https://bugs.kde.org/show_bug.cgi?id=460404
--- Comment #13 from Simon Vogl <[email protected]> --- (In reply to Dan from comment #12) > (In reply to Simon Vogl from comment #11) > > > OK, looks like we indeed face the same issue. > > Now the question is why is there a slowdown when SceneGraphBackend under > > [QtQuickRendererSettings] is not set to any value / doesn't exist? > > Good question. but I also tested without SceneGraphBackend and it works fine > here. > > When I had the problem, SceneGraphBackend was set to "software", but I don't > remember setting it to "software" (since it was working with 5.25, maybe > Plasma 5.26 set it after the upgrade for some reason?). Well yea, the warning about software rendering is gone on "Automatic" for me as well, the performance regression however is still there. You likely won't even notice it in normal usage, its mainly noticeable in synthetic tests like measuring how long certain QtQuick apps take to respond. E.g. running the command "time konsole -e" takes ~75% longer to complete on "Automatic" vs. "OpenGL"/"Software" (~70ms vs ~120ms) What does annoy me is that I have noticeable animation slowdowns on my Desktop 165Hz screen on "Automatic". -- You are receiving this mail because: You are watching all bug changes.
