Created attachment 120146 [details]
Just recently upgraded to 184.108.40.206 from 220.127.116.11 and presentations that I created in 18.104.22.168 which had Fade-in slide animations are plagued with a slide flicker. The flicker is a split second flash of the previous slide at the end of the transition. This makes it completely unusable.
I thought it might be an issue with incompatibility between the older version fade-in and the newer one, so I removed the fade-in slide transition from the original and re-created the transition with the new version Fade Smoothly. The new version has the same problem. I have tested many of the transitions and the flicker appears using Fine Dissolve, Fade Through Black, Fade Smoothly, Rochade, Turn around, Turn down – there maybe others that I have not tested but these are for sure.
I'm on an iMac running Yosemite:
Model Name: iMac
Model Identifier: iMac12,2
Processor Name: Intel Core i5
Processor Speed: 2.7 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 6 MB
Memory: 12 GB
Boot ROM Version: IM121.0047.B21
SMC Version (system): 1.72f2
Please provide a test Impress document so that we can attempt to confirm.
I can confirm this bug.
All my slides are unusable, because I just use fading between slides
All is fine with LO 4.7.2. All is wrong in all versions Of LO 5.0 and 5.1
Working with Windows 10 x64
Dear Bug Submitter,
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.
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If you have already provided the requested information, please
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This bug is still present in 5.3.0 alpha 1.
Windows 10 64bit and Lubuntu 16.0.4 64bit.
Say we are transitioning from slide A to slide B using Fade transition with through-black option not checked.
It's like this happens:
Slide A with Slide B at 90% transparency
Slide A with Slide B at 80% transparency
Slide A with Slide B at 70% transparency
Slide A with Slide B at 60% transparency
Slide A with Slide B at 50% transparency
Slide A with Slide B at 40% transparency
Slide A with Slide B at 30% transparency
Slide A with Slide B at 20% transparency
Slide A with Slide B at 10% transparency
Slide A with Slide B at 0% transparency
Slide A with Slide B at 100% transparency <<< ???
For a split second you see the previous slide at the end of the transition. It is repeatable, but not always observable. I will notice it about 70% of the time or more.
It really looks horrible. :(
@PierreC, @jebsolutions :
we need a test file in order to be able to triage this bug correctly through the system. Since you both mention that you are experiencing the same problem as the initial reporter, could one of you please provide a test Impress document in which the problem is visible ? Otherwise, this report will be closed as RESOLVED INSUFFICIENTDATA.
Created attachment 130018 [details]
I can repro it with the example file and OPENGL enabled
Build ID: d0288a482a3dc0f50f535565e4c66a95bb140942
CPU Threads: 4; OS Version: Windows 6.19; UI Render: GL;
TinderBox: Win-x86@42, Branch:master, Time: 2016-12-26_23:25:18
Locale: nl-NL (nl_NL); Calc: CL
Possibly the same as bug 99685?
I think all these flickering/transition bugs go back to the OpenGL enhancements a few versions back. I think the code changes broke compatibility with various OpenGL drivers and this is the result.
My laptop has an intel i7-2620m cpu. By default I'm using the integrated Intel graphics in the CPU. This exhibits all the flickering/transition symptoms.
However...my laptop also has a discrete graphics card. If I switch my laptop to use the NVIDIDA NVS 4200M video card LibreOffice works good.
This explains why some people have the problem, and others don't.
Any easy way to test this is to use VirtualBox and install the VirtualBox guest additions.
Just fyi...everything worked fine in older versions of OpenOffice and LibreOffice so this is a regression bug.
Suggest testing on older Intel, Amd, Nvidia, and virtualbox. Would be nice if we could have a non-broken version. I'm still stuck on using old old versions to work around this bug. :(
I've made some test with my notebook
Widows 10 LO 22.214.171.124 (both x64)
On my notebook, there are two graphic cards : NVIDIA GE FORCE 710M and Intel HD graphics 4000. (latest drivers)
I can choose witch graphic card run with a program.
Both of theses cards can't run OpenGL
If I use the Intel card, the flickering problem is present
If I use the NVidia graphic card, the flickering problem is away.
It doesn't matter if Hardware acceleration is enabled or not.
But Hardware if acceleration is disabled I've no anti-aliasing problem, and some other animation problems are gone away.
Seeing this on the following system:
Linux Mint 19
Kernel Linux 4.15.0-45-generic x86_64
16 GB RAM
Intel® Core™ i5-4210U CPU @ 1.70GHz × 4
Intel HD 4400 Graphics
This flicker happens consistently (although more with the flicker in the middle of the fade, rather than right before the end) on both of the following LibreOffice Impress versions:
Build ID: 98c6a8a1c6c7b144ce3cc729e34964b47ce25d62
CPU threads: 4; OS: Linux 4.15; UI render: default; VCL: gtk3;
Locale: en-US (en_US.UTF-8); UI-Language: en-US
Build ID: 1:6.0.7-0ubuntu0.18.04.2
CPU threads: 4; OS: Linux 4.15; UI render: default; VCL: gtk3;
Locale: en-US (en_US.UTF-8); Calc: group
I've also tried the screen tearing advice here: https://forums.linuxmint.com/viewtopic.php?f=208&t=224942#p1197049 But that didn't make any difference in this case.
FWIW, this problem is also in the latest version of Apache OpenOffice Impress.
Could anyone point me to an archive of an older Impress version that didn't have this trouble? Unfortunately my laptop only has the one video card, so I have no way of switching to nVidia or any other non-Intel graphics chipset.
Found it at https://downloadarchive.documentfoundation.org/libreoffice/old/126.96.36.199/deb/x86_64/LibreOffice_188.8.131.52_Linux_x86-64_deb.tar.gz and tried it out.
Result: I couldn't actually try it out. Launching Impress results in the splash screen coming up for such a brief amount of time that I couldn't even capture it with Peek: https://unix.stackexchange.com/questions/503500/running-an-old-version-of-libreoffice
Since I would like to use this for a production-quality video, I guess I'm out of options until this is fixed...aside from switching to Google Slideshow, which does fade transitions without trouble on the same system. :/
Isn't there some flag I can use somewhere to revert to the old behaviour?