GNU bug report logs - #20997
display issues with cairo

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Package: emacs;

Reported by: James Cloos <cloos <at> jhcloos.com>

Date: Mon, 6 Jul 2015 21:37:02 UTC

Severity: minor

Tags: help

Found in version 25.0.50

Done: Mark Oteiza <mvoteiza <at> udel.edu>

Bug is archived. No further changes may be made.

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Report forwarded to bug-gnu-emacs <at> gnu.org:
bug#20997; Package emacs. (Mon, 06 Jul 2015 21:37:02 GMT) Full text and rfc822 format available.

Acknowledgement sent to James Cloos <cloos <at> jhcloos.com>:
New bug report received and forwarded. Copy sent to bug-gnu-emacs <at> gnu.org. (Mon, 06 Jul 2015 21:37:02 GMT) Full text and rfc822 format available.

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

From: James Cloos <cloos <at> jhcloos.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.0.50; display broken
Date: Mon, 06 Jul 2015 17:35:22 -0400
With todqay’s master, some fonts are renderred too light (I compared
with pango-view, which uses the same freetype).  Light enough to be
hsrd to read.

And more importantly, it does not refresh the frame;  if any other X
windows occlude the frame, those sections remain white until a C-l.



In GNU Emacs 25.0.50.1 (x86_64-pc-linux-gnu, X toolkit, cairo version 1.14.1, Xaw3d scroll bars)
 of 2015-07-06 on carbon.jhcloos.org
Repository revision: 60ea900848ee03e1ccdba565220f589e0d8e72e9
Windowing system distributor `The X.Org Foundation', version 11.0.11699901
System Description:	Gentoo Base System release 2.2

Configured using:
 `configure --prefix=/usr --build=x86_64-pc-linux-gnu
 --host=x86_64-pc-linux-gnu --mandir=/usr/share/man
 --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc
 --localstatedir=/var/lib --disable-dependency-tracking
 --disable-silent-rules --libdir=/usr/lib64
 --program-suffix=-emacs-25-vcs --infodir=/usr/share/info/emacs-25-vcs
 --localstatedir=/var
 --enable-locallisppath=/etc/emacs:/usr/share/emacs/site-lisp
 --with-gameuser=:gamestat --without-compress-install
 --with-file-notification=inotify --enable-acl --with-dbus --with-gnutls
 --with-gpm --without-hesiod --with-kerberos --with-kerberos5
 --with-xml2 --without-selinux --without-wide-int --with-zlib
 --with-sound=alsa --with-x --without-ns --with-cairo --without-gconf
 --without-gsettings --with-toolkit-scroll-bars --with-gif --with-jpeg
 --with-png --with-rsvg --with-tiff --with-xpm --with-imagemagick
 --with-xft --with-libotf --with-m17n-flt --with-x-toolkit=lucid
 --with-xaw3d GENTOO_PACKAGE=app-editors/emacs-vcs-25.0.9999-r1
 EGIT_BRANCH=master
 EGIT_VERSION=60ea900848ee03e1ccdba565220f589e0d8e72e9 'CFLAGS=-pipe -O2
 -g3 -march=native' CPPFLAGS= 'LDFLAGS=-Wl,-O1 -Wl,--as-needed''

Configured features:
XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS NOTIFY
ACL GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS
LUCID X11

Important settings:
  value of $LC_COLLATE: C
  value of $LC_CTYPE: en_US.UTF-8
  value of $LC_TIME: C
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Group

Minor modes in effect:
  gnus-undo-mode: t
  show-paren-mode: t
  display-time-mode: t
  shell-dirtrack-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  buffer-read-only: t
  column-number-mode: t
  line-number-mode: t

Recent messages:
Wrote /home/cloos/.newsrc.eld
Saving /home/cloos/.newsrc.eld...done
Saving file /home/cloos/.newsrc...
Wrote /home/cloos/.newsrc
Saving /home/cloos/.newsrc.eld...
Adding whitespace to .newsrc.eld
Saving file /home/cloos/.newsrc.eld...
Wrote /home/cloos/.newsrc.eld
Saving /home/cloos/.newsrc.eld...done
Making completion list...

