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-rw-r--r--dev-qt/qtwebengine/files/qtwebengine-5.11.1-nouveau-disable-gpu.patch98
1 files changed, 98 insertions, 0 deletions
diff --git a/dev-qt/qtwebengine/files/qtwebengine-5.11.1-nouveau-disable-gpu.patch b/dev-qt/qtwebengine/files/qtwebengine-5.11.1-nouveau-disable-gpu.patch
new file mode 100644
index 00000000..aaf3aae4
--- /