[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=78703

Buovjaga  changed:

   What|Removed |Added

 Resolution|FIXED   |WORKSFORME

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Rene Sedmik  changed:

   What|Removed |Added

 Resolution|--- |FIXED
 Status|NEW |RESOLVED

--- Comment #42 from Rene Sedmik  ---
On LO 7.5.7.1 the bug is not present any more and the minimal test case works
as expected.

I cannot say exactly what version resolved it, though.

Marking as resolved. Thanks to all who have contributed!

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--- Comment #41 from QA Administrators  ---
Dear Rene Sedmik,

To make sure we're focusing on the bugs that affect our users today,
LibreOffice QA is asking bug reporters and confirmers to retest open, confirmed
bugs which have not been touched for over a year.

There have been thousands of bug fixes and commits since anyone checked on this
bug report. During that time, it's possible that the bug has been fixed, or the
details of the problem have changed. We'd really appreciate your help in
getting confirmation that the bug is still present.

If you have time, please do the following:

Test to see if the bug is still present with the latest version of LibreOffice
from https://www.libreoffice.org/download/

If the bug is present, please leave a comment that includes the information
from Help - About LibreOffice.

If the bug is NOT present, please set the bug's Status field to
RESOLVED-WORKSFORME and leave a comment that includes the information from Help
- About LibreOffice.

Please DO NOT

Update the version field
Reply via email (please reply directly on the bug tracker)
Set the bug's Status field to RESOLVED - FIXED (this status has a particular
meaning that is not 
appropriate in this case)


If you want to do more to help you can test to see if your issue is a
REGRESSION. To do so:
1. Download and install oldest version of LibreOffice (usually 3.3 unless your
bug pertains to a feature added after 3.3) from
https://downloadarchive.documentfoundation.org/libreoffice/old/

2. Test your bug
3. Leave a comment with your results.
4a. If the bug was present with 3.3 - set version to 'inherited from OOo';
4b. If the bug was not present in 3.3 - add 'regression' to keyword


Feel free to come ask questions or to say hello in our QA chat:
https://web.libera.chat/?settings=#libreoffice-qa

Thank you for helping us make LibreOffice even better for everyone!

Warm Regards,
QA Team

MassPing-UntouchedBug

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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https://bugs.documentfoundation.org/show_bug.cgi?id=78703

--- Comment #40 from Rafael Lima  ---
It is working on my machine using LO 7.3 alpha (build from Oct 14) and the kf5
backend. I used the "minimal test case" and it worked as expected, without the
initial flash.

Version: 7.3.0.0.alpha0+ / LibreOffice Community
Build ID: c998691e22ceda15c89d55cf7005201f0392dadb
CPU threads: 16; OS: Linux 5.11; UI render: default; VCL: kf5 (cairo+xcb)
Locale: pt-BR (pt_BR.UTF-8); UI: en-US
TinderBox: Linux-rpm_deb-x86_64@86-TDF, Branch:master, Time:
2021-10-14_11:54:20
Calc: threaded

Maybe a Windows-only issue?

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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https://bugs.documentfoundation.org/show_bug.cgi?id=78703

Buovjaga  changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEW
 OS|Linux (All) |All
 Ever confirmed|0   |1

--- Comment #39 from Buovjaga  ---
Seems we had earlier Windows confirmations, but OS was not changed to All.

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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Telesto  changed:

   What|Removed |Added

 Status|RESOLVED|UNCONFIRMED
 Resolution|WORKSFORME  |---
 Ever confirmed|1   |0

--- Comment #38 from Telesto  ---
I still see a flash(on Windows)
Version: 7.3.0.0.alpha0+ (x64) / LibreOffice Community
Build ID: 93115d2c54d645bcf2f80fde325e3ede39dee4d5
CPU threads: 4; OS: Windows 6.3 Build 9600; UI render: Skia/Raster; VCL: win
Locale: nl-NL (nl_NL); UI: en-US
Calc: CL

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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Rene Sedmik  changed:

   What|Removed |Added

 Resolution|--- |WORKSFORME
 Status|NEEDINFO|RESOLVED

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--- Comment #37 from Rene Sedmik  ---
In response to Comment #36.

In LibreOffice 7.062 the minimal test case works without problems.
The problem seems to be solved

Thanks!

