Bug 404324 - Font size becomes too big when connected to external 4k screen
Summary: Font size becomes too big when connected to external 4k screen
Status: RESOLVED FIXED
Alias: None
Product: KScreen
Classification: Plasma
Component: common (show other bugs)
Version: 5.14.5
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: Sebastian Kügler
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-02-14 08:42 UTC by Guo Yunhe
Modified: 2022-11-08 20:34 UTC (History)
1 user (show)

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

Attachments
Screenshot of Kate when connected to 4k screen (176.66 KB, image/png)
2019-02-14 08:42 UTC, Guo Yunhe 		Details
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Description Guo Yunhe 2019-02-14 08:42:51 UTC 
Created attachment 118058 [details]
Screenshot of Kate when connected to 4k screen

SUMMARY

I have a laptop with 14 inch Full HD screen. Scale factor is 1. When connected to a big 4K external screen (only external screen and disable laptop screen), window font size becomes really big and clipped. Only Qt applications are affected.

STEPS TO REPRODUCE
1. Open some windows of KDE/Qt applications in a laptop with HD or Full HD resolution. Scale factor is 1.
2. Connect to external 4k screen. (external screen only)
3. Observe the font size changes.

OBSERVED RESULT

Font size is really big and clipped. See attachment.

EXPECTED RESULT

Font size should not change.

SOFTWARE/OS VERSIONS
Windows: 
MacOS: 
Linux/KDE Plasma: openSUSE Tumbleweed
(available in About System)
KDE Plasma Version: 5.14.5
KDE Frameworks Version: 5.54.0
Qt Version: 5.12.0

ADDITIONAL INFORMATION
Comment 1 Nate Graham 2019-02-14 21:04:05 UTC 
What's the font DPI set to in System Settings > Fonts > Force Fonts DPI? The default value, or something else?
Comment 2 Guo Yunhe 2019-02-19 10:07:14 UTC 
(In reply to Nate Graham from comment #1)
> What's the font DPI set to in System Settings > Fonts > Force Fonts DPI? The
> default value, or something else?

It is the default value
Comment 3 Nate Graham 2022-11-08 20:34:13 UTC 
This should be fixed now.