bug#811: 23.0.60; emacsclient -t inserts one char when pressing an arrow key

bug#811: 23.0.60; emacsclient -t inserts one char when pressing an arrow key

[Tassilo Horn]

Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the emacs-pretest-bug@gnu.org mailing list.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

1. Start emacs -Q
2. eval (server-start)
3. from a terminal, invoke emacsclient -t some-file
4. Press <left>, <right>, <up> or <down>

The first keypress of an arrow key after the emacsclient invokation
inserts one D, C, A or B.  The next press moves point as expected.  With
emacsclient -c this does not happen.

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/usr/share/emacs/23.0.60/etc/DEBUG for instructions.


In GNU Emacs 23.0.60.1 (x86_64-pc-linux-gnu, GTK+ Version 2.12.11)
 of 2008-08-26 on thinkpad
Windowing system distributor `The X.Org Foundation', version 11.0.10402000
configured using `configure  '--prefix=/usr' '--host=x86_64-pc-linux-gnu' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--datadir=/usr/share' '--sysconfdir=/etc' '--localstatedir=/var/lib' '--libdir=/usr/lib64' '--program-suffix=-emacs-23' '--infodir=/usr/share/info/emacs-23' '--with-sound' '--with-x' '--with-toolkit-scroll-bars' '--with-gif' '--with-jpeg' '--with-png' '--with-rsvg' '--with-tiff' '--with-xpm' '--with-freetype' '--with-xft' '--with-libotf' '--with-m17n-flt' '--with-x-toolkit=gtk' '--without-hesiod' '--with-kerberos' '--with-kerberos5' '--with-gpm' '--with-dbus' '--build=x86_64-pc-linux-gnu' 'build_alias=x86_64-pc-linux-gnu' 'host_alias=x86_64-pc-linux-gnu' 'CFLAGS=-mtune=core2 -O2 -pipe' 'LDFLAGS=-Wl,-O1 -Wl,--as-needed''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Group

Minor modes in effect:
  gnus-topic-mode: t
  gnus-undo-mode: t
  yas/minor-mode: t
  shell-dirtrack-mode: t
  recentf-mode: t
  window-number-meta-mode: t
  window-number-mode: t
  savehist-mode: t
  exec-abbrev-cmd-mode: t
  show-paren-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<escape> q C-c g <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <down> <down> <up> <return> 
<return> F C-k C-k C-k H i SPC R a l f , <return> <down> 
M-q <down> <down> <down> <down> <down> M-q <down> <up> 
<down> <down> <return> Y e p <backspace> s , SPC t 
h a t SPC w o r k s . SPC SPC T h a n k s SPC a SPC 
l o t ! <return> <return> b <tab> C-k C-k C-k C-k C-k 
C-k C-k C-k C-k C-k C-k C-k C-k C-k C-c C-c c <return> 
SPC <return> <return> <return> <return> <return> <return> 
<return> <return> <return> <return> <return> <return> 
<return> <return> <return> <return> <return> <return> 
<return> <return> <return> <return> <return> <return> 
<return> <return> <return> <return> <return> SPC <return> 
<return> <return> <return> <return> <return> <return> 
<return> <return> <return> <return> <return> <return> 
<return> <return> <return> <return> <return> <return> 
<return> <return> <return> <return> <return> <return> 
<return> <return> SPC <return> <return> <return> <return> 
<return> <return> <return> <return> <return> <return> 
<return> <return> <return> <return> <return> <return> 
SPC <return> <return> <return> <return> <return> <return> 
<return> <return> <return> <return> <return> <return> 
<return> <return> <return> SPC c <return> c <return> 
SPC SPC <backspace> SPC SPC <return> <return> <return> 
<return> <return> <return> <return> <return> <return> 
<return> <return> <return> <return> <return> <return> 
<return> <return> <return> SPC <return> <return> <return> 
<return> <return> <return> <return> <return> <return> 
<return> <return> <return> <return> <return> <return> 
<return> <return> <return> <return> <return> <return> 
<return> <return> SPC SPC SPC SPC SPC <return> <return> 
<return> <return> <return> <return> <return> <return> 
SPC SPC <down> <down> <down> <down> c <down> <down> 
<down> <down> <down> <down> <down> <down> <return> 
1 <return> <return> q <return> SPC c <return> SPC SPC 
SPC SPC <down> <return> <down> <return> c <help-echo> 
M-x r e b <return> <right> <return>

Recent messages:
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-- 
Richard Stallman  doesn't use web  browsers. Emacs connects  directly to
the network driver and he reads and writes TCP/IP himself.

bug#811: 23.0.60; emacsclient -t inserts one char when pressing an arrow key

[Chong Yidong]

> 1. Start emacs -Q
> 2. eval (server-start)
> 3. from a terminal, invoke emacsclient -t some-file
> 4. Press <left>, <right>, <up> or <down>
>
> The first keypress of an arrow key after the emacsclient invokation
> inserts one D, C, A or B.  The next press moves point as expected.  With
> emacsclient -c this does not happen.

Thanks.  I can reproduce this too.  Do you know whether or not this
problem only appeared recently?

bug#811: 23.0.60; emacsclient -t inserts one char when pressing an arrow key

[Tassilo Horn]

Chong Yidong <cyd@stupidchicken.com> writes:

Hi!

>> 1. Start emacs -Q
>> 2. eval (server-start)
>> 3. from a terminal, invoke emacsclient -t some-file
>> 4. Press <left>, <right>, <up> or <down>
>>
>> The first keypress of an arrow key after the emacsclient invokation
>> inserts one D, C, A or B.  The next press moves point as expected.
>> With emacsclient -c this does not happen.
>
> Thanks.  I can reproduce this too.  Do you know whether or not this
> problem only appeared recently?

No, sorry.  Normally I use emacsclient -c all the time.  But since
nobody has reported it before, I'd say the problematic change shouldn't
be too old.

Bye,
Tassilo
-- 
Richard Stallman can coerce meaningful data from /dev/null.

bug#811: 23.0.60; emacsclient -t inserts one char when pressing an arrow key

[Chong Yidong]

Anyone have any idea what causes this bug?  I noticed that if you switch
to the X frame, then switch back to the terminal frame, the first arrow
key you enter into the terminal then behaves correctly.  Very strange.

> 1. Start emacs -Q
> 2. eval (server-start)
> 3. from a terminal, invoke emacsclient -t some-file
> 4. Press <left>, <right>, <up> or <down>
>
> The first keypress of an arrow key after the emacsclient invokation
> inserts one D, C, A or B.  The next press moves point as expected.  With
> emacsclient -c this does not happen.