https://bugs.kde.org/show_bug.cgi?id=419399
Bug ID: 419399
Summary: Laggy interface with kinetic scrolling and canvas and
UI glitches.
Product: krita
Version: git master
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Usability
Assignee: krita-bugs-n...@kde.org
Reporter: rgbe...@gmail.com
Target Milestone: ---
Created attachment 127097
--> https://bugs.kde.org/attachment.cgi?id=127097&action=edit
Screenshot of blacked out presets.
SUMMARY
With the git Next build of krita 4.30 and in the master branch build via git,
there is stutter and lag when using kinetic scrolling in the dockers and the
interface. The most noticeable is when scrolling in the dockers or preset
menus.
Any zooming, on the canvas, in and out is choppy as well; there is no smooth
transition/animation.
When resizing the brush size via the keyboard and pen input, the animation
stutters and is laggy as well. Adjustments made using the value bars with the
mouse behaves the same. The reference image opacity and saturation bars are the
worst.
In the preset docker and in the brush editor, several of the preset
images/previews are blacked out. And when opening the "chose preset" button on
the top glitches and shows the painting/image before the preset images appear.
The preset images are all the default ones and this issue is not in the
previous versions/builds of krita.
Then when saving manually, the save time is unusually long.
All this with the OpenGL enabled.
STEPS TO REPRODUCE
1. Any time krita version 4.30 or git master is opened the interface and
blacked out icons are present.
2. Scrolling in dockers or resize bar animations stutter or lag out when
changing.
3. Saving the document takes a very long time to finish.
OBSERVED RESULT
Laggy interface and poor performance.
Missing icon images and unresponsive controls every time.
EXPECTED RESULT
A smooth working interface and tools, especially when the previous version, or
pre-update did not suffer from these issues.
SOFTWARE/OS VERSIONS
Operating System: Gentoo Linux
KDE Plasma Version: 5.18.3
KDE Frameworks Version: 5.68.0
Qt Version: 5.14.1
Kernel Version: 5.5.3-gentoo-x86_64
OS Type: 64-bit
Processors: 12 × Intel® Core™ i7-5820K CPU @ 3.30GHz
Memory: 15.5 GiB of RAM
ADDITIONAL INFORMATION
I had not had any changes on my system except to upgrade to the newest
kde-frameworks version 5.68.0. But once I updated my git version I could not go
back to what I had built before (which worked fine). The build started to throw
errors with cmake and now I can no longer build krita via git on my system. So
right now I am using the krita appimages but the same issues are present in
Next build as well.
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