Bug 111874 - Regression: glitch in fade->smoothly transition in 5.4 wrt 5.3 (linux, intel graphics)
Summary: Regression: glitch in fade->smoothly transition in 5.4 wrt 5.3 (linux, intel ...
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Impress (show other bugs)
Version:
(earliest affected)
5.4.0.3 release
Hardware: All Linux (All)
: medium minor
Assignee: Not Assigned
URL:
Whiteboard:
Keywords: bibisectRequest, regression
: 115650 (view as bug list)
Depends on:
Blocks: Slide-Transitions
  Show dependency treegraph
 
Reported: 2017-08-17 08:25 UTC by sergio.callegari
Modified: 2018-07-17 14:31 UTC (History)
4 users (show)

See Also:
Crash report or crash signature:


Attachments
Test case (289.10 KB, application/vnd.oasis.opendocument.presentation)
2017-08-17 08:42 UTC, sergio.callegari
Details
Screen recording LibO 5.3 (424.44 KB, video/mp4)
2017-08-17 11:43 UTC, sergio.callegari
Details
Screen recording LibO 5.4 (382.35 KB, video/mp4)
2017-08-17 11:43 UTC, sergio.callegari
Details
camera recording LibO 5.4 (494.10 KB, video/mp4)
2017-08-17 12:39 UTC, sergio.callegari
Details
Camera recording LibO 5.3 (527.51 KB, video/mp4)
2017-08-17 12:39 UTC, sergio.callegari
Details

Note You need to log in before you can comment on or make changes to this bug.
Description sergio.callegari 2017-08-17 08:25:42 UTC
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
Comment 1 sergio.callegari 2017-08-17 08:42:38 UTC
Created attachment 135609 [details]
Test case

To test:

1) please play the presentation multiple times, as the issue is erratic (but frequent enough to occur a few times in a realistic presentation with 20-40 slides).

2) note that the issue seems to occur more frequently (at all) only if the presentation contains images or other graphical elements.
Comment 2 Xisco Faulí 2017-08-17 10:57:48 UTC
Could you please create a screencast showing the problem?
Comment 3 sergio.callegari 2017-08-17 11:43:26 UTC
Created attachment 135615 [details]
Screen recording LibO 5.3
Comment 4 sergio.callegari 2017-08-17 11:43:53 UTC
Created attachment 135616 [details]
Screen recording LibO 5.4
Comment 5 sergio.callegari 2017-08-17 11:44:47 UTC
... and here the matter becomes "interesting". Because with simplescreenrecording on, the glitch appears with LibO 5.3 but not with 5.4, just the opposite of what I see when the recording is off...
Comment 6 sergio.callegari 2017-08-17 12:39:22 UTC
Created attachment 135617 [details]
camera recording LibO 5.4
Comment 7 sergio.callegari 2017-08-17 12:39:54 UTC
Created attachment 135618 [details]
Camera recording LibO 5.3
Comment 8 sergio.callegari 2017-08-17 12:41:02 UTC
While you can correctly see the issue when pointing a mobile phone camera at the screen. Here, you see the glitch with 5.4 and not with 5.3.
Comment 9 Jean-Baptiste Faure 2017-08-19 11:40:36 UTC
It would be better if your screencast was done with the test case you provided.

Best regards. JBF
Comment 10 sergio.callegari 2017-08-19 13:06:37 UTC
I know... but I had erased my test case, had an adsl failure and could not re-download it when I had time to test, so I used a set of slides I had at hand to prepare the recording... Sorry about that.
Comment 11 Buovjaga 2017-08-31 19:21:50 UTC
I repro on the first try. I also have intel graphics (Skylake)

Arch Linux 64-bit, KDE Plasma 5
Version: 6.0.0.0.alpha0+
Build ID: 4082b5874adddedf8332fe977b6bb47b6949b302
CPU threads: 8; OS: Linux 4.12; UI render: default; VCL: kde4; 
Locale: fi-FI (fi_FI.UTF-8); Calc: group
Built on August 31st 2017
Comment 12 Buovjaga 2018-03-07 16:05:49 UTC
*** Bug 115650 has been marked as a duplicate of this bug. ***
Comment 13 Buovjaga 2018-07-17 14:31:18 UTC
(In reply to Buovjaga from comment #11)
> I repro on the first try. I also have intel graphics (Skylake)
> 
> Arch Linux 64-bit, KDE Plasma 5
> Version: 6.0.0.0.alpha0+
> Build ID: 4082b5874adddedf8332fe977b6bb47b6949b302
> CPU threads: 8; OS: Linux 4.12; UI render: default; VCL: kde4; 
> Locale: fi-FI (fi_FI.UTF-8); Calc: group
> Built on August 31st 2017

Funny, now I do not reproduce this (with Sergio's file), but there is a new bug in town: bug 118649
Sergio might want to re-test and comment on the latest state.

Arch Linux 64-bit
Version: 6.0.5.2
Build ID: 6.0.5-1
CPU threads: 8; OS: Linux 4.17; UI render: default; VCL: kde4; 
Locale: fi-FI (fi_FI.UTF-8); Calc: group

Arch Linux 64-bit
Version: 6.2.0.0.alpha0+
Build ID: 860a9daf2b45942a4b10ff22d36aa3fe29be19f4
CPU threads: 8; OS: Linux 4.17; UI render: default; VCL: gtk3; 
Locale: fi-FI (fi_FI.UTF-8); Calc: group threaded
Built on July 14th 2018