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--- Comment #36 from QA Administrators  ---
Dear Rene Sedmik,

This bug has been in NEEDINFO status with no change for at least
6 months. Please provide the requested information as soon as
possible and mark the bug as UNCONFIRMED. Due to regular bug
tracker maintenance, if the bug is still in NEEDINFO status with
no change in 30 days the QA team will close the bug as INSUFFICIENTDATA
due to lack of needed information.

For more information about our NEEDINFO policy please read the
wiki located here:
https://wiki.documentfoundation.org/QA/Bugzilla/Fields/Status/NEEDINFO

If you have already provided the requested information, please
mark the bug as UNCONFIRMED so that the QA team knows that the
bug is ready to be confirmed.

Thank you for helping us make LibreOffice even better for everyone!

Warm Regards,
QA Team

MassPing-NeedInfo-Ping

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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Timur  changed:

   What|Removed |Added

 Status|NEW |NEEDINFO
   See Also||https://bugs.documentfounda
   ||tion.org/show_bug.cgi?id=91
   ||456
   Severity|normal  |minor

--- Comment #35 from Timur  ---
This is older bug, not obvious. Please retest. Please see bug 91456.

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=78703

--- Comment #34 from QA Administrators  ---
** Please read this message in its entirety before responding **

To make sure we're focusing on the bugs that affect our users today,
LibreOffice QA is asking bug reporters and confirmers to retest open, confirmed
bugs which have not been touched for over a year.

There have been thousands of bug fixes and commits since anyone checked on this
bug report. During that time, it's possible that the bug has been fixed, or the
details of the problem have changed. We'd really appreciate your help in
getting confirmation that the bug is still present.

If you have time, please do the following:

Test to see if the bug is still present with the latest version of LibreOffice
from https://www.libreoffice.org/download/

If the bug is present, please leave a comment that includes the information
from Help - About LibreOffice.

If the bug is NOT present, please set the bug's Status field to
RESOLVED-WORKSFORME and leave a comment that includes the information from Help
- About LibreOffice.

Please DO NOT

Update the version field
Reply via email (please reply directly on the bug tracker)
Set the bug's Status field to RESOLVED - FIXED (this status has a particular
meaning that is not 
appropriate in this case)


If you want to do more to help you can test to see if your issue is a
REGRESSION. To do so:
1. Download and install oldest version of LibreOffice (usually 3.3 unless your
bug pertains to a feature added after 3.3) from
http://downloadarchive.documentfoundation.org/libreoffice/old/

2. Test your bug
3. Leave a comment with your results.
4a. If the bug was present with 3.3 - set version to 'inherited from OOo';
4b. If the bug was not present in 3.3 - add 'regression' to keyword


Feel free to come ask questions or to say hello in our QA chat:
https://kiwiirc.com/nextclient/irc.freenode.net/#libreoffice-qa

Thank you for helping us make LibreOffice even better for everyone!

Warm Regards,
QA Team

MassPing-UntouchedBug

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=78703

--- Comment #33 from jebsoluti...@gmail.com ---
Same symptoms in 5.3.0 alpha 1.  On windows 10 64bit and Lubuntu 16.04 64 bit.

The very last step of the fade-in for a split second shows what's underneath. 
Seems like a weird Z-layering/transparency issue.

E.g. transitioning from Slide A to Slide B with fade smoothly looks like:
A + B @ 0% transparency
A + B @ 10% transparency
A + B @ 20% transparency
A + B @ 30% transparency
A + B @ 40% transparency
A + B @ 50% transparency
A + B @ 60% transparency
A + B @ 70% transparency
A + B @ 80% transparency
A + B @ 90% transparency
A + B @ 0% transparency  <-- zero percent transparency ??
B @ 100% transparency 

For a split second B disappears so you get a "Flash" of the previous slide 
below it.  

I think these bugs slide/animation transition problems are all the same:

slide flash
https://bugs.documentfoundation.org/show_bug.cgi?id=73273

slide transition
https://bugs.documentfoundation.org/show_bug.cgi?id=95479

Animation problem:
https://bugs.documentfoundation.org/show_bug.cgi?id=47341

There are many other duplicates of this bug.  I really hope this can get some
attention.

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=78703

--- Comment #31 from pieter kristensen  ---
On this Windows machine, (32 bit W10) the problem has become less. The flash is
not white any more but at the end of the transition there is a distorsion. All
3d transitions do this.