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/usr/share/emacs/site-lisp/gnus/gnus-html hides /usr/share/emacs/25.0.50/lisp/gnus/gnus-html
/usr/share/emacs/site-lisp/gnus/nnweb hides /usr/share/emacs/25.0.50/lisp/gnus/nnweb
/usr/share/emacs/site-lisp/gnus/message hides /usr/share/emacs/25.0.50/lisp/gnus/message
/usr/share/emacs/site-lisp/gnus/nnvirtual hides /usr/share/emacs/25.0.50/lisp/gnus/nnvirtual
/usr/share/emacs/site-lisp/gnus/spam-report hides /usr/share/emacs/25.0.50/lisp/gnus/spam-report
/usr/share/emacs/site-lisp/gnus/gnus-registry hides /usr/share/emacs/25.0.50/lisp/gnus/gnus-registry
/usr/share/emacs/site-lisp/gnus/mailcap hides /usr/share/emacs/25.0.50/lisp/gnus/mailcap
/usr/share/emacs/site-lisp/gnus/gnus-agent hides /usr/share/emacs/25.0.50/lisp/gnus/gnus-agent
/usr/share/emacs/site-lisp/gnus/gnus-bookmark hides /usr/share/emacs/25.0.50/lisp/gnus/gnus-bookmark
/usr/share/emacs/site-lisp/gnus/nnheader hides /usr/share/emacs/25.0.50/lisp/gnus/nnheader
/usr/share/emacs/site-lisp/gnus/gnus-cache hides /usr/share/emacs/25.0.50/lisp/gnus/gnus-cache
/usr/share/emacs/site-lisp/gnus/gnus-score hides /usr/share/emacs/25.0.50/lisp/gnus/gnus-score
/usr/share/emacs/site-lisp/gnus/mm-url hides /usr/share/emacs/25.0.50/lisp/gnus/mm-url
/usr/share/emacs/site-lisp/gnus/nnnil hides /usr/share/emacs/25.0.50/lisp/gnus/nnnil
/usr/share/emacs/site-lisp/gnus/time-date hides /usr/share/emacs/25.0.50/lisp/calendar/time-date
/usr/share/emacs/site-lisp/gnus/parse-time hides /usr/share/emacs/25.0.50/lisp/calendar/parse-time

Features:
(shadow gnus-fun nnir emacsbug sendmail shr-color color url-http
url-auth url-gw shr dom subr-x flow-fill epg sort gnus-cite qp
mm-archive mail-extr gnus-async face-remap quilt gnus-kill gnus-ml
disp-table repeat misearch multi-isearch nndraft nnmh nnml utf-7
nnmaildir nnfolder network-stream nsm starttls gnus-agent gnus-srvr
gnus-score score-mode nnvirtual gnus-msg gnus-art mm-uu mml2015
epg-config mm-view mml-smime smime dig nntp gnus-cache gnus-sum
gnus-group gnus-undo gnus-start gnus-cloud nnimap nnmail mail-source tls
utf7 netrc nnoo parse-time gnus-spec gnus-int gnus-range message idna
dired rfc822 mml mml-sec mm-decode mm-bodies mm-encode mail-parse
rfc2231 rfc2047 rfc2045 ietf-drums mailabbrev gmm-utils mailheader
gnus-win gnus gnus-ems gnus-compat url url-proxy url-privacy url-expand
url-methods url-history url-cookie url-domsuf url-util url-parse
auth-source cl-seq eieio byte-opt bytecomp byte-compile cl-extra cconv
eieio-core password-cache url-vars mailcap nnheader gnus-util mail-utils
mm-util help-fns mail-prsvr wid-edit jka-compr paren time delsel
cus-start cus-load elscreen jhc-backend-xft-fonts cl-macs gnus-load
w3m-load preview-latex scala-mode-auto mmm-auto mmm-vars mmm-compat cl
gv edmacro kmacro cl-loaddefs pcase cl-lib imenu ido seq ess-toolbar
ess-mouse mouseme thingatpt browse-url ess-menu ess-swv ess-noweb
ess-noweb-font-lock-mode ess-bugs-l essd-els ess-sas-d ess-sas-l
ess-sas-a shell pcomplete ess-sta-d ess-sta-l cc-vars cc-defs
make-regexp ess-sp6-d ess-sp3-d ess-julia ess-r-d ess-r-completion
compile ess-tracebug format-spec ess-roxy advice hideshow ess-help
ess-developer ess-s-l ess ess-inf comint ansi-color ring ess-mode
ess-noweb-mode ess-utils ess-custom executable easymenu ess-compat
ess-site bbdb-loaddefs tex-site auto-loads time-date mule-util tooltip
eldoc electric uniquify ediff-hook vc-hooks lisp-float-type mwheel x-win
term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe
tabulated-list newcomment elisp-mode lisp-mode prog-mode register page
menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock font-lock
syntax facemenu font-core frame cl-generic cham georgian utf-8-lang
misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms
cp51932 hebrew greek romanian slovak czech european ethiopic indian
cyrillic chinese charscript case-table epa-hook jka-cmpr-hook help
simple abbrev minibuffer cl-preloaded nadvice loaddefs button faces
cus-face macroexp files text-properties overlay sha1 md5 base64 format
env code-pages mule custom widget hashtable-print-readable backquote
dbusbind inotify dynamic-setting font-render-setting cairo x-toolkit x
multi-tty make-network-process emacs)

