File 0001-angle-Always-use-primary-GPU.patch of Package qt6-webengine

From 03c7dcc3280530dacf58620d169ff9c540c04592 Mon Sep 17 00:00:00 2001
From: Peter Varga <pvarga@inf.u-szeged.hu>
Date: Tue, 11 Mar 2025 09:19:16 +0100
Subject: [PATCH] [angle] Always use primary GPU

Since https://crrev.com/c/5320107, ANGLE may choose another GPU what Qt
uses with an EGL configuration. This may lead to sporadic crashes when
ANGLE uses the native EGL context.

It is reproducible with integrated Intel GPU and dedicated Nvidia GPU.
If the primary GPU is Nvidia and the kernel mode setting (KMS) is not
explicitly enabled for the driver, it will fail to access DRM and will
fallback to Intel.

As a workaround, stop prioritizing EGL drivers with DRM support.

Change-Id: I5d346fdc0db59521e4a2d323c8b230a75f128eaa
Reviewed-on: https://codereview.qt-project.org/c/qt/qtwebengine-chromium/+/630511
Reviewed-by: Moss Heim <moss.heim@qt.io>
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
---
 .../angle/src/libANGLE/renderer/gl/egl/FunctionsEGL.cpp         | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/3rdparty/chromium/third_party/angle/src/libANGLE/renderer/gl/egl/FunctionsEGL.cpp b/src/3rdparty/chromium/third_party/angle/src/libANGLE/renderer/gl/egl/FunctionsEGL.cpp
index f9bd8aa417d..aa68b72f98e 100644
--- a/src/3rdparty/chromium/third_party/angle/src/libANGLE/renderer/gl/egl/FunctionsEGL.cpp
+++ b/src/3rdparty/chromium/third_party/angle/src/libANGLE/renderer/gl/egl/FunctionsEGL.cpp
@@ -245,7 +245,7 @@ egl::Error FunctionsEGL::initialize(EGLAttrib platformType, EGLNativeDisplayType
     // extensions once the display is created and initialized.
     queryExtensions();
 
-#if defined(ANGLE_HAS_LIBDRM)
+#if defined(ANGLE_HAS_LIBDRM) && !defined(TOOLKIT_QT)
     mEGLDisplay = getPreferredDisplay(&majorVersion, &minorVersion);
 #endif  // defined(ANGLE_HAS_LIBDRM)
 
-- 
2.49.0