Bug 388265

Summary: Repaint issues with fractional scaling
Product: [Frameworks and Libraries] frameworks-kwidgetsaddons Reporter: Patrick Silva <bugseforuns>
Component: generalAssignee: Christoph Feck <cfeck>
Status: RESOLVED DUPLICATE    
Severity: normal CC: hugo.pereira.da.costa, kde, kdelibs-bugs, nate
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed In:
Attachments: dolphin preferences
dolphin context menu and submenu
thin line below buttons on mouseover

Description Patrick Silva 2017-12-27 01:51:07 UTC
Created attachment 109541 [details]
dolphin preferences

A small blue line appears when I leave a section of some apps preferences window
(my screencast shows dolphin preferences but I noticed the same bug in K3b preferences) and on mouseover menus and submenus.
My monitor scale is 1.2. No problem when I use default monitor scale.
Comment 1 Patrick Silva 2017-12-27 01:51:44 UTC
Created attachment 109542 [details]
dolphin context menu and submenu
Comment 2 Hugo Pereira Da Costa 2018-02-07 14:09:21 UTC
(In reply to Dr. Chapatin from comment #1)
> Created attachment 109542 [details]
> dolphin context menu and submenu

Sorry for the delaied answer (well, at least aknowledgement of the report). And thanks for the bug report.
So far I have been unable to reproduce the issue. (but I will try harder).
Can you, on your side, reproduce it using a different widget style 
(e.g. dolphin -style fusion) ?
Is it running with X11, or Wayland ? 

Thanks in advance,

Hugo
Comment 3 Patrick Silva 2018-02-07 14:14:24 UTC
(In reply to Hugo Pereira Da Costa from comment #2)
> Can you, on your side, reproduce it using a different widget style 
> (e.g. dolphin -style fusion) ?
> Is it running with X11, or Wayland ? 
Yes, I can reproduce using fusion style under X11.
Comment 4 Christoph Feck 2018-02-22 23:10:07 UTC
It probably is a bug in KPageDialog not handling rounding with fractional scaled rectangles.
Comment 5 Christoph Feck 2018-02-22 23:15:44 UTC
What's funny is the line appearing inside the first item. Reproduced with Fusion, Skulpture, and Breeze style, in Dolphin and KWrite config dialog.
Comment 6 Patrick Silva 2018-03-18 16:09:59 UTC
Created attachment 111483 [details]
thin line below buttons on mouseover

I think this bug is related...
As you can see in my gif, a thin line appears below buttons on mouseover.
Comment 7 Patrick Silva 2018-03-20 21:44:01 UTC
qt bug
https://bugreports.qt.io/browse/QTBUG-67199

*** This bug has been marked as a duplicate of bug 392028 ***