[Libreoffice-bugs] [Bug 121338] New: Most transitions don't work.

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=121338

            Bug ID: 121338
           Summary: Most transitions don't work.
           Product: LibreOffice
           Version: 6.1.0.3 release
          Hardware: All
                OS: Linux (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Impress
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: rolandixor at gmail.com

Description:
Since upgrading to 6.1 in Ubuntu 18.10, transitions no longer work, on multiple
systems.

This only occurs on Linux, as the Windows systems we use don't have this
problem.

One system is using Nvidia graphics with the proprietary driver, the other,
Intel Graphics (Sandy Bridge era). In the past, some transitions were broken on
the intel system due to the lack of support for the OpenGL extensions in use.
However, now, both systems have no transitions at all.

• Hardware acceleration is enabled on both.
• OpenGL is disabled unless you disable the blacklist, but this doesn't help.
• The problem occurs in both Plasma and Gnome, and even other environments.

Steps to Reproduce:
1. Create a presentation.
2. Add a transition.
3. Cry, because it doesn't work.

Actual Results:
No transitions play. Instead, there is a black screen or black area (when
previewing), for the duration of the transition.

Expected Results:
Play the transition.


Reproducible: Always


User Profile Reset: Yes


OpenGL enabled: Yes

Additional Info:
This is a regression.

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