GNU bug report logs - #31169
Emacs 26.1 RC1 (gtk) display issues over SSH/X11 with xming/vcxsrv due to double-buffering

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From: charlie hemlock <charliehemlock <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 31169 <at> debbugs.gnu.org, Noam Postavsky <npostavs <at> gmail.com>
Subject: bug#31169: 26.1; Emacs 26.1 RC1 (gtk) display issues over SSH/X11 with xming/vcxsrv
Date: Thu, 19 Apr 2018 19:41:33 -0400

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> And according to the table you show, those menu problems are resolved
> in a later version of GTK+, is that right?

I believe so, CentOS 7 still has menu issues.
& I did see other oddness -  but still definitely better with
inhibit-double-buffering


loading with init.el that only contains:
modify-frame-parameters nil '((inhibit-double-buffering . t)))

emacs -q -l ./init.el


CentOS7, gtk: 2.24.31,  gtk3: 3.22.10
| emacs      | VcXsrv                           |
| 25.3  gtk2 | ok                               |
| 25.3  gtk3 | ok, no emacs logo, menus no show |
| 26.1  gtk2 | ok                               |
| 26.1  gtk3 | ok, no emacs logo, menus no show |

OpenSUSE Leap 42.3 , gtk2: 2.24.31,  gtk3: 3.22.10
| emacs      | VcXsrv                    |
| 25.3  gtk2 | ok                        |
| 25.3  gtk3 | ok, but no emacs logo (1) |
| 26.1  gtk2 | ok                        |
| 26.1  gtk3 | ok, but no emacs logo (1) |


OpenSUSE Tumbleweed, gtk2: 2.24.32,  gtk3: 3.22.29
| emacs      | VcXsrv                    |
| 25.3  gtk2 | ok                        |
| 25.3  gtk3 | ok, but no emacs logo (2) |
| 26.1  gtk2 | ok                        |
| 26.1  gtk3 | ok, but no emacs logo (2) |

(1)  "About GNU" launches external browser when in ssh
remote session. But "M-x eww gnu.org" will display in eww mode.
Additionally, local emacs session uses Eww mode for the about pages, and
displays emacs logo.

(2) "About GNU" launches non-emacs text editor of .html when in ssh
remote session. But "M-x eww gnu.org" will display in eww mode.
Additionally, local emacs session does use Eww mode for About GNU.
but also opens the .html into non-emacs text editor (gedit), and does not
display emacs logo at startup.

On Thu, Apr 19, 2018 at 2:47 AM, Eli Zaretskii <eliz <at> gnu.org> wrote:

> > From: Noam Postavsky <npostavs <at> gmail.com>
> > Date: Wed, 18 Apr 2018 21:27:40 -0400
> > Cc: 31169 <at> debbugs.gnu.org
> >
> > charlie hemlock <charliehemlock <at> gmail.com> writes:
> >
> > > However, in Centos7 (with vcxsrv), the file menus don't appear OK when
> > > clicked as previously reported (see gtk errors in previous posts) A
> > > different issue?
> >
> > Yeah, the other bug specifically mentions that menus work fine, so it
> > sounds like you're hitting some other issue as well.
>
> And according to the table you show, those menu problems are resolved
> in a later version of GTK+, is that right?
>

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