GNU bug report logs - #5740
24.0.50; Gomoku display bug

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

From: Stephen Berman <stephen.berman <at> gmx.net>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.0.50; Gomoku display bug
Date: Fri, 19 Mar 2010 23:51:01 +0100

1. emacs -Q
2. M-x gomoku
3. Play until the game is won, then press RET, which clears the board.
=> The positions occupied at the end of the just cleared board display a
residue of the characters -- a thin red line from the right side of the
`O' and two green dots from the right side of the `X'.  Typing C-l
eliminates the residue.

This is with the default font on my system:
xft:-monotype-Andale Mono-normal-normal-normal-*-12-*-*-*-m-0-iso10646-1
Normally I use this font:
xft:-unknown-DejaVu Sans Mono-bold-normal-normal-*-12-*-*-*-m-0-iso10646-1
and with this the above bleeding does not occur (with the Andale Mono
font I can see that the Gomoku `O' and `X' characters are slightly wider
than the block cursor, while with DejaVu Sans Mono they are just as wide
as the cursor).

In GNU Emacs 24.0.50.1 (i686-pc-linux-gnu, GTK+ Version 2.18.6)
 of 2010-03-19 on escher
Windowing system distributor `The X.Org Foundation', version 11.0.10605000
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: @im=local
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Message #10 received at 5740 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Kangas <stefan <at> marxist.se>
To: Stephen Berman <stephen.berman <at> gmx.net>
Cc: 5740 <at> debbugs.gnu.org
Subject: Re: bug#5740: 24.0.50; Gomoku display bug
Date: Tue, 1 Oct 2019 03:29:32 +0200

Stephen Berman <stephen.berman <at> gmx.net> writes:

> 1. emacs -Q
> 2. M-x gomoku
> 3. Play until the game is won, then press RET, which clears the board.
> => The positions occupied at the end of the just cleared board display a
> residue of the characters -- a thin red line from the right side of the
> `O' and two green dots from the right side of the `X'.  Typing C-l
> eliminates the residue.
>
> This is with the default font on my system:
> xft:-monotype-Andale Mono-normal-normal-normal-*-12-*-*-*-m-0-iso10646-1
> Normally I use this font:
> xft:-unknown-DejaVu Sans Mono-bold-normal-normal-*-12-*-*-*-m-0-iso10646-1
> and with this the above bleeding does not occur (with the Andale Mono
> font I can see that the Gomoku `O' and `X' characters are slightly wider
> than the block cursor, while with DejaVu Sans Mono they are just as wide
> as the cursor).

This is an old bug report from 9 years ago, that unfortunately didn't
get an answer at the time.

I'm unable to reproduce this on Emacs 26.1.  Are you still seeing this
on a more modern version of Emacs?

Best regards,
Stefan Kangas

Message #15 received at 5740-done <at> debbugs.gnu.org (full text, mbox):

From: Stephen Berman <stephen.berman <at> gmx.net>
To: Stefan Kangas <stefan <at> marxist.se>
Cc: 5740-done <at> debbugs.gnu.org
Subject: Re: bug#5740: 24.0.50; Gomoku display bug
Date: Sun, 20 Oct 2019 15:49:24 +0200

On Tue, 1 Oct 2019 03:29:32 +0200 Stefan Kangas <stefan <at> marxist.se> wrote:

> Stephen Berman <stephen.berman <at> gmx.net> writes:
>
>> 1. emacs -Q
>> 2. M-x gomoku
>> 3. Play until the game is won, then press RET, which clears the board.
>> => The positions occupied at the end of the just cleared board display a
>> residue of the characters -- a thin red line from the right side of the
>> `O' and two green dots from the right side of the `X'.  Typing C-l
>> eliminates the residue.
>>
>> This is with the default font on my system:
>> xft:-monotype-Andale Mono-normal-normal-normal-*-12-*-*-*-m-0-iso10646-1
>> Normally I use this font:
>> xft:-unknown-DejaVu Sans Mono-bold-normal-normal-*-12-*-*-*-m-0-iso10646-1
>> and with this the above bleeding does not occur (with the Andale Mono
>> font I can see that the Gomoku `O' and `X' characters are slightly wider
>> than the block cursor, while with DejaVu Sans Mono they are just as wide
>> as the cursor).
>
> This is an old bug report from 9 years ago, that unfortunately didn't
> get an answer at the time.
>
> I'm unable to reproduce this on Emacs 26.1.  Are you still seeing this
> on a more modern version of Emacs?

(Sorry for the late reply, I was travelling when you posted and
overlooked it when I got back.)  Thanks for the reminder.  I don't
currently have access to a system with this font installed and haven't
made the effort to install it, but I have tried several other monospace
fonts and cannot reproduce the issue either, so I suppose it's no longer
a problem and am therefore closing this bug.

Steve Berman

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