Bug 419374 - Scaling for GTK doesn't work
Summary: Scaling for GTK doesn't work
Status: RESOLVED UPSTREAM
Alias: None
Product: systemsettings
Classification: Applications
Component: kcm_kscreen (show other bugs)
Version: 5.18.3
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: kscreen-bugs-null@kde.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-03-29 11:36 UTC by jan.claussen10
Modified: 2020-04-15 00:32 UTC (History)
3 users (show)

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Description jan.claussen10 2020-03-29 11:36:54 UTC 
SUMMARY
I have scaled my screen to 175%. Everything is scaled right except the GTK applications.

SOFTWARE/OS VERSIONS
Linux: 5.4.28 MANJARO 
KDE Plasma Version: 5.18.3
KDE Frameworks Version: 5.68.0
Qt Version: 5.14.1
Comment 1 Roman Gilg 2020-03-29 12:58:20 UTC 
What new scaling? Is it X11 or Wayland? Please make some screenshots.
Comment 2 jan.claussen10 2020-03-29 17:29:45 UTC 
No screenshot necessary. This is caused by GTK3, since it doesn't support non-integer scaling. When I set the scaling to 200%, GTK scales as well. But then the performance in Xournal++ gets really bad. One the other hand palm rejection works again.
Comment 3 Nate Graham 2020-04-15 00:32:51 UTC 
GTK doesn't support fractional scaling yet, which is why only integer scale factors (i.e. 100%, 200%, 300%) affect GTK apps. Once GTK gains support for fractional scaling, we can turn apply our fractional scale factors to GTK apps as well.