-pgtk has other interesting features, but I guess they will have to
wait a while more.

Thanks everyone!

>
>
>
-- 
Joakim Verona
joakim <at> verona.se

Message #17 received at 74016 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Po Lu <luangruo <at> yahoo.com>
Cc: 74016 <at> debbugs.gnu.org, joakim <at> verona.se
Subject: Re: bug#74016: 29.4; emacs-pgtk doesnt receive numpad events on
 wayland(sway)
Date: Sat, 16 Nov 2024 15:45:58 +0200

> From: Po Lu <luangruo <at> yahoo.com>
> Cc: joakim <at> verona.se,  74016 <at> debbugs.gnu.org
> Date: Sat, 02 Nov 2024 21:34:31 +0800
> 
> Eli Zaretskii <eliz <at> gnu.org> writes:
> 
> > Po Lu, is this another manifestation of problems with keyboard input
> > under PGTK?  If so, should we add something to etc/PROBLEMS?
> 
> I'm not sure.  I will try to establish whether it is.

Any progress here?

Message #20 received at 74016 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: luangruo <at> yahoo.com
Cc: 74016 <at> debbugs.gnu.org, joakim <at> verona.se
Subject: Re: bug#74016: 29.4;
 emacs-pgtk doesnt receive numpad events on wayland(sway)
Date: Sat, 30 Nov 2024 11:53:35 +0200

Ping!

> Cc: 74016 <at> debbugs.gnu.org, joakim <at> verona.se
> Date: Sat, 16 Nov 2024 15:45:58 +0200
> From: Eli Zaretskii <eliz <at> gnu.org>
> 
> > From: Po Lu <luangruo <at> yahoo.com>
> > Cc: joakim <at> verona.se,  74016 <at> debbugs.gnu.org
> > Date: Sat, 02 Nov 2024 21:34:31 +0800
> > 
> > Eli Zaretskii <eliz <at> gnu.org> writes:
> > 
> > > Po Lu, is this another manifestation of problems with keyboard input
> > > under PGTK?  If so, should we add something to etc/PROBLEMS?
> > 
> > I'm not sure.  I will try to establish whether it is.
> 
> Any progress here?
> 
> 
> 
> 

Message #23 received at 74016 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: luangruo <at> yahoo.com
Cc: 74016 <at> debbugs.gnu.org, joakim <at> verona.se
Subject: Re: bug#74016: 29.4;
 emacs-pgtk doesnt receive numpad events on wayland(sway)
Date: Sat, 14 Dec 2024 11:35:08 +0200

Ping! Ping!

> Cc: 74016 <at> debbugs.gnu.org, joakim <at> verona.se
> Date: Sat, 30 Nov 2024 11:53:35 +0200
> From: Eli Zaretskii <eliz <at> gnu.org>
> 
> Ping!
> 
> > Cc: 74016 <at> debbugs.gnu.org, joakim <at> verona.se
> > Date: Sat, 16 Nov 2024 15:45:58 +0200
> > From: Eli Zaretskii <eliz <at> gnu.org>
> > 
> > > From: Po Lu <luangruo <at> yahoo.com>
> > > Cc: joakim <at> verona.se,  74016 <at> debbugs.gnu.org
> > > Date: Sat, 02 Nov 2024 21:34:31 +0800
> > > 
> > > Eli Zaretskii <eliz <at> gnu.org> writes:
> > > 
> > > > Po Lu, is this another manifestation of problems with keyboard input
> > > > under PGTK?  If so, should we add something to etc/PROBLEMS?
> > > 
> > > I'm not sure.  I will try to establish whether it is.
> > 
> > Any progress here?
> > 
> > 
> > 
> > 
> 
> 
> 
> 

Message #26 received at 74016 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: luangruo <at> yahoo.com
Cc: 74016 <at> debbugs.gnu.org, joakim <at> verona.se
Subject: Re: bug#74016: 29.4;
 emacs-pgtk doesnt receive numpad events on wayland(sway)
Date: Sat, 28 Dec 2024 13:10:31 +0200

Ping! Ping! Ping! Po Lu, please respond.

> Cc: 74016 <at> debbugs.gnu.org, joakim <at> verona.se
> Date: Sat, 14 Dec 2024 11:35:08 +0200
> From: Eli Zaretskii <eliz <at> gnu.org>
> 
> Ping! Ping!
> 
> > Cc: 74016 <at> debbugs.gnu.org, joakim <at> verona.se
> > Date: Sat, 30 Nov 2024 11:53:35 +0200
> > From: Eli Zaretskii <eliz <at> gnu.org>
> > 
> > Ping!
> > 
> > > Cc: 74016 <at> debbugs.gnu.org, joakim <at> verona.se
> > > Date: Sat, 16 Nov 2024 15:45:58 +0200
> > > From: Eli Zaretskii <eliz <at> gnu.org>
> > > 
> > > > From: Po Lu <luangruo <at> yahoo.com>
> > > > Cc: joakim <at> verona.se,  74016 <at> debbugs.gnu.org
> > > > Date: Sat, 02 Nov 2024 21:34:31 +0800
> > > > 
> > > > Eli Zaretskii <eliz <at> gnu.org> writes:
> > > > 
> > > > > Po Lu, is this another manifestation of problems with keyboard input
> > > > > under PGTK?  If so, should we add something to etc/PROBLEMS?
> > > > 
> > > > I'm not sure.  I will try to establish whether it is.
> > > 
> > > Any progress here?
> > > 
> > > 
> > > 
> > > 
> > 
> > 
> > 
> > 
> 
> 
> 
> 

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