Subject: 25.0.90; Background colour is not displayed on some lines after end of text

From: [email-masked] (N. Jackson)
Date: Wed, 03 Feb 2016 14:27:48 -0400

When reading mail/news in Gnus, HTML messages sometimes have patches
of missing background colour. That is, there are patches where the
window background colour shows through. This problem is not apparent
in Emacs 24.

The problem does not seem to happen where there is text in the
foreground. Rather, the HTML background colour is missing on some
lines after the text ends, from the end of the text to the right
edge of the window (or block). [This is with left-to-right text.]

The attachment example-1_Emacs-25.png shows an example of this
problem. (The window background colour is black and the HTML is
painting a grey background colour.) The attachment
example-1_Emacs-24.png shows the same message correctly displayed in
Emacs 24.5.

The attachment example-2_Emacs-25.png shows another example of the
problem, while the attachment example-2_Emacs-24.png shows the same
message correctly displayed in Emacs 24.5.

Note: I have shr-use-fonts set to nil, and this seems to make the
problem worse (than with shr-use-fonts non-nil). But the problem
still occurs sometimes with non-nil shr-use-fonts. The attachment
example-2-b_Emacs-25.png shows the problem with non-nil
shr-use-fonts.

FWIW, I attach the two example messages in raw form, in case they
should be useful for reproducing the problem.

In GNU Emacs 25.0.90.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.18.7)
 of 2016-01-31 built on moondust
Windowing system distributor 'Fedora Project', version 11.0.11800000
System Description:	Fedora release 23 (Twenty Three)

Configured using:
 'configure --prefix=/home/nlj/local/ --enable-checking=yes,glyphs
 'CFLAGS=-O0 -g3 -ggdb''

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND DBUS GCONF GSETTINGS NOTIFY
ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11

Important settings:
  value of $LC_MONETARY: en_DK.utf8
  value of $LC_NUMERIC: en_DK.utf8
  value of $LC_TIME: en_DK.utf8
  value of $LANG: en_CA.UTF-8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: Text

Minor modes in effect:
  flyspell-mode: t
  recentf-mode: t
  display-battery-mode: t
  display-time-mode: t
  save-place-mode: t
  delete-selection-mode: t
  show-paren-mode: t
  savehist-mode: t
  electric-pair-mode: t
  desktop-save-mode: t
  cua-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-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
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  size-indication-mode: t
  column-number-mode: t
  line-number-mode: t
  global-visual-line-mode: t
  visual-line-mode: t
  transient-mark-mode: t

Recent messages:
Read-Only mode enabled in current buffer
funcall-interactively: Buffer is read-only: #<buffer bug-reports.txt> [2 times]
Quit
Read-Only mode disabled in current buffer
You can run the command ‘read-only-mode’ with C-x C-q
Read-Only mode disabled in current buffer
next-line: End of buffer [2 times]
Mark set [4 times]
Auto-saving...done
Auto-saving...done

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To: <[email-masked]>
From: "[email-masked] [ham-antennas]" <[email-masked]>
Sender: [email-masked]
Mailing-List: list [email-masked]; contact [email-masked]
Date: 12 Dec 2015 06:58:36 -0800
Subject: [ham-antennas] Re: Extended double Zepp - calculate stub length how?
Reply-To: [email-masked]

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      <p>My extended double zepp is single-purpose, to facilitate comms with my friend Father John HH6JH when the beam is otherwise occupied.&nbsp; For that I have it oriented to favor north and south and it works amazingly well for only being up about 15 feet.<br><br>I modeled it in EZNEC and cut the element and stub lengths more or less to the model, lengths 44.75 ft per side then trimmed for best SWR, and stub length 8.25 ft of 600-ohm ladder line.&nbsp; I can feed it with a random length of coax thru a 1:1 choke and it seems to work just fine.<br><br>SWR is 1.1:1 at 14.194, 1.5:1 at 14.0, and 1.7:1 at 14.35, which is better than the model said it would be.<br><br>Was hoping to get it up to 40 feet this year but now it looks like that&#39;s not going to happen until spring, meanwhile it&#39;s doing its job at 15 feet and I don&#39;t seem to have to pay attention to specific coax lengths..<br><br>Rick WA1RKT</p>

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--9nlWnTS9ocNmxdhsK3FKVLWiM6a5jwOaA8HvrLV--
To: "[email-masked]" <[email-masked]>
From: "David Coombs [email-masked] [ham-antennas]" <[email-masked]>
Sender: [email-masked]
Mailing-List: list [email-masked]; contact [email-masked]
Date: Thu, 17 Dec 2015 20:19:43 +0000 (UTC)
Subject: Re: [ham-antennas] Re: Extended double Zepp - calculate stub length
 how?
Reply-To: [email-masked]

------=_Part_331999_1687795830.1450383583712
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

It would be nice if I could get the software to run on my Windows 7=C2=A0
David [email-masked]

=20

      From: "[email-masked] [ham-antennas]" <[email-masked]>
 To: [email-masked]=20
 Sent: Tuesday, December 15, 2015 8:26 PM
 Subject: [ham-antennas] Re: Extended double Zepp - calculate stub length h=
ow?
=20=20=20
=C2=A0   I forgot to mention.=C2=A0 With the results you get from IMAXGRAF,=
 you will NOT need a 4:1 balun.=C2=A0 Instead just place a 1:1 at the ladde=
r line / coax junction to minimize any rf getting past that point and findi=
ng its way along the coax and back into your shack.=C2=A0 I've been using t=
his method to build lots of antennas over the years.=C2=A0 Lots of fun!

Good Luck and keep us posted as to what you build and how it works!  #yiv75=
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      <p><div style="color:#000;background-color:#fff;font-family:bookman old style, new york, times, serif;font-size:16px;"><div id="yui_3_16_0_1_1450383299277_17877" dir="ltr"><span id="yui_3_16_0_1_1450383299277_17880">It would be nice if I could get the software to run on my Windows 7</span></div><div></div><div id="yui_3_16_0_1_1450383299277_17879">&nbsp;</div><div class="signature" id="yui_3_16_0_1_1450383299277_17870"><div id="yui_3_16_0_1_1450383299277_17878"><br></div>David Coombs<div id="yui_3_16_0_1_1450383299277_17869"><div id="yui_3_16_0_1_1450383299277_17871">[email-masked]</div><div id="yui_3_16_0_1_1450383299277_17876"><br></div></div></div><br> <div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_1_1450383299277_17894">  <div style="font-family: bookman old style, new york, times, serif;font-size: 16px;" id="yui_3_16_0_1_1450383299277_17893"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size: 16px;" id="yui_3_16_0_1_1450383299277_17892"> <div dir="ltr"> <font size="2" face="Arial"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> "[email-masked] [ham-antennas]" &lt;[email-masked]&gt;<br> <b><span style="font-weight: bold;">To:</span></b> [email-masked] <br> <b><span style="font-weight: bold;">Sent:</span></b> Tuesday, December 15, 2015 8:26 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> [ham-antennas] Re: Extended double Zepp - calculate stub length how?<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_1_1450383299277_17891"><br><div id="yiv7509857968"><div id="yui_3_16_0_1_1450383299277_17890">
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      <div id="yui_3_16_0_1_1450383299277_17889">I forgot to mention.&nbsp; With the results you get from IMAXGRAF, you will NOT need a 4:1 balun.&nbsp; Instead just place a 1:1 at the ladder line / coax junction to minimize any rf getting past that point and finding its way along the coax and back into your shack.&nbsp; I've been using this method to build lots of antennas over the years.&nbsp; Lots of fun!<br clear="none"><br clear="none">Good Luck and keep us posted as to what you build and how it works!</div>

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