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=78703

Jean-Baptiste Faure  changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEW
 CC||jbfa...@libreoffice.org
 Ever confirmed|0   |1

--- Comment #30 from Jean-Baptiste Faure  ---
Not reproducible for me with the minimal test case with LO 5.0.5.0.0+ under
Ubuntu 15.10 x86-64.
That said the status unconfirmed is wrong because this bug has been confirmed
(see history). Set back to NEW.

Best regards. JBF

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=78703

Robinson Tryon (qubit)  changed:

   What|Removed |Added

   Keywords||needAdvice
 CC||qu...@runcibility.com
 Whiteboard|BSA NeedAdvice  |BSA

--- Comment #29 from Robinson Tryon (qubit)  ---
Migrating Whiteboard tags to Keywords: (needAdvice)

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=78703

Beluga  changed:

   What|Removed |Added

 CC||todven...@suomi24.fi

--- Comment #28 from Beluga  ---
(In reply to roumanet from comment #27)
> As my english wasn't very clear (sorry!) here is a better explanation :
> 
> [SlideA] -- SlideA mixed with SlideB -- [SlideB] [SlideA a very short time]
> [SlideB]

No problem here.

Ubuntu 15.10 64-bit 
Version: 5.0.3.2
Build ID: 1:5.0.3~rc2-0ubuntu1
Locale: en-US (en_US.UTF-8)

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=78703

--- Comment #27 from roumanet  ---
As my english wasn't very clear (sorry!) here is a better explanation :

[SlideA] -- SlideA mixed with SlideB -- [SlideB] [SlideA a very short time]
[SlideB]

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=78703

--- Comment #25 from roumanet  ---
Created attachment 121024
  --> https://bugs.documentfoundation.org/attachment.cgi?id=121024=edit
square while transitions (flashing)

I've made some new tests : in fact, the transition occurs and at the end, the
previous slide appears one frame !
on the attached slides, each square is removed on each slide, but while
transition, near the last time of it, the previous slide (say 'A') with square
present where it was removed on new slide (say 'B').

The strange thing, is I can't record it (with NCH Debut software), like this
flash occurs between two synchronisation screen

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=78703

roumanet  changed:

   What|Removed |Added

 Status|RESOLVED|REOPENED
 Resolution|WORKSFORME  |---

--- Comment #24 from roumanet  ---
Sorry, bad bug number (I'm following two bugs :( )
It still a small flash from transition to final slide... so it's not solved !

(I've to search for the second bug with colors in transitions that are
inverted)
However, there is a causal effet : if colors are inverted, at the end of the
transition, it could show a white flash.
For now, it still a flash but not white : I would say, like a snapshot with a
different scale or few pixels offset.

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=78703

Joel Madero  changed:

   What|Removed |Added

 Status|REOPENED|UNCONFIRMED
 Ever confirmed|1   |0

--- Comment #26 from Joel Madero  ---
Wrong status.

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=78703

tommy27  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |WORKSFORME

--- Comment #23 from tommy27  ---
nice to hear that.
set status to RESOLVED WORKSFORME

other users are encouraged to retest.
if the fix is verified we could do a reverse bibisect in order to obtain a
4.1.x backport

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=78703

--- Comment #22 from roumanet  ---
Seems to be solved in 5.2 alpha1 release of LibreOffice.
Version: 5.2.0.0.alpha0+
Build ID: 1ed6d1423c7cffa5403dad69a9946ec790a374f2
Threads 2; Ver: Windows 6.19; Render: GL; 

TinderBox: Win-x86@42, Branch:master, Time: 2015-11-29_01:57:00
Locale: fr-FR (fr_FR)

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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https://bugs.documentfoundation.org/show_bug.cgi?id=78703

Cor Nouws  changed:

   What|Removed |Added

 Blocks||94691

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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https://bugs.documentfoundation.org/show_bug.cgi?id=78703

Cor Nouws  changed:

   What|Removed |Added

 Blocks|94691   |

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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https://bugs.documentfoundation.org/show_bug.cgi?id=78703

roumanet  changed:

   What|Removed |Added

 CC||go...@free.fr

--- Comment #21 from roumanet  ---
Created attachment 120780
  --> https://bugs.documentfoundation.org/attachment.cgi?id=120780=edit
some transitions impacted by the color's bug

I've tested some of transitions and record a little movie (see attachement)