Memory information:
((conses 16 2650289 1410220)
 (symbols 48 232842 0)
 (miscs 40 3122 2031)
 (strings 32 283776 666839)
 (string-bytes 1 8890300)
 (vectors 16 39577)
 (vector-slots 8 1416414 168402)
 (floats 8 589 457)
 (intervals 56 14664 1558)
 (buffers 976 117)
 (heap 1024 245928 59573))




Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#20997; Package emacs. (Tue, 07 Jul 2015 15:02:01 GMT) Full text and rfc822 format available.

Message #8 received at 20997 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: James Cloos <cloos <at> jhcloos.com>
Cc: 20997 <at> debbugs.gnu.org
Subject: Re: bug#20997: 25.0.50; display broken
Date: Tue, 07 Jul 2015 18:00:37 +0300
> From: James Cloos <cloos <at> jhcloos.com>
> Date: Mon, 06 Jul 2015 17:35:22 -0400
> 
> With todqay’s master, some fonts are renderred too light (I compared
> with pango-view, which uses the same freetype).  Light enough to be
> hsrd to read.
> 
> And more importantly, it does not refresh the frame;  if any other X
> windows occlude the frame, those sections remain white until a C-l.

When was the last build that did work correctly wrt these issues?




Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#20997; Package emacs. (Tue, 07 Jul 2015 16:12:01 GMT) Full text and rfc822 format available.

Message #11 received at 20997 <at> debbugs.gnu.org (full text, mbox):

From: James Cloos <cloos <at> jhcloos.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 20997 <at> debbugs.gnu.org
Subject: Re: bug#20997: 25.0.50; display broken
Date: Tue, 07 Jul 2015 12:10:20 -0400
>>>>> "EZ" == Eli Zaretskii <eliz <at> gnu.org> writes:

>> From: James Cloos <cloos <at> jhcloos.com>
>> Date: Mon, 06 Jul 2015 17:35:22 -0400
>> 
>> With todqay’s master, some fonts are renderred too light (I compared
>> with pango-view, which uses the same freetype).  Light enough to be
>> hsrd to read.
>> 
>> And more importantly, it does not refresh the frame;  if any other X
>> windows occlude the frame, those sections remain white until a C-l.

EZ> When was the last build that did work correctly wrt these issues?

Due to the stroke, I've not updated in a while.

The log shows:

GIT update -->
   repository:               git://git.sv.gnu.org/emacs.git
   updating from commit:     76f2d766ad6691eae6ae4006264f59724cc73a23
   to commit:                60ea900848ee03e1ccdba565220f589e0d8e72e9

After hitting the wrong key an having to restart, emacs came up
unwilling to show anything in the frame, once I used the WM to maximize,
which was not already part of the original frame.

OTOH, if I made the frame larger one row or column at a time (using the
mouse to drag the WM's edge decorations), it used the whole frame.

And it even re displays correctly after dragging another window over the
frame.

So it seems limited to frames which are resized quickly, such as via 
_NET_WM_STATE_MAXIMIZED_VERT and/or _NET_WM_STATE_MAXIMIZED_HORZ.

-JimC
-- 
James Cloos <cloos <at> jhcloos.com>         OpenPGP: 0x997A9F17ED7DAEA6




Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#20997; Package emacs. (Tue, 07 Jul 2015 17:02:01 GMT) Full text and rfc822 format available.

Message #14 received at 20997 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: James Cloos <cloos <at> jhcloos.com>
Cc: 20997 <at> debbugs.gnu.org, Eli Zaretskii <eliz <at> gnu.org>
Subject: Re: bug#20997: 25.0.50; display broken
Date: Tue, 07 Jul 2015 13:01:29 -0400
FWIW I did a with-cairo build of current master and saw no such issues.




Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#20997; Package emacs. (Wed, 08 Jul 2015 05:15:02 GMT) Full text and rfc822 format available.

