GNU bug report logs - #41609
28.0.50; xwidget-webkit flickers

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Package: emacs;

Reported by: Aiko Kyle <aikokyle <at> gmail.com>

Date: Fri, 29 May 2020 20:02:01 UTC

Severity: normal

Tags: moreinfo

Found in version 28.0.50

Fixed in version 29.1

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

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Report forwarded to bug-gnu-emacs <at> gnu.org:
bug#41609; Package emacs. (Fri, 29 May 2020 20:02:01 GMT) Full text and rfc822 format available.

Acknowledgement sent to Aiko Kyle <aikokyle <at> gmail.com>:
New bug report received and forwarded. Copy sent to bug-gnu-emacs <at> gnu.org. (Fri, 29 May 2020 20:02:01 GMT) Full text and rfc822 format available.

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

From: Aiko Kyle <aikokyle <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 28.0.50; xwidget-webkit flickers
Date: Fri, 29 May 2020 14:00:41 -0600
Steps to reproduce:
- emacs is configured --with-xwidgets
- emacs -Q
- M-x xwidget-webkit-browse-url with try any url
- M-x and type anything in minibuffer
While typing in the minibuffer one will observe a lot of flickering of
the xwidget-webkit window. I've also found that sometimes the entire
window will stop rendering its content, instead showing what was
previously behind it.

When searching around for this bug, it seems it has been encountered by
a few other people here [1] and here [2]. In [1] it seems to be that
this issues only affects emacs xwidget-webkit in linux while the ns port
seems to be unaffected, although I haven't tried running xwidgets on
macOS. In [2] there is a link to a video that shows similar behavior to
what I observe although that person is using it over a forwarded x11
frame. Emacs 26.3 also seems to be affected by this issue. In case it's
relevant (although I doubt it since others have observed this issue),
I'm using exwm as my window manager.

I've started looking through the code xwidget-webkit code in xwidget.c
although I have no experience with GTK code, so I was hoping someone
here might be able to help.

Thanks!
Akira Kyle


[1] https://github.com/fuxialexander/emacs-webkit-katex-render/issues/6#issuecomment-515979935
[2] https://www.reddit.com/r/emacs/comments/eoq4ud/instantpreview_markdown_org_files_with/feik3sm?utm_source=share&utm_medium=web2x
 

In GNU Emacs 28.0.50 (build 1, aarch64-unknown-linux-gnu, GTK+ Version 3.24.20, cairo version 1.16.0)
Repository revision: 104b68b670eb6de6614c562ae6b18c009b20584f
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12008000
System Description: NixOS 20.09 (Nightingale)

Configured using:
 'configure
 --prefix=/nix/store/shqqgl8dwmz7g5brcilap8xjx7kcwlkm-emacs-git-20200524.0
 --disable-build-details --with-modules --with-x-toolkit=gtk3 --with-xft
 --with-xwidgets CFLAGS=-DMAC_OS_X_VERSION_MAX_ALLOWED=101200'

Configured features:
XPM JPEG TIFF GIF PNG RSVG CAIRO SOUND DBUS GSETTINGS GLIB NOTIFY
INOTIFY LIBSELINUX GNUTLS LIBXML2 FREETYPE HARFBUZZ M17N_FLT LIBOTF ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11 XDBE XIM MODULES THREADS XWIDGETS
LIBSYSTEMD JSON PDUMPER GMP




Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#41609; Package emacs. (Mon, 08 Nov 2021 01:12:01 GMT) Full text and rfc822 format available.

Message #8 received at 41609 <at> debbugs.gnu.org (full text, mbox):

From: Po Lu <luangruo <at> yahoo.com>
To: Aiko Kyle <aikokyle <at> gmail.com>
Cc: 41609 <at> debbugs.gnu.org
Subject: Re: bug#41609: 28.0.50; xwidget-webkit flickers
Date: Mon, 08 Nov 2021 09:11:31 +0800
Aiko Kyle <aikokyle <at> gmail.com> writes:

> While typing in the minibuffer one will observe a lot of flickering of
> the xwidget-webkit window. I've also found that sometimes the entire
> window will stop rendering its content, instead showing what was
> previously behind it.

Please try latest master: This issue should be fixed there.

Thanks.




Added tag(s) moreinfo. Request was from Lars Ingebrigtsen <larsi <at> gnus.org> to control <at> debbugs.gnu.org. (Mon, 08 Nov 2021 01:13:02 GMT) Full text and rfc822 format available.

Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#41609; Package emacs. (Thu, 23 Dec 2021 10:34:01 GMT) Full text and rfc822 format available.

Message #13 received at 41609 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Po Lu <luangruo <at> yahoo.com>
Cc: Aiko Kyle <aikokyle <at> gmail.com>, 41609 <at> debbugs.gnu.org
Subject: Re: bug#41609: 28.0.50; xwidget-webkit flickers
Date: Thu, 23 Dec 2021 11:33:28 +0100
Po Lu <luangruo <at> yahoo.com> writes:

>> While typing in the minibuffer one will observe a lot of flickering of
>> the xwidget-webkit window. I've also found that sometimes the entire
>> window will stop rendering its content, instead showing what was
>> previously behind it.
>
> Please try latest master: This issue should be fixed there.

This was six weeks ago, so I assume that the fix worked, and I'm closing
this bug report.  If the issue is still present, please respond to the
debbugs address and we'll reopen.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no




bug marked as fixed in version 29.1, send any further explanations to 41609 <at> debbugs.gnu.org and Aiko Kyle <aikokyle <at> gmail.com> Request was from Lars Ingebrigtsen <larsi <at> gnus.org> to control <at> debbugs.gnu.org. (Thu, 23 Dec 2021 10:34:02 GMT) Full text and rfc822 format available.

bug archived. Request was from Debbugs Internal Request <help-debbugs <at> gnu.org> to internal_control <at> debbugs.gnu.org. (Thu, 20 Jan 2022 12:24:05 GMT) Full text and rfc822 format available.

This bug report was last modified 2 years and 68 days ago.

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