I'm running on Win10 family 64bits, with Intel+Radeon videocard (HP4740s
notebook)
I've tested with 5.0.(1 to 3) and with Libreoffice 5.1.0 alpha release
(november, 24th)
Version: 5.1.0.0.alpha1 (x64)
Build ID: 0b48731919433e46e4fda7e5a5ca27c08c28b981
Locale : fr-FR (fr_FR)

As you'll see, forms and texts colors changes while transition occurs and get
back at the end of effect.
Not all transitions are impacted but the most important one (Fade smoothly)
cause problem (especially when showing educational curses to my students or
when trying to record animation for education purpose)

Graphic card detail : AMD Radeon HD 7650M

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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https://bugs.documentfoundation.org/show_bug.cgi?id=78703

Yousuf (Jay) Philips  changed:

   What|Removed |Added

 Blocks||94691

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=78703

--- Comment #20 from Jean-François Fortin Tam  ---
Created attachment 118470
  --> https://bugs.documentfoundation.org/attachment.cgi?id=118470=edit
screencast demonstrating the issue

FWIW, I'm also seeing this on Fedora 22 64-bit with open-source "radeonsi"
drivers for the Radeon HD 7770, running GNOME Shell 3.16 on X11.

This is with LibreOffice 5.0.1.2 (official RPMs downloaded from the LibreOffice
website)

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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https://bugs.documentfoundation.org/show_bug.cgi?id=78703

--- Comment #19 from pieter kristensen pieterkristen...@gmail.com ---
I am testing 5.0.0.2 Kubuntu 14.04 32 bit.

There has always been a white flash during 3d transitions on this computer.
With 5.0.0.2 the flash perhaps got a little shorter.
But it clearly is still there.

The cpu is not a speed monster on this machine
http://www.cpubenchmark.net/cpu_lookup.php?cpu=Intel+Celeron+M+530+%40+1.73GHzid=705
(single core) it is possible that that has something to do with it.

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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https://bugs.documentfoundation.org/show_bug.cgi?id=78703

Michael Stahl mst...@redhat.com changed:

   What|Removed |Added

  Attachment #99209|application/octet-stream|application/vnd.oasis.opend
  mime type||ocument.presentation

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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https://bugs.documentfoundation.org/show_bug.cgi?id=78703

--- Comment #18 from ablumer ablu...@bju.edu ---
Just an update. I am now using 4.4.0.3. The flash still occurs. I have also
seen it occur when cpufreq is set to maximum CPU frequency, but it does seem to
happen less often. So I am still suspecting a race of some kind.

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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https://bugs.documentfoundation.org/show_bug.cgi?id=78703

--- Comment #16 from pieter kristensen pieterkristen...@gmail.com ---
(In reply to pieter kristensen from comment #15)
 (In reply to ablumer from comment #14)
  I just installed 4.3.3.2 and the white flash just happened.
  
  I have a theory about what is happening. Through the year and a half that
  I've had to do presentations regularly, I have usually seen this problem,
  but as I went from one version of LibreOffice to the next, its behavior
  changed slightly. E.g., for 4.3.2.2 and 4.3.3.2, the flash does not usually
  occur, but for earlier versions, it usually did occur.
  
  Because of the nature of the variations, I think that the performance of my
  computer may be a factor. When I use a cpufreq applet to keep the processor
  running full speed, I do not believe I have seen the flash occur. So I
  suspect there is a race between drawing in a buffer and the graphics code
  displaying it. Perhaps the buffer is being displayed before it has been
  filled, and thus we see a flash.
 
 On my laptop (Compaq 6720s - Intel GME965/GLE960 Integrated Graphics 
 Controller, Kubuntu 14.04 32 bit, LO 4.4.0.3) - I have this white flash 
 effect too. The flash is very short but rather intens.

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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https://bugs.documentfoundation.org/show_bug.cgi?id=78703

--- Comment #15 from pieter kristensen pieterkristen...@gmail.com ---
(In reply to ablumer from comment #14)
 I just installed 4.3.3.2 and the white flash just happened.
 
 I have a theory about what is happening. Through the year and a half that
 I've had to do presentations regularly, I have usually seen this problem,
 but as I went from one version of LibreOffice to the next, its behavior
 changed slightly. E.g., for 4.3.2.2 and 4.3.3.2, the flash does not usually
 occur, but for earlier versions, it usually did occur.
 
 Because of the nature of the variations, I think that the performance of my
 computer may be a factor. When I use a cpufreq applet to keep the processor
 running full speed, I do not believe I have seen the flash occur. So I
 suspect there is a race between drawing in a buffer and the graphics code
 displaying it. Perhaps the buffer is being displayed before it has been
 filled, and thus we see a flash.

