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Bug 1641335

Summary: Strange window scaling effects in Firefox on Wayland on fractional scaling on HiDPI display
Product: [Fedora] Fedora Reporter: Jan Vlug <jan.public>
Component: firefoxAssignee: Martin Stransky <stransky>
Status: CLOSED RAWHIDE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 29CC: 0xalen+redhat, alexey.brodkin, gecko-bugs-nobody, jhorak, john.j5live, pjasicek, rhughes, rstrode, sandmann, stransky
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Last Closed: 2019-03-15 13:32:02 UTC Type: Bug
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Bug Blocks: 1054334    
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Description Flags
Screenshot showing the issue
none
Strangely scaled pop-up window none

Description Jan Vlug 2018-10-21 10:47:20 UTC 
Created attachment 1496134 [details]
Screenshot showing the issue

Description of problem:
I sometimes see some strange scaling effects in Firefox on Wayland.

I have a setup of one regular display with 100% scaling and one HiDPI display with 150% scaling. I do not exactly know how to reproduce the issue, but it seems related to moving the Firefox window from one display to the other.
See the attachment for an example of this issue.

Version-Release number of selected component (if applicable):
firefox-wayland.x86_64                     62.0.3-4.fc28
Comment 1 Jan Vlug 2018-11-20 07:02:20 UTC 
Created attachment 1507351 [details]
Strangely scaled pop-up window

Still happens on firefox-wayland.x86_64 - 63.0.3-1.fc29
See new screenshot.
Comment 2 Martin Stransky 2019-03-15 13:32:02 UTC 
That should be fixed now, by firefox-66.0 builds.