https://bugs.kde.org/show_bug.cgi?id=441368
Bug ID: 441368
Summary: Canvas displays black when changing frames in 5.0
beta1 - kubuntu
Product: krita
Version: 5.0.0-beta1
Platform: Kubuntu Packages
OS: Linux
Status: REPORTED
Keywords: regression
Severity: normal
Priority: NOR
Component: OpenGL Canvas
Assignee: krita-bugs-n...@kde.org
Reporter: wojt...@gmail.com
Target Milestone: ---
Created attachment 140950
--> https://bugs.kde.org/attachment.cgi?id=140950&action=edit
Displaying canvas fails when went loading existing frame
SUMMARY
Marked as OpenGL, but also related to Animation. OpenGL fails on kubuntu 20.04
when displayed frame is changed, and other existing frame needs to get loaded.
You can create new frames and draw on them, but going back to any of them
causes the whole screen to go black (screenshot attached).
The data is still there, and is displayed properly in the layers docker, but
the only way to fix displaying the canvas is to reopen a document.
Bug is Linux, or KDE Plasma specific - I confirmed it works well on Windows 10.
STEPS TO REPRODUCE
1. Create a new animation document
2. Paint two frames in one layer
3. Go back to the first frame
OBSERVED RESULT
Black canvas as shown in screenshot
SOFTWARE/OS VERSIONS
Operating System: Kubuntu 20.04
KDE Plasma Version: 5.18.5
KDE Frameworks Version: 5.68.0
Qt Version: 5.12.8
Kernel Version: 5.4.0-81-generic
OS Type: 64-bit
Processors: 16 × AMD Ryzen 7 2700 Eight-Core Processor
Memory: 31,4 GiB
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