Bug 455896

Summary: Rendering issues with Firefox when dragging its window in the grid effect
Product: [Plasma] kwin Reporter: postix <postix>
Component: effects-desktop-gridAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED FIXED    
Severity: normal CC: nate, postix
Priority: NOR Keywords: wayland-only
Version First Reported In: git-stable-Plasma/5.26   
Target Milestone: ---   
Platform: openSUSE   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Screenshot 1
Screenshot 2
kWin Support Info
Screenshot 3
Screenshot: 5.26.0, Thunderbird

Description postix 2022-06-24 18:17:31 UTC
Created attachment 150122 [details]
Screenshot 1

SUMMARY

1) Sometimes only the upper left quadrant of Firefox's window becomes rendered after moving its window
2) Sometimes it rendered a VD below, but the titlebar is rendered in the VD where the window was grapped

Please see the two screen recordings.


SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20220623
KDE Plasma Version: 5.25.1
KDE Frameworks Version: 5.95.0
Qt Version: 5.15.2
Kernel Version: 5.18.4-1-default (64-bit)
Graphics Platform: Wayland
Graphics Processor: AMD Radeon RX 580 Series

ADDITIONAL INFORMATION
Mixed DPI: 2k@100% + 4k@200% (primary)
Comment 1 postix 2022-06-24 18:17:53 UTC
Created attachment 150123 [details]
Screenshot 2
Comment 2 postix 2022-06-24 18:18:12 UTC
Created attachment 150124 [details]
kWin Support Info
Comment 3 postix 2022-06-24 18:24:52 UTC
Created attachment 150125 [details]
Screenshot 3

Third issue: Sometimes FF's window is rendered too low in a VD, only showing the tab bar above. If it's moved then, it shows the window far below the dragging cursor.
Comment 4 postix 2022-10-14 12:44:20 UTC
Created attachment 152811 [details]
Screenshot: 5.26.0, Thunderbird

Something similar happens to thunderbird: The window is not painted correctly respectively, it seems it painted off the screen.
Comment 5 postix 2022-10-14 12:45:30 UTC
Since I cannot reproduce this particular issue for the Firefox browser, I will reopen one for the Thunderbird issue.