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bug#57434: 28.1.91; Terminal Emacs Mac OS flickering.
From: |
Eli Zaretskii |
Subject: |
bug#57434: 28.1.91; Terminal Emacs Mac OS flickering. |
Date: |
Thu, 08 Sep 2022 12:16:07 +0300 |
> 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?
- bug#57434: 28.1.91; Terminal Emacs Mac OS flickering., (continued)
- bug#57434: 28.1.91; Terminal Emacs Mac OS flickering., Eli Zaretskii, 2022/09/03
- bug#57434: 28.1.91; Terminal Emacs Mac OS flickering., Gerd Möllmann, 2022/09/04
- bug#57434: 28.1.91; Terminal Emacs Mac OS flickering., Gerd Möllmann, 2022/09/07
- bug#57434: 28.1.91; Terminal Emacs Mac OS flickering., Dmitrii Kuragin, 2022/09/07
- bug#57434: 28.1.91; Terminal Emacs Mac OS flickering., Eli Zaretskii, 2022/09/07
- bug#57434: 28.1.91; Terminal Emacs Mac OS flickering., Gerd Möllmann, 2022/09/08
- bug#57434: 28.1.91; Terminal Emacs Mac OS flickering., Eli Zaretskii, 2022/09/08
- bug#57434: 28.1.91; Terminal Emacs Mac OS flickering., Gerd Möllmann, 2022/09/08
- bug#57434: 28.1.91; Terminal Emacs Mac OS flickering., Eli Zaretskii, 2022/09/08
- bug#57434: 28.1.91; Terminal Emacs Mac OS flickering., Gerd Möllmann, 2022/09/08
- bug#57434: 28.1.91; Terminal Emacs Mac OS flickering.,
Eli Zaretskii <=
- bug#57434: 28.1.91; Terminal Emacs Mac OS flickering., Gerd Möllmann, 2022/09/08
- bug#57434: 28.1.91; Terminal Emacs Mac OS flickering., Dmitrii Kuragin, 2022/09/08
- bug#57434: 28.1.91; Terminal Emacs Mac OS flickering., Dmitrii Kuragin, 2022/09/09
- bug#57434: 28.1.91; Terminal Emacs Mac OS flickering., Eli Zaretskii, 2022/09/09
- bug#57434: 28.1.91; Terminal Emacs Mac OS flickering., Dmitrii Kuragin, 2022/09/20
- bug#57434: 28.1.91; Terminal Emacs Mac OS flickering., Eli Zaretskii, 2022/09/20
- bug#57434: 28.1.91; Terminal Emacs Mac OS flickering., Gerd Möllmann, 2022/09/21
- bug#57434: 28.1.91; Terminal Emacs Mac OS flickering., Eli Zaretskii, 2022/09/21
bug#57434: 28.1.91; Terminal Emacs Mac OS flickering., Gerd Möllmann, 2022/09/02