Bug 410593

Summary: Sometimes icons are not rendered immediately after scrolling when fractional display scaling is used
Product: [Applications] dolphin Reporter: Patrick Silva <bugseforuns>
Component: view-engine: generalAssignee: Dolphin Bug Assignee <dolphin-bugs-null>
Status: RESOLVED WORKSFORME    
Severity: normal CC: elvis.angelaccio, nate
Priority: NOR    
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: screen recording

Description Patrick Silva 2019-08-04 22:41:24 UTC 
Created attachment 121933 [details]
screen recording

Dolphin 19.08 RC on Arch Linux...

STEPS TO REPRODUCE
1. open system settings > display and monitor > click "Scale display" button and set display scale factor to 1.2 
2. relogin
3. open a folder containing several files (I used a folder containing 2142 files during the screen recording)
4. scroll folder contents using the mouse wheel

OBSERVED RESULT
Watch the attached screen recording please. Sometimes some icons are not rendered immediately after the scrolling. They appear on mouseover.

EXPECTED RESULT
all icons are always rendered correctly

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 5.16.4
KDE Frameworks Version: 5.60.0
Qt Version: 5.13.0
Comment 1 Nate Graham 2019-08-04 23:45:48 UTC 
Well that's odd.
Comment 2 Patrick Silva 2019-09-05 20:53:56 UTC 
it's still happening

Operating System: Arch Linux 
KDE Plasma Version: 5.16.5
KDE Frameworks Version: 5.61.0
Qt Version: 5.13.1
Comment 3 Patrick Silva 2020-02-11 15:35:55 UTC 
no longer reproducible.

Operating System: Arch Linux 
KDE Plasma Version: 5.18.0
KDE Frameworks Version: 5.67.0
Qt Version: 5.14.1