Bug 570614 - Wayland on displays with different fractional scaling: Eclipse is fine on the primary display only
Summary: Wayland on displays with different fractional scaling: Eclipse is fine on the...
Status: NEW
Alias: None
Product: Platform
Classification: Eclipse Project
Component: SWT (show other bugs)
Version: 4.19   Edit
Hardware: PC Linux
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: Platform-SWT-Inbox CLA
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Reported: 2021-01-25 07:07 EST by Martin Coufal CLA
Modified: 2021-02-02 14:36 EST (History)
2 users (show)

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Description Martin Coufal CLA 2021-01-25 07:07:21 EST 
Originally reported by Vaclav as 553486, but this is still an issue in the latest builds. Following is edited copy of the original bug report:

'''
If I set different fractional scaling factors for my two displays
then Eclipse starts fine only on the primary display. When Eclipse
starts on the secondary display (or if I move Eclipse from the
primary display to the secondary one) then its rendering is broken.

Eclipse: 
  * eclipse-platform-4.19M1

My environment:
  * 2 displays
  * Fedora 32 (x86_64)
  * Wayland + GNOME with fractional scaling enabled:
      $ gsettings get org.gnome.mutter experimental-features 
      ['scale-monitor-framebuffer']

Steps to reproduce:

  1. Have 2 displays and configure different fractional scaling
     for them, e.g. 125% for the primary display, 100% for the
     secondary one.
  2. Run Eclipse while having your pointer on the secondary
     display.

As a workaround I can maximize the window and then un-maximize it. Further
resizing is OK unless I opt for some of the "maximize" options.
'''