Bug 432682 - Attempting to preview a fadein/fadeout at a 1480x148 resolution causes a crash
Summary: Attempting to preview a fadein/fadeout at a 1480x148 resolution causes a crash
Status: RESOLVED WORKSFORME
Alias: None
Product: kdenlive
Classification: Applications
Component: Rendering & Export (show other bugs)
Version: 20.12.2
Platform: Microsoft Windows Microsoft Windows
: NOR normal
Target Milestone: ---
Assignee: Jean-Baptiste Mardelle
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-02-09 10:45 UTC by sashkakuhta
Modified: 2021-04-14 04:33 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:
fritzibaby: timeline_corruption+


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Description sashkakuhta 2021-02-09 10:45:44 UTC
SUMMARY
Kdenlive crashes upon attempting to preview a fadein/fadeout when working with a non-standard extra wide resolution. This is not reproducible with a 1920x1080 resolution, nor is it a product of altered screen ratio (16:9 and 10:1 ratios both work fine with 1080p resolution).
I made a video showcasing the steps to reproduce: https://www.youtube.com/watch?v=t2menmuNvjE 

STEPS TO REPRODUCE
1. Proceed to create a new project
2. Add a custom resolution, 1480x148
3. Add some video
4. Add some fadeins/fadeouts
5. Bring the timeline cursor over the fadein/fadeout

OBSERVED RESULT
Kdenlive crashes

EXPECTED RESULT
A preview of the fadeout/fadein is shown.

SOFTWARE/OS VERSIONS
Windows 10; 1909
Kdenlive 20.12.2 standalone
Comment 1 emohr 2021-02-13 19:26:43 UTC
Doing the same steps as you show on the video but on Windows 7. No crash. 

Please let me know which settings you have under: 
- Settings -> OpenGL backend. 
- Settings -> configuration Kdenlive -> playback.
Comment 2 sashkakuhta 2021-02-15 06:59:19 UTC
OpenGL backed is: DirectX (AGNLE)
Playback settings:
- Use GPU processing: off
- Audio backend: SDL
- Audio driver: automatic
- Audio device: default
- Preview volume: 100%
- Use external display: off
- Output device: empty

I also tried the same steps on a Windows 7 machine and indeed, no crash. I'll try with a different Windows 10 machine and report back.
Comment 3 sashkakuhta 2021-02-15 10:03:57 UTC
Tested this sequence of actions on a Windows 10 machine with gen7.5 Intel iGPU, no crash. Well, I suppose something might be wrong with my machine/installation then.
Comment 4 emohr 2021-02-15 10:41:20 UTC
Please update your graphic card driver on the Win10 machine where the crash happens. I assume it’s an Intel graphic card.
Comment 5 sashkakuhta 2021-02-15 10:53:08 UTC
It's a Nvidia GPU. Should've mentioned the hardware configuration:
Machine A: Nvidia GTX 1060, driver 452.06, 3840x2160 screen, crash
Machine B: Nvidia GTS 450, driver 385.41, 1680x1050 screen, OK
Machine C: Intel Cherry Trail iGPU, driver 20.19.15.5144, 1920x1200 screen, OK

I'll try to update the drivers and report back.
Comment 6 sashkakuhta 2021-02-21 03:54:34 UTC
No luck with driver 461.40 and clean kdenlive installation; still crashes on this machine after this unique sequence of actions.
Comment 7 emohr 2021-02-21 17:09:28 UTC
On the machine with the crash: 

- Which OpenGL backend do you have (settings -> OpenGL backend)?
- Do you have set the playback resolution other then 1:1 (Monitor, bottom left)?
- Test: Set the playback to Wasapi/DirectSound/WinMM: which works best? 
- Any different in Audio from the machine who crashes to the other machine?
- Is the audio driver up-to-date?
Comment 8 Julius Künzel 2021-03-15 14:04:59 UTC
(In reply to emohr from comment #7)
> On the machine with the crash: 
> 
> - Which OpenGL backend do you have (settings -> OpenGL backend)?
> - Do you have set the playback resolution other then 1:1 (Monitor, bottom
> left)?
> - Test: Set the playback to Wasapi/DirectSound/WinMM: which works best? 
> - Any different in Audio from the machine who crashes to the other machine?
> - Is the audio driver up-to-date?
Can you please provide the information requested above?
Comment 9 Bug Janitor Service 2021-03-30 04:33:33 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:
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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 10 Bug Janitor Service 2021-04-14 04:33:19 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!