Message #17 received at 20997 <at> debbugs.gnu.org (full text, mbox):

From: James Cloos <cloos <at> jhcloos.com>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 20997 <at> debbugs.gnu.org, Eli Zaretskii <eliz <at> gnu.org>
Subject: Re: bug#20997: 25.0.50; display broken
Date: Wed, 08 Jul 2015 01:11:36 -0400
>>>>> "GM" == Glenn Morris <rgm <at> gnu.org> writes:

GM> FWIW I did a with-cairo build of current master and saw no such issues.

Thanks for the hint.  Re-compiling w/o cairo in my USE flags, which
therefore passes --without-cairo instead of --with-cairo, fixde the
display issues.

I hadn't noticed the new addition.

My workstation also runs cairo master; perhaps the difference is due to
more recent cairo?

The P/T is helping, but typing is still difficult and error prone.
I don't know to what extent I'll be able to help debug this.

-JimC
-- 
James Cloos <cloos <at> jhcloos.com>         OpenPGP: 0x997A9F17ED7DAEA6




Changed bug title to 'display issues with cairo' from '25.0.50; display broken' Request was from Glenn Morris <rgm <at> gnu.org> to control <at> debbugs.gnu.org. (Wed, 08 Jul 2015 19:53:01 GMT) Full text and rfc822 format available.

Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#20997; Package emacs. (Sat, 12 Sep 2015 17:07:01 GMT) Full text and rfc822 format available.

Message #22 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Mark Oteiza <mvoteiza <at> udel.edu>
To: bug-gnu-emacs <at> gnu.org
Subject: Re: bug#20997: 25.0.50; display broken
Date: Sat, 12 Sep 2015 13:06:47 -0400
Glenn Morris <rgm <at> gnu.org> writes:
> FWIW I did a with-cairo build of current master and saw no such issues.

I see lots of display errors, though erratically. Here's a screenshot, erasing
the display with an X window

https://i.imgur.com/z8h0z74.png

In GNU Emacs 25.0.50.1 (x86_64-unknown-linux-gnu, X toolkit, cairo version 1.14.2, Xaw scroll bars)
 of 2015-09-11
Repository revision: e125dce50b2fa1c5f57f6ca00ea679437593bdc4
Configured using:
 'configure --prefix=/usr --sysconfdir=/etc --libexecdir=/usr/lib
 --localstatedir=/var --without-gconf --without-imagemagick --with-cairo
 --with-x-toolkit=lucid 'CFLAGS=-march=x86-64 -mtune=generic -O2 -pipe
 -fstack-protector-strong --param=ssp-buffer-size=4'
 CPPFLAGS=-D_FORTIFY_SOURCE=2
 LDFLAGS=-Wl,-O1,--sort-common,--as-needed,-z,relro'

Configured features:
XPM JPEG TIFF GIF PNG RSVG CAIRO SOUND GPM DBUS GSETTINGS NOTIFY ACL
GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS
LUCID X11




Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#20997; Package emacs. (Wed, 19 Jul 2017 20:39:02 GMT) Full text and rfc822 format available.

Message #25 received at 20997 <at> debbugs.gnu.org (full text, mbox):

From: Felipe Ochoa <felipe.nospam.ochoa <at> gmail.com>
To: 20997 <at> debbugs.gnu.org
Subject: Re: bug#20997: 25.0.50; display broken
Date: Wed, 19 Jul 2017 22:38:16 +0200
[Message part 1 (text/plain, inline)]
I just hit this bug as well with 25.2.1. Changing from `--with-cairo` to
`--without-cairo` solved the problem for me. In addition to the issues
described by James, I experienced a further problem with font rendering
when I did the following:

1. Open new emacs frame
2. Drag the border to increase the frame size
3. Switch to another buffer
4. Switch back to original buffer

You can see the results here: http://imgur.com/a/rb1Yb
[Message part 2 (text/html, inline)]

Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#20997; Package emacs. (Wed, 12 Aug 2020 04:27:02 GMT) Full text and rfc822 format available.

Message #28 received at 20997 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Kangas <stefan <at> marxist.se>
To: Mark Oteiza <mvoteiza <at> udel.edu>
Cc: 20997 <at> debbugs.gnu.org
Subject: Re: bug#20997: 25.0.50; display broken
Date: Tue, 11 Aug 2020 21:26:18 -0700
Mark Oteiza <mvoteiza <at> udel.edu> writes:

> Glenn Morris <rgm <at> gnu.org> writes:
>> FWIW I did a with-cairo build of current master and saw no such issues.
>
> I see lots of display errors, though erratically. Here's a screenshot, erasing
> the display with an X window
>
> https://i.imgur.com/z8h0z74.png

That was 5 years ago.  Are you still seeing this on a recent version of
Emacs, such as the recently released version 27.1?  Thanks.

