Bug 305560

Summary: [GTK][WPE][Coordinated Graphics] rendering glitches for unpainted tiles
Product: WebKit Reporter: Fujii Hironori <fujii.hironori>
Component: WebKitGTKAssignee: Nobody <webkit-unassigned>
Status: REOPENED    
Severity: Normal CC: bugs-noreply, plampe
Priority: P2    
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   

Fujii Hironori
Reported 2026-01-15 05:32:55 PST
[GTK][WPE][Coordinated Graphics] rendering glitches for unpainted tiles 1. Load attachment#477989 [details] 2. Scroll the page by wheel events 3. rendering glitches for unpainted tiles See attachment#477990 [details] video which shows the problem.
Attachments
Fujii Hironori
Comment 1 2026-01-15 05:37:26 PST
Specifying a semi-transparent color background works around this problem. ./Tools/Scripts/run-minibrowser --gtk --release "https://bugs.webkit.org/attachment.cgi?id=477989" -- --bg-color "#00000050" https://github.com/WebKit/WebKit/blob/430ffe2d947cc6819a5ea30a8aa091f55a46779c/Source/WebKit/WebProcess/WebPage/CoordinatedGraphics/AcceleratedSurface.cpp#L1010-L1013
Fujii Hironori
Comment 2 2026-01-16 03:33:29 PST
Fujii Hironori
Comment 3 2026-01-19 04:16:53 PST
I'm going to fix this bug in bug#305758. *** This bug has been marked as a duplicate of bug 305758 ***
Fujii Hironori
Comment 4 2026-01-19 16:29:42 PST
Reopened. I'm going to solve this problem separately.
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