Bug 423574

Summary: Contrast renders grey video saturation makes less color
Product: [Applications] kdenlive Reporter: FilanysZ <gercadee>
Component: Effects & TransitionsAssignee: Vincent PINON <vpinon>
Status: RESOLVED WORKSFORME    
Severity: major CC: fritzibaby, julius.kuenzel
Priority: NOR Flags: fritzibaby: timeline_corruption+
Version: 20.04.1   
Target Milestone: ---   
Platform: Microsoft Windows   
OS: Microsoft Windows   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description FilanysZ 2020-06-27 09:29:04 UTC 
SUMMARY
Using Contrast effect causes rendered video to be completly greyed out. and saturation causes the video to be colorless so b&W video.

this happened since windows 10 update KB4560959 wich can't be uninstalled (security update) Kdenlive 19 same issue

STEPS TO REPRODUCE
1. render video with contrast effect
2. render video with saturation effect
3. Contrast will give full greyed out video, saturation will make video B&W greyscale

OBSERVED RESULT


EXPECTED RESULT


SOFTWARE/OS VERSIONS
Windows: 10
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
Comment 1 FilanysZ 2020-06-27 09:29:56 UTC 
I now use levels and Technicolor as alternative wich works fine
Comment 2 emohr 2020-07-18 13:33:52 UTC 
Please untick "parallel processing" in the render setting and try again.
Comment 3 Julius Künzel 2021-02-25 19:19:22 UTC 
(In reply to emohr from comment #2)
> Please untick "parallel processing" in the render setting and try again.

Check whether the tip above fixes your problem?
Please test also if this still occurs with the latest version (https://kdenlive.org/en/download/)
Comment 4 Bug Janitor Service 2021-03-12 04:33:38 UTC 
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

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

Thank you for helping us make KDE software even better for everyone!
Comment 5 Bug Janitor Service 2021-03-27 04:33:41 UTC 
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!