Bug 170623 - Can not sort slides with VCL X11
Summary: Can not sort slides with VCL X11
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Impress (show other bugs)
Version:
(earliest affected)
3.5.0 release
Hardware: x86-64 (AMD64) Linux (All)
: low minor
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2026-02-05 15:47 UTC by Andreas Säger
Modified: 2026-02-05 17:50 UTC (History)
1 user (show)

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Description Andreas Säger 2026-02-05 15:47:13 UTC
Version: 25.8.4.2 (X86_64), 26.2 too
Build ID: 290daaa01b999472f0c7a3890eb6a550fd74c6df
CPU threads: 4; OS: Linux 6.12; UI render: Skia/Raster; VCL: x11
Locale: de-DE (de_DE.UTF-8); UI: en-US
Calc: threaded

When I drag a slide in the slide sorter, the mouse cursor shows a stop icon and nothing happens. With Ctrl key, the slide is copied. The additional slide goes directly behind its origin, so I can't re-organize any slides. Same in outline view. 
No issue with VCL=gtk.
Comment 1 Buovjaga 2026-02-05 16:55:22 UTC
This has apparently never worked. Tried in both a Wayland and X11 session.

Andreas: maybe you know this, but the x11 UI should only be used for testing. It is not intended for production use.
Comment 2 Andreas Säger 2026-02-05 17:27:26 UTC
This is not a matter of Wayland vs. X11. It is a matter of the Visual Class Library between LibreOffice and the graphical user interface.
I do enforce the generic interface, because I mainly use the Base component. Base forms are barely usable with GTK. For me, Base works with the generic library and with Windows. Did not install KDE stuff in more than a decade.

As already said, this Impress issue goes away using the GTK library. If VCL=gen is for testing, then nobody tested the slide sorter with Linux.
Comment 3 Buovjaga 2026-02-05 17:35:15 UTC
(In reply to Andreas Säger from comment #2)
> This is not a matter of Wayland vs. X11. It is a matter of the Visual Class
> Library between LibreOffice and the graphical user interface.

What you say is besides the point. I was just recording the result on my testing. In a case like this, it is useful to try in both Wayland and X11.

> I do enforce the generic interface, because I mainly use the Base component.
> Base forms are barely usable with GTK. For me, Base works with the generic
> library and with Windows. Did not install KDE stuff in more than a decade.

Did you report your issues related to gtk3?
 
> As already said, this Impress issue goes away using the GTK library. If
> VCL=gen is for testing, then nobody tested the slide sorter with Linux.

Sure, but the point is that it is not as high priority as gtk3 or the Qt-based UIs.
Comment 4 Andreas Säger 2026-02-05 17:50:51 UTC
> In a case like this, it is useful to try in both Wayland and X11.

Right now, I'm running a Debian system that does not support Wayland (hangs on startup). Ubuntu on the same hardware did support Wayland. I'm kind of tired.

> Did you report your issues related to gtk3?
https://bugs.documentfoundation.org/show_bug.cgi?id=156924