https://bugs.kde.org/show_bug.cgi?id=400987
Kyle Tirak <lonefen...@gmail.com> changed:
What |Removed |Added
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CC| |lonefen...@gmail.com
--- Comment #51 from Kyle Tirak <lonefen...@gmail.com> ---
(In reply to Brian from comment #41)
> (In reply to Roman Gilg from comment #39)
> > I'm not able to reproduce it. Is there a way to reproduce it consistently? I
> > tried method in comment 13, but didn't fail for me.
>
> Been doing testing and i think what might be happening is the window below
> is randomly getting input such as mouse clicks (the desktop?), leading to
> kwin mistakenly thinking you clicked something else, and therefor stopping
> you from inputing text. Meanwhile kwin renders the last thing the window was
> showing, leading to the still content seen.
>
> This surface glitching seems to happen most often with Firefox in Xwayland.
> In my experience when it happens, dialogs will open but not show, but if you
> use kwin's present window hotcorner you can see that it did infact open and
> that it's artifacted and invisble.
>
> Interestingly i just had the surface glitching happen randomly when
> downloading a file. The dialog opened, but it was artifacted and almost
> fully invisible, yet i could still click on it's titlebar.
>
> As a matter of fact, i know extremely similar behavior to this can be
> reproduced easily if you open Firefox with it's Wayland backend enabled. You
> will not only see tons of artfacting and misplaced UI elements should you
> move it or interact with it, but you will also find that some of your clicks
> are not registered and that windows below it are clipped up through it,
> giving you a mangled mess.
This sounds similar to the issue I've seen for a long time. The easiest way to
reproduce this behavior for me is to:
1. Open one XWayland application (e.g. Thunderbird) and minimize it
2. Open another XWayland application (e.g. VLC)
3. In the second XWayland application, hammer on a menu bar option (e.g. in VLC
you could continuously click on the Help menu to activate and deactivate the
menu). You should be able to see invisible activations of the menu.
This only happens for me when I have an XWayland window minimized. It also
seems to stop happening with "Keep Window Thumbnails" set to "Always".
Note that if needing to turn off the "Always" setting to reproduce this, the
minimized XWayland window needs to be minimized *after* changing the setting
off of "Always".
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