Bug 423563 - PLASMA_USE_QT_SCALING=1 causes Plasma to select a wallpaper appropriate for the logical DPI, not the physical DPI
Summary: PLASMA_USE_QT_SCALING=1 causes Plasma to select a wallpaper appropriate for t...
Status: RESOLVED FIXED
Alias: None
Product: plasmashell
Classification: Plasma
Component: Image Wallpaper (show other bugs)
Version: master
Platform: Other Linux
: NOR normal
Target Milestone: 1.0
Assignee: David Edmundson
URL:
Keywords:
Depends on:
Blocks: 356446
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Reported: 2020-06-26 23:37 UTC by Nate Graham
Modified: 2020-07-01 18:55 UTC (History)
1 user (show)

See Also:
Latest Commit: https://invent.kde.org/plasma/plasma-workspace/-/commit/530b36abb0a0a04958417cf914906fb64ab64062
Version Fixed In: 5.19.3
Sentry Crash Report:

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Description Nate Graham 2020-06-26 23:37:02 UTC 
With PLASMA_USE_QT_SCALING=1 set, the wallpaper chooser selects a wallpaper of an inappropriate size. For example if you have a 3840 x 2160 screen and you use a 2x scale factor, it will select a 1920x1080 wallpaper instead of the 3840 x 2160 version. Looks like it's looking at the logical screen resolution instead of the physical screen resolution.
Comment 1 Bug Janitor Service 2020-06-27 01:02:01 UTC 
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/119
Comment 2 Nate Graham 2020-06-29 18:49:14 UTC 
My patch stank, but David submitted a better one: https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/126