| Summary: | alt-tabbing after a media player was used in fullscreen and then quitted or put in windowed result in empty previews for Firefox and sometimes Thunderbird | ||
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| Product: | [Plasma] kwin | Reporter: | Porkepix <porkepix> |
| Component: | tabbox | Assignee: | KWin default assignee <kwin-bugs-null> |
| Status: | REPORTED --- | ||
| Severity: | normal | ||
| Priority: | NOR | ||
| Version First Reported In: | master | ||
| Target Milestone: | --- | ||
| Platform: | Other | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed/Implemented In: | ||
| Sentry Crash Report: | |||
| Attachments: |
Screenshot of a messed-up preview for Firefox
Screenshot with both Firefox and Thunderbird |
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Created attachment 156528 [details]
Screenshot with both Firefox and Thunderbird
Additional screenshot, where we can see that Firefox preview is completely empty while Thunderbird have the window decoration but everything else is empty.
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Created attachment 156455 [details] Screenshot of a messed-up preview for Firefox STEPS TO REPRODUCE 1. Open Firefox and Thunderbird 2. Play whatever video in mpv, and switch mpv to fullscreen. I don't know why, but in such modes, task switcher doesn't show window previews anymore but only big icons. (I'm btw curious why most applications doesn't shows preview in such situations - and even stranger, GIMP present a pseudo-preview, showing the picture we work on, but not the window itself) 3. Escape full screen or quit mpv. Firefox and sometimes Thunderbird previews will be messed up as visible in the joined screen. When Thunderbird's one is messed up, hovering it in the task switcher fixes the preview. For Firefox, the only way is to switch to the application completely. OBSERVED RESULT Messed-up previews. EXPECTED RESULT Previews shouldn't be messed up. SOFTWARE/OS VERSIONS ArchLinux Linux/KDE Plasma: 5.27.0 (available in About System) I'm not seeing an "About System", where should it be looked for? KDE Plasma Version: KDE Frameworks Version: Qt Version: