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From: "Gerd Möllmann" <gerd.moellmann@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: kuragin@google.com, 57434@debbugs.gnu.org
Subject: bug#57434: 28.1.91; Terminal Emacs Mac OS flickering.
Date: Thu, 08 Sep 2022 08:43:46 +0200	[thread overview]
Message-ID: <m2r10m4b8d.fsf@Mini.fritz.box> (raw)
In-Reply-To: <83r10mfkn1.fsf@gnu.org> (Eli Zaretskii's message of "Thu, 08 Sep 2022 09:25:06 +0300")

Eli Zaretskii <eliz@gnu.org> writes:

> So you are saying at this point only my last alternative, i.e. a
> variable exposed to Lisp, is a reasonable way ahead?  Until, that is,
> those emulators get their act together and agree on some standard way
> of detecting the need for synchronized updates?

Yes, I think an option is currently all we can do.  And somehow define
what to send to the terminal, P1 or P2.

I installed iTerm2 just now, which implements P2 at least.  iTerm2 has a
preference options to switch GPU acceleration on/off.  iTerm2 uses
TERM=xterm256-color, independent of the GPU setting.  So matching TERM
wouldn't work with iTerm2.  The query control sequence of P2 seems to
return if GPU accel is on or off on iTerm2.

>
>> >> BTW, tmux uses the sync update for their own TUI and they check "Sync" terminal capability. Do we need to
>> >> do the same or we can just send the escapes and hope the unsupported terminal would just recover?
>> >
>> > What is that Sync capability, what is its value for tmux, and how is
>> > it supposed to be used?  Is there any documentation I could read about
>> > that?
>> 
>> I know Sync as an xterm extension, although I don't remember what it is
>> for.  It's a non-standard terminfo capability which is only shown with
>> infocmp -x.
>> 
>> Neither P1 nor P2 mention Sync in any way.
>
> Does terminfo return the Sync capability on those terminals, as it
> returns the standard ones?  That is, can we test for it inside
> init_tty?

I think so.

BTW, iTerm2 doesn't seem to define Sync.  Kitty does. It's a mess.






  reply	other threads:[~2022-09-08  6:43 UTC|newest]

Thread overview: 97+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-26 16:54 bug#57434: 28.1.91; Terminal Emacs Mac OS flickering Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-27  5:34 ` Gerd Möllmann
2022-08-27  5:41   ` Gerd Möllmann
2022-08-27 15:03     ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-27 15:46       ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-27 15:58         ` Eli Zaretskii
2022-08-27 16:01           ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-27 16:14             ` Eli Zaretskii
2022-08-29 14:18               ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-29 14:38                 ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-29 16:04                   ` Eli Zaretskii
2022-08-29 16:05                     ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-29 16:07                       ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-29 16:27                         ` Eli Zaretskii
2022-08-29 15:15                 ` Gerd Möllmann
2022-08-29 16:22                   ` Eli Zaretskii
2022-08-29 17:14                     ` Gerd Möllmann
2022-08-29 18:24                       ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-29 18:57                         ` Eli Zaretskii
2022-08-29 19:04                           ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-29 19:17                             ` Eli Zaretskii
2022-08-29 19:26                               ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-29 19:37                                 ` Eli Zaretskii
2022-08-29 20:25                                   ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-29 20:44                                     ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-29 21:08                                       ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-30 11:28                                         ` Eli Zaretskii
2022-08-30  6:09                                     ` Gerd Möllmann
2022-08-30 11:10                                       ` Eli Zaretskii
2022-08-30 11:23                                         ` Gerd Möllmann
2022-08-30 13:48                                           ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-30 16:19                                         ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-30 16:34                                           ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-30 17:00                                             ` Eli Zaretskii
2022-08-30 17:22                                               ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-30 11:11                                     ` Eli Zaretskii
2022-08-30  6:04                                   ` Gerd Möllmann
2022-08-30 11:46                                     ` Eli Zaretskii
2022-08-30 11:53                                       ` Gerd Möllmann
2022-08-30 12:07                                         ` Eli Zaretskii
2022-08-30 12:15                                           ` Gerd Möllmann
2022-08-30 12:48                                             ` Eli Zaretskii
2022-08-30 13:25                                     ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-30 13:48                                     ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-31  6:14                                       ` Gerd Möllmann
2022-08-31  6:14                                       ` Gerd Möllmann
2022-08-31  7:02                                         ` Gerd Möllmann
2022-08-31 11:09                                           ` Eli Zaretskii
2022-08-31 11:54                                             ` Gerd Möllmann
2022-08-31 14:12                                               ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-31 14:38                                                 ` Gerd Möllmann
2022-08-31 16:00                                                   ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-31 16:21                                                     ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-31 16:34                                                       ` Eli Zaretskii
2022-08-31 17:11                                                         ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-31 16:25                                                     ` Eli Zaretskii
2022-09-01  5:44                                                       ` Gerd Möllmann
2022-09-01  6:11                                                         ` Eli Zaretskii
2022-09-01  6:45                                                           ` Gerd Möllmann
2022-09-01  8:18                                                             ` Gerd Möllmann
2022-09-01  8:25                                                               ` Eli Zaretskii
2022-09-01  8:56                                                                 ` Gerd Möllmann
2022-09-01 11:30                                                                   ` Eli Zaretskii
2022-09-01 12:27                                                                     ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-09-01 12:32                                                                       ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-09-01 12:36                                                                         ` Gerd Möllmann
2022-09-02  7:16                                                         ` Eli Zaretskii
2022-09-02  7:26                                                           ` Eli Zaretskii
2022-09-02  9:21                                                             ` Gerd Möllmann
2022-09-03  8:04                                                               ` Gerd Möllmann
2022-09-03  9:06                                                                 ` Eli Zaretskii
2022-09-03 16:35                                                                   ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-09-03 16:51                                                                     ` Eli Zaretskii
2022-09-03 17:14                                                                       ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-09-03 17:21                                                                         ` Eli Zaretskii
2022-09-04  4:55                                                                         ` Gerd Möllmann
2022-09-07  4:59                                                                           ` Gerd Möllmann
2022-09-07 16:11                                                                             ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-09-07 18:17                                                                               ` Eli Zaretskii
2022-09-08  5:31                                                                                 ` Gerd Möllmann
2022-09-08  6:25                                                                                   ` Eli Zaretskii
2022-09-08  6:43                                                                                     ` Gerd Möllmann [this message]
2022-09-08  8:20                                                                                       ` Eli Zaretskii
2022-09-08  8:43                                                                                         ` Gerd Möllmann
2022-09-08  9:16                                                                                           ` Eli Zaretskii
2022-09-08  9:35                                                                                             ` Gerd Möllmann
2022-09-08 15:59                                                                                               ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-09-09 15:48                                                                                                 ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-09-09 16:00                                                                                                   ` Eli Zaretskii
2022-09-20 16:35                                                                                                     ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-09-20 16:45                                                                                                       ` Eli Zaretskii
2022-09-21  6:10                                                                                                         ` Gerd Möllmann
2022-09-21 11:17                                                                                                           ` Eli Zaretskii
2022-09-02  9:20                                                           ` Gerd Möllmann
2022-08-29 16:01                 ` Eli Zaretskii
2022-08-29 16:03                   ` Dmitrii Kuragin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-29 16:27                     ` Eli Zaretskii

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