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Type: Bug
Resolution: Fixed
Priority: P1: Critical
Fix Version/s: 6.8.1
Affects Version/s: 6.9.0 RC, 6.9.0
Component/s: WebEngine
Labels:
- reported_by_support_standard
Environment:
Windows 10.0.19045.5487
12th Gen Intel(R) Core(TM) i5-12400
AMD Radeon RX 6400
MSVC v143 - VS 2022 C++ x64/86 build tools (v14.43-17.13)

Platform/s:

Windows
Epic Link:
WebEngine: Rendering
Commits:
7d1a2d5dc (130-based), 6d6970fd9 (130-based), 824eb0f3f (dev), f540e0d0b (6.9)

The stacktrace and webengine logs attached.

Crash appears with all RHI backends "d3d11"/"opengl"/"software" (via QSG_RHI_BACKEND).

Switching QTWEBENGINE_CHROMIUM_FLAGS="--disable-gpu" fixes crashes, the simplebrowser works.

Issue doesnt reproduce on Qt 6.8.2

is duplicated by

QTBUG-135794 Cant run quicknanobrowser example with QT 6.9.0 with RDP session

PYSIDE-3071 Qt WebEngine crashes on startup

For Gerrit Dashboard: QTBUG-134746
#	Subject	Branch	Project	Status	CR	V
634034,4	[fixup] Stop Chromium from using DirectComposition	130-based	qt/qtwebengine-chromium	Status: MERGED	+2	0
647650,2	[fixup] Fix QtWebEngine build on Windows	130-based	qt/qtwebengine-chromium	Status: MERGED	+2	0
647651,2	Add Windows specific driver information to compositor log	dev	qt/qtwebengine	Status: MERGED	+2	0
649274,2	Add Windows specific driver information to compositor log	6.9	qt/qtwebengine	Status: MERGED	+2	0