Bug 94691 (Impress-OpenGL) - [META] Impress OpenGL transition bugs
Summary: [META] Impress OpenGL transition bugs
Status: NEW
Alias: Impress-OpenGL
Product: LibreOffice
Classification: Unclassified
Component: Impress (show other bugs)
(earliest affected) Master
Hardware: Other All
: medium normal
Assignee: Not Assigned
: 98503 (view as bug list)
Depends on: 82319 99138 107639 122737 127464 151790 75715 78703 80448 81055 82797 84416 88229 89011 89090 89419 90897 91583 92018 92184 92734 94384 95479 96133 96328 96493 96655 97171 98227 98379 98697 98709 98710 103046 103236 104796 113045 114316 116213 116365 116484 116509 117659 118495 131610 144289
Blocks: Slide-Transitions
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Reported: 2015-10-02 11:04 UTC by Yousuf Philips (jay) (retired)
Modified: 2023-05-19 19:15 UTC (History)
10 users (show)

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Crash report or crash signature:


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Description Yousuf Philips (jay) (retired) 2015-10-02 11:04:43 UTC
Bug tracker for all OpenGL bugs
Comment 1 pieter kristensen 2015-10-14 11:30:16 UTC Comment hidden (obsolete)
Comment 2 Joel Madero 2015-11-13 04:24:22 UTC Comment hidden (obsolete)
Comment 3 Joel Madero 2015-11-13 04:25:44 UTC Comment hidden (obsolete)
Comment 4 Yousuf Philips (jay) (retired) 2015-11-17 09:23:54 UTC
(In reply to Joel Madero from comment #2)
> How is this not a duplicate meta tracker (see bug 93529)

That meta tracker is focused on stuff in 5.0 and above, while the bugs here are focused on all opengl bugs that were introduced/reported since the fork.
Comment 5 Joel Madero 2015-11-17 15:12:21 UTC Comment hidden (obsolete)
Comment 6 Cor Nouws 2015-11-29 17:58:36 UTC Comment hidden (obsolete)
Comment 7 tommy27 2015-12-08 08:44:24 UTC Comment hidden (obsolete)
Comment 8 Eric 2016-03-07 21:25:54 UTC Comment hidden (obsolete)
Comment 9 Cor Nouws 2016-03-16 15:52:40 UTC Comment hidden (obsolete)
Comment 10 Rafael Lima 2020-08-29 13:48:04 UTC
I have been experiencing flickering transitions for a while in my PC, but today I had an important insight as to what causes it. In summary, it happens only with the VCL-Gtk version of LibreOffice. The video below shows the flickering transition bug happening on my PC.


The video was made using Ubuntu 20.04 (Gnome 3.36), thus with VCL-Gtk.

I had to format my PC and installed KDE Neon. After that I installed LibreOffice and took the opportunity to test if the transition bug was still there. And indeed it was still there... but then I noticed that the LibreOffice version installed was the VCL-Gtk one, even though I was on a KDE desktop environment.

Then what I did was uninstall LibreOffice and reinstall it using the libreoffice-kf5 package. After that, I tested the transition bug and it disappeared. All was working fine.

In conclusion, I tested LibreOffice using the same PC, the same DE (KDE Plasma 5.19.4), the same packaging source (the LibreOffice PPA), but I only changed the VCL version from Gtk to Kf5. And it fixed the problem on my computer. Hence, I believe that this may have something to do with the Gtk implementation of LibreOffice.

As a side note, the fade animations work well with VCL-Gtk, whereas transitions are buggy. I'm not sure if this means anything, but I think it is worth mentioning.