On my laptop (Compa

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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https://bugs.documentfoundation.org/show_bug.cgi?id=78703

--- Comment #17 from pieter kristensen pieterkristen...@gmail.com ---
 On my laptop (Compaq 6720s - Intel GME965/GLE960 Integrated Graphics 
 Controller, Kubuntu 14.04 32 bit, LO 4.4.0.3) - I have this white flash 
 effect too. The flash is very short but rather intens.

Sorry, this went wrong. This is the more elegant way to say something here.

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=78703

--- Comment #14 from ablumer ablu...@bju.edu ---
I just installed 4.3.3.2 and the white flash just happened.

I have a theory about what is happening. Through the year and a half that I've
had to do presentations regularly, I have usually seen this problem, but as I
went from one version of LibreOffice to the next, its behavior changed
slightly. E.g., for 4.3.2.2 and 4.3.3.2, the flash does not usually occur, but
for earlier versions, it usually did occur.

Because of the nature of the variations, I think that the performance of my
computer may be a factor. When I use a cpufreq applet to keep the processor
running full speed, I do not believe I have seen the flash occur. So I suspect
there is a race between drawing in a buffer and the graphics code displaying
it. Perhaps the buffer is being displayed before it has been filled, and thus
we see a flash.

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=78703

Kevin bkdrago...@gmail.com changed:

   What|Removed |Added

 CC||bkdrago...@gmail.com

--- Comment #11 from Kevin bkdrago...@gmail.com ---
LibreOffice 4.2.6.3
Ubuntu 14.04.1 AMD64 (brand-new install)
Dell Latitude E5400
Intel Mobile 4 Series Integrated Graphics

I am also experiencing the same issue with a white flash on slide transitions
when using Fade smoothly.  File format is .ODP.  System is a fresh install on
clean drive, fully up-to-date, and no additional drivers to install.

Just figured I'd add my experience as well since I'm not the only Latitude
E5400 series laptop having this issue.

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=78703

tommy27 ba...@quipo.it changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEW
 Ever confirmed|0   |1

--- Comment #12 from tommy27 ba...@quipo.it ---
set status to NEW because of independent confirmation in previous comment.
has anybody of the reproducing users already tried LO 4.3.2.2? is issue still
there?

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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https://bugs.freedesktop.org/show_bug.cgi?id=78703

--- Comment #13 from Kevin bkdrago...@gmail.com ---
I have not tried LO 4.3.2.2 yet and I am on a time crunch to get this present
done tonight...yay.  However, I will give it a try (after my presentation
tomorrow) on the same file to see if I still have the issue on the newer
version and report back.  For now I am just going without the transitions.

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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ign_christian ign_christ...@yahoo.com changed:

   What|Removed |Added

   See Also||https://bugs.freedesktop.or
   ||g/show_bug.cgi?id=69461

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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https://bugs.freedesktop.org/show_bug.cgi?id=78703

--- Comment #7 from ablumer ablu...@bju.edu ---
I am experiencing the same behavior. I've had to turn off the transitions to
avoid the white flash.

A bit of history that might be helpful. I'm using Linux Mint 17 now. I was
running Linux Mint 16 previously and did not see this problem in LibreOffice
(not exactly sure of the version). I installed OpenOffice at the same time, and
OpenOffice did show the white flash. I upgraded to Linux Mint 17 this summer
and LibreOffice started the flashes. I have received a new laptop since then,
put Linux Mint 17 on it, and it also flashes. This is with LibreOffice 4.2.4.2,
Build ID: 420m0(Build:2)

My current hardware is a Dell Latitude E5440. The OpenGL is provided by Mesa
10.1.3 with the Vendor shown as Intel Open Source Technology Center.

lspci shows: VGA compatible controller: Intel Corporation Haswell-ULT
Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller])

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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https://bugs.freedesktop.org/show_bug.cgi?id=78703

--- Comment #8 from Joel Madero jmadero@gmail.com ---
If this is a regression a bibisect would be nice:


https://wiki.documentfoundation.org/QA/HowToBibisect

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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https://bugs.freedesktop.org/show_bug.cgi?id=78703

--- Comment #9 from ablumer ablu...@bju.edu ---
Further information: I ran 'apitrace trace /usr/bin/loffice' and showed a
couple slides that flash during transition. It produced a ~/soffice.bin.trace
(rather than loffice.bin.trace ? ). I then ran 'glretrace -s /tmp/frame
~/soffice.bin.trace' which produced little PNG thumbnails of all the frames as
it's fading in the slide.

The third frame in the sequence is all white. The two before it look all black.
The one after it is a dark rendition of the slide.

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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https://bugs.freedesktop.org/show_bug.cgi?id=78703

--- Comment #10 from ablumer ablu...@bju.edu ---
I know next to nothing about GL, but I ran the same test above using qapitrace,
a graphical front-end to GL API tracing. qapitrace shows each of the API calls
in sequence, and in frame number 2 (which is the third frame), it is showing
the frame turning white after this API call:

glDrawArrays(GL_TRIANGLES, 0, 6)


It's probably also important to note that because of different screen and slide
aspect ratios, the display puts vertical black bars on either side of the slide
to fill the screen, and the white screen has those black bars on either side.
So it looks as though something really did intend to show an all-white slide.

Here is a list of some of the API calls before that glDrawArrays() (from
'apitrace dump'):

348 glPushMatrix()
349 glDisable(cap = GL_DEPTH_TEST)
350 glBindTexture(target = GL_TEXTURE_2D, texture = 1)
351 glPushMatrix()
352 glScaled(x = 0.8989751098096632, y = 1, z = 1)
353 glEnableClientState(array = GL_VERTEX_ARRAY)
354 glEnableClientState(array = GL_NORMAL_ARRAY)
355 glEnableClientState(array = GL_TEXTURE_COORD_ARRAY)
356 glTexCoordPointer(size = 2, type = GL_DOUBLE, stride = 0, pointer =
blob(96))
357 glNormalPointer(type = GL_DOUBLE, stride = 0, pointer = blob(144))
358 glVertexPointer(size = 3, type = GL_DOUBLE, stride = 0, pointer =
blob(144))
359 glDrawArrays(mode = GL_TRIANGLES, first = 0, count = 6)

I'll keep the trace around. Its over 2MiB so I'm not sure if it can be
uploaded.

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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tommy27 ba...@quipo.it changed:

   What|Removed |Added

   See Also|https://bugs.freedesktop.or |
   |g/show_bug.cgi?id=78761 |

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=78703

Joel Madero jmadero@gmail.com changed:

   What|Removed |Added

 Whiteboard|BSA |BSA NeedAdvice
 CC||jmadero@gmail.com

--- Comment #6 from Joel Madero jmadero@gmail.com ---
Requesting advice - but I believe this is NOTOURBUG. I'll let a developer who
knows a lot more than I do set the status though :)

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=78703

--- Comment #2 from Rene Sedmik rene.sed...@gmx.at ---
Created attachment 99209
  -- https://bugs.freedesktop.org/attachment.cgi?id=99209action=edit
minimal test case

This is a minimal test case file.
Slide transition 'fade smoothly' from a slide with black background to one
without (white).

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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https://bugs.freedesktop.org/show_bug.cgi?id=78703

--- Comment #3 from Rene Sedmik rene.sed...@gmx.at ---
I tested the same on an Ubuntu 13.10 system, with Libreofficce 4.0, also with
Nvidia card but with proprietary drivers. There the glitch did not appear.
Could it be be that this is not a problem of LibreOffice but of glx?

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--- Comment #4 from tommy27 ba...@quipo.it ---
no problem with test case under Win7x64 using LibO 4.2.4.2.

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tommy27 ba...@quipo.it changed:

   What|Removed |Added

   See Also||https://bugs.freedesktop.or
   ||g/show_bug.cgi?id=78761

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[Libreoffice-bugs] [Bug 78703] SLIDESHOW: fading slide transitions start with a white 'flash'

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--- Comment #5 from Rene Sedmik rene.sed...@gmx.at ---
Thanks for the test.
Any suggestions how to track down the source of the error I see? It would be
interesting if someone else could test this under Fedora Linux.

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tommy27 ba...@quipo.it changed:

   What|Removed |Added

 CC||ba...@quipo.it
Summary|SLIDESHOW: fading slide |SLIDESHOW: fading slide
   |transitions start with a|transitions start with a
   |white `flash'   |white 'flash'

--- Comment #1 from tommy27 ba...@quipo.it ---
please upload a simple test case with those slide transitions where you see
that glitch.

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