Bug 169619 - Help - About LibreOfficeWindow dialog title is wrong in GTK4
Summary: Help - About LibreOfficeWindow dialog title is wrong in GTK4
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: LibreOffice (show other bugs)
Version:
(earliest affected)
25.8.3.2 release
Hardware: All Linux (All)
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: GTK4
  Show dependency treegraph
 
Reported: 2025-11-22 18:19 UTC by rushing27alien
Modified: 2026-05-29 11:51 UTC (History)
3 users (show)

See Also:
Crash report or crash signature:


Attachments
screenshot (252.51 KB, image/png)
2026-05-29 11:51 UTC, BogdanB
Details

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Description rushing27alien 2025-11-22 18:19:26 UTC
Description:
Hello, I'd like to report on a few Issues with LibreOffice's (LO) GTK4 VCL plugin. 
1. Export as PDF button crashes LO under the GTK4 VCL plugin.
2. Toolbar is broken on dark mode — has white-black gradient.
3. About window has an off-positioned headerbar.

Here are attachment for each bug mentioned in order
1. https://share.rushingalien.my.id/lo_bug_report/export-pdf-crash.mp4
2. https://share.rushingalien.my.id/lo_bug_report/dark-mode-broken.png
3. https://share.rushingalien.my.id/lo_bug_report/about-screen-headerbar-offset.png

Steps to Reproduce:
1. Install/Build LibreOffice with GTK4 VCL support
2. Start LibreOffice and enable GTK4 VCL with the env `SAL_USE_VCLPLUGIN=GTK4`
3. Do one of:
  a. File → Export as PDF
  b. Use dark mode
  c. View About Window

Actual Results:
3a. Crash upon clicking Export as PDF
3b. Dark mode broken on toolbar
3c. About window's headerbar is not properly positioned

Expected Results:
3a. Export as PDF to work
3b. Dark mode to not have a white-gray gradient toolbar
3c. About window's headerbar to be properly positioned


Reproducible: Always


User Profile Reset: Yes

Additional Info:
Version: 25.8.3.2 (X86_64) / LibreOffice Community
Build ID: 8ca8d55c161d602844f5428fa4b58097424e324e
CPU threads: 16; OS: Linux 6.17; UI render: default; VCL: gtk4
Locale: id-ID (id_ID.UTF-8); UI: id-ID
Flatpak
Calc: CL threaded
Comment 1 V Stuart Foote 2025-11-22 21:19:04 UTC Comment hidden (obsolete)
Comment 2 BogdanB 2026-05-29 11:41:36 UTC Comment hidden (obsolete)
Comment 3 BogdanB 2026-05-29 11:50:08 UTC
So, PDF export crash was reported as bug 
https://bugs.documentfoundation.org/show_bug.cgi?id=169625

The dark mode was reported as 
https://bugs.documentfoundation.org/show_bug.cgi?id=169624

So, this one will be about "Help - About LibreOffice" dialog
Comment 4 BogdanB 2026-05-29 11:51:08 UTC
Created attachment 207264 [details]
screenshot