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I've recently observed an issue in Okular (but not sure how long has this been there, as I haven't used Plasma for a while), at least when reading PDF documents.
After zooming out, there is supposed to be blank/black boarders on left and right of the PDF content. However, it now shows the leftovers of what was there previously. The leftovers generally gradually fades after scrolling for a while; at times, they would blink/flash. It appears the connection between pages also have the same issue.
By "leftovers", I mean literally anything that was there. It can be the document content, can be the toolbar, can be another window, etc.
I also suspect it's not an issue "of" Okular, partly confirmed because screenshot and screencast won't see it -- they simply show black for those parts.
So please see this photo for the behaviour: https://imgur.com/a/btIMnoZ
(Yes, I have to take a photo to capture it.)
Any ideas what caused this, and how to fix it?
(I guess graphic driver?)
My laptop is Lenovo Yoga 14s 2021, with Intel Core i5-1135G7. I'm currently on Plasma 6, with the following system information:
Operating System: Arch Linux
KDE Plasma Version: 6.2.5
KDE Frameworks Version: 6.10.0
Qt Version: 6.8.1
Kernel Version: 6.12.10-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 8 × 11th Gen Intel® Core™ i5-1135G7 @ 2.40GHz
Memory: 15.4 GiB of RAM
Graphics Processor: Mesa Intel® Iris® Xe Graphics
Manufacturer: LENOVO
Product Name: 82G2
System Version: Yoga 14sITL 2021Offline