[Libreoffice-bugs] [Bug 111874] New: Regression: glitch in fade-> smoothly transition in 5.4 wrt 5.3 (linux, intel graphics)

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=111874

            Bug ID: 111874
           Summary: Regression: glitch in fade->smoothly transition in 5.4
                    wrt 5.3 (linux, intel graphics)
           Product: LibreOffice
           Version: 5.4.0.3 release
          Hardware: All
                OS: Linux (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Impress
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: sergio.callegari at gmail.com

Description:
Seen on kubuntu linux 17.4 64bit with intel graphics (haswell mobile) and
latest intel graphics stack (from git and dedicated ubuntu ppa).

In LibO 5.3.x impress, the fade smoothly transition works perfectly on this
hardware and software configuration. In LibO 5.4.x it does not, as the screen
flashes briefly during the transition.

Steps to Reproduce:
1. Set up presentation with fade->smoothly transition between slides (I have a
0.5 sec duration for the effect, but it should not make any difference)
2. Play the same presentation, both with LibO 5.3 impress and LibO 5.4 impress 
3. Notice that the fade transition is smooth only with 5.3

Actual Results:  
Notice that the fade transition is non smooth with 5.4

Expected Results:
The fade transition should be smooth as it is with 5.3


Reproducible: Always

User Profile Reset: No

Additional Info:
[Information automatically included from LibreOffice]
Locale: en-US
Module: PresentationDocument
[Information guessed from browser]
OS: Linux (All)
OS is 64bit: yes
Builds ID: LibreOffice 5.4.1.1


User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:55.0) Gecko/20100101
Firefox/55.0

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