On Thu, 6 May 2021 at 02:21, Jason H <jh...@gmx.com> wrote:
> I use mainly Mac and Android and I don't see these issues, however the > Windows 64 experience is very crunchy. I was asked to make a simple serial > port monitor. I developed on my mac. It's solid. > It's got QML UI using Rows, Columns, Text, TextEdits (Controls v2), and a > ComboBox (Controls v2) for selecting the serial port. > > However, I've tried it on 2 HP laptops: > - The first shows triangular artifacts, like a GL triangle is glitching, > but the triangle is very acute, and fleeting. > > - The other one doesn't glitch with the triangle, it redraws the > background then draws on top of it (as it should). But here's the crazy > thing, it's got a rhythm like a heart beat like .....|.|;.....|.|; where > the | indicate the text fields disappearing, reappearing. (so in one cycle > the controls flicker twice with a short pause between them, and. along pose > separating them) One cycle is on the order of about 2 seconds. > > Nothing in the UI falls into this pattern. The serial port stuff is async. > > How do I fix this? > > > > Does it look like this: https://bugreports.qt.io/browse/QTBUG-49866 I was never able to fix it, but it only affected a Intel CPU that we only had in a couple of development PCs.
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