Best regards,
Stefan Kangas




Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#20997; Package emacs. (Wed, 12 Aug 2020 04:27:02 GMT) Full text and rfc822 format available.

Message #31 received at 20997 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Kangas <stefan <at> marxist.se>
To: James Cloos <cloos <at> jhcloos.com>
Cc: 20997 <at> debbugs.gnu.org, Glenn Morris <rgm <at> gnu.org>,
 Eli Zaretskii <eliz <at> gnu.org>
Subject: Re: bug#20997: 25.0.50; display broken
Date: Tue, 11 Aug 2020 21:26:13 -0700
James Cloos <cloos <at> jhcloos.com> writes:

>>>>>> "GM" == Glenn Morris <rgm <at> gnu.org> writes:
>
> GM> FWIW I did a with-cairo build of current master and saw no such issues.
>
> Thanks for the hint.  Re-compiling w/o cairo in my USE flags, which
> therefore passes --without-cairo instead of --with-cairo, fixde the
> display issues.
>
> I hadn't noticed the new addition.
>
> My workstation also runs cairo master; perhaps the difference is due to
> more recent cairo?
>
> The P/T is helping, but typing is still difficult and error prone.
> I don't know to what extent I'll be able to help debug this.
>
> -JimC

That was 5 years ago.  Are you still seeing this on a recent version of
Emacs, such as the recently released version 27.1?  Thanks.

Best regards,
Stefan Kangas




Reply sent to Mark Oteiza <mvoteiza <at> udel.edu>:
You have taken responsibility. (Wed, 12 Aug 2020 16:29:01 GMT) Full text and rfc822 format available.

Notification sent to James Cloos <cloos <at> jhcloos.com>:
bug acknowledged by developer. (Wed, 12 Aug 2020 16:29:01 GMT) Full text and rfc822 format available.

Message #36 received at 20997-done <at> debbugs.gnu.org (full text, mbox):

From: Mark Oteiza <mvoteiza <at> udel.edu>
To: Stefan Kangas <stefan <at> marxist.se>
Cc: 20997-done <at> debbugs.gnu.org
Subject: Re: bug#20997: 25.0.50; display broken
Date: Wed, 12 Aug 2020 12:27:54 -0400
On 11/08/20 at 09:26pm, Stefan Kangas wrote:
> Mark Oteiza <mvoteiza <at> udel.edu> writes:
> 
> > Glenn Morris <rgm <at> gnu.org> writes:
> >> FWIW I did a with-cairo build of current master and saw no such issues.
> >
> > I see lots of display errors, though erratically. Here's a screenshot, erasing
> > the display with an X window
> >
> > https://i.imgur.com/z8h0z74.png
> 
> That was 5 years ago.  Are you still seeing this on a recent version of
> Emacs, such as the recently released version 27.1?  Thanks.

No, I'd say this is obsolete.  Closing, thanks.




Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#20997; Package emacs. (Sun, 16 Aug 2020 22:14:02 GMT) Full text and rfc822 format available.

Message #39 received at 20997 <at> debbugs.gnu.org (full text, mbox):

From: James Cloos <cloos <at> jhcloos.com>
To: 20997 <at> debbugs.gnu.org
Cc: Stefan Kangas <stefan <at> marxist.se>
Subject: Re: bug#20997: 25.0.50; display broken
Date: Sun, 16 Aug 2020 18:11:37 -0400
i still use master on my workstation; these days with-cairo in the hopes
of avoiding font-related crashes.

(i had added with-cairo quite a while back when it made no difference
to fonts, but removed it for a time bacause xft: was so much better.
but now cr: is mostly ok, so am back to with-cairo.)

after re-reading my original message, i agree that this seems fixed;
both with-cairo and without-.

-JimC
-- 
James Cloos <cloos <at> jhcloos.com>         OpenPGP: 0x997A9F17ED7DAEA6




bug archived. Request was from Debbugs Internal Request <help-debbugs <at> gnu.org> to internal_control <at> debbugs.gnu.org. (Mon, 14 Sep 2020 11:24:09 GMT) Full text and rfc822 format available.

This bug report was last modified 3 years and 196 days ago.

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