Bug 440362 - Mixed DPI multi-monitor goes haywire when using Qt scaling on X11
Summary: Mixed DPI multi-monitor goes haywire when using Qt scaling on X11
Status: RESOLVED INTENTIONAL
Alias: None
Product: KScreen
Classification: Unclassified
Component: common (show other bugs)
Version: git
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: kscreen-bugs-null@kde.org
URL:
Keywords:
Depends on:
Blocks: 356446
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Reported: 2021-07-28 16:56 UTC by Nate Graham
Modified: 2022-01-21 05:12 UTC (History)
2 users (show)

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Description Nate Graham 2021-07-28 16:56:05 UTC
Mixed DPI multi-monitor setups are not officially supported on X11, but they can be bodged into working. If you set PLASMA_USE_QT_SCALING=1 to enable Qt scaling on X11 though, everything goes haywire and nothing works properly at all. See https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/139#note_69756.

This must be resolved if Bug 356446 is going to be implemented.
Comment 1 Nate Graham 2021-07-28 16:56:39 UTC
Opening this purely so it can be marked as a blocker for Bug 356446, for tracking and recordkeeping purposes.
Comment 2 Nate Graham 2022-01-21 05:12:14 UTC
The thing this is a blocker for (Bug 356446) is closed now, and doing this was never supported anyway.

Unfortunately I think we have to close this. Folks who want a decent hidpi experience will have to use Wayland and look forward to upcoming changes to improve the experience for XWayland apps in particular.

Sorry everyone. :(