Priority: P2: Important
Affects Version/s: 5.14.1
Fix Version/s: None
Environment:Operating System: Windows 10 Pro 64-bit (10.0, Build 18362) (18362.19h1_release.190318-1202)
Card name: Intel(R) Iris(R) Plus Graphics
Attached complete details from dxdiag.
Running an Angular 9 SPA web application in Qt (static pages loaded in WebEngine/WebView) does result in inconsistent rendering.
Attached examples (correct / wrong) with inconsistent rendering. These occur when clicking around the application but also when using ALT-TAB to switch between the application and for example windows explorer.
By default, GPU raster is set to off (can be noticed in Example 2/3).
Also, tested with both Qt 5.13.0 and Qt 5.14.1 and same issues appear,
Note also the 4K resolution that can also be a factor for the rendering issues (attached complete dxdiag for further investigations).
For debugging, we've used:
- Enabled Developer tools (no errors reported)
- QTWEBENGINE_CHROMIUM_FLAGS to enable-gpu-rasterization ( slight improvements - Example 4/5)
- disable-gpu Command-Line for Qt (did show significant improvements, issue seems solved)
As a workaround, is there any way we can detect graphic card capabilities so we can disable GPU in certain configurations (like the one presented).