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From: Eli Zaretskii <eliz@gnu.org>
To: "Gerd Möllmann" <gerd.moellmann@gmail.com>
Cc: kuragin@google.com, 57434@debbugs.gnu.org
Subject: bug#57434: 28.1.91; Terminal Emacs Mac OS flickering.
Date: Thu, 08 Sep 2022 12:16:07 +0300	[thread overview]
Message-ID: <83a67afcq0.fsf@gnu.org> (raw)
In-Reply-To: <m2o7vq45oa.fsf@Mini.fritz.box> (message from Gerd Möllmann on Thu, 08 Sep 2022 10:43:49 +0200)

> From: Gerd Möllmann <gerd.moellmann@gmail.com>
> Cc: kuragin@google.com,  57434@debbugs.gnu.org
> Date: Thu, 08 Sep 2022 10:43:49 +0200
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > What is P1 and what is P2?
> 
> The two proposals that we know of.
> 
> >
> >> 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.
> >
> > What is the "query control sequence"?
> 
> Proposal P2 defines 3 control sequences.  In addtion to begin/end, it
> contains a control sequence to determine the status of synchronized
> updates: on, off, permanently on, permanently off (AFAIU).

I guess by P1 you mean these two sequences:

  BSU: ESC P = 1 s ESC \
  ESU: ESC P = 2 s ESC \

whereas by P2 you mean these:

  DECRQM: ESC [ ? 2026 $ p
  DECRPM: ESC [ ? 2026 ; n $ y  (with n = 0..4, and 0 or 4 means "no support")
  BSU:    ESC [ ? 2026 h
  ESU:    ESC [ ? 2026 l

> > Do you happen to know where is the definitive documentation of Sync?
> 
> Sorry, I don't know a definitive documentation.

And any documentation at all?

Anyway, given the problems usually related to querying terminals about
potentially unsupported features, and the general mess in this field,
I think our best bet is to have a function that could switch the
frame-update hooks between these 3 states:

  . unused
  . used with P1 BSU/ESU sequences
  . used with P2 BSU/ESU sequences

WDYT?





  reply	other threads:[~2022-09-08  9:16 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
2022-09-08  8:20                                                                                       ` Eli Zaretskii
2022-09-08  8:43                                                                                         ` Gerd Möllmann
2022-09-08  9:16                                                                                           ` Eli Zaretskii [this message]
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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