Bug 420132 - At 2x scale, UI elements appear squished (padding disappears) when used with some GPUs
Summary: At 2x scale, UI elements appear squished (padding disappears) when used with ...
Status: RESOLVED DUPLICATE of bug 390147
Alias: None
Product: plasma-integration
Classification: Plasma
Component: general (show other bugs)
Version: 5.16.5
Platform: Ubuntu Linux
: NOR normal
Target Milestone: ---
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-04-15 18:39 UTC by maximumsomething
Modified: 2021-07-26 18:44 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


Attachments
Squished padding (324.80 KB, image/png)
2020-04-15 18:39 UTC, maximumsomething
Details
Normal padding (276.41 KB, image/png)
2020-04-15 18:39 UTC, maximumsomething
Details

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Description maximumsomething 2020-04-15 18:39:09 UTC
Created attachment 127573 [details]
Squished padding

SUMMARY
Attached are two screenshots of KSysGuard, one with my integrated Intel GPU, and one with my dedicated AMD GPU. The AMD screenshot looks normal, while UI in the Intel screenshot is very squished. This happens in many QT apps: it affects tabs, buttons, icons, and other UI elements. It doesn't seem to affect GTK apps or the taskbar and system tray. If display scaling is at 1x, it's not a problem.

I've also had similarly squished padding with my dedicated GPU if I boot into recovery mode, then continue a graphical boot, which includes a warning that the GPU might not be fully initialized.

My hardware is a MacbookPro11,5, which has a 15-inch 2880x1800 display which I use at 2x scale. 

SOFTWARE/OS VERSIONS
Linux: 5.3.0-46
KDE Plasma Version: 5.16.5
KDE Frameworks Version: 5.62.0
Qt Version: 5.12.4
Comment 1 maximumsomething 2020-04-15 18:39:37 UTC
Created attachment 127574 [details]
Normal padding
Comment 2 Nate Graham 2020-09-29 21:10:12 UTC
This is just Plasma not handling with hidpi on X11 very well in general. It's fixed on Wayland or if you set the PLASMA_USE_QT_SCALING=1 in the environment and restart plasmashell.

*** This bug has been marked as a duplicate of bug 356446 ***
Comment 3 Nate Graham 2021-07-26 18:44:29 UTC

*** This bug has been marked as a duplicate of bug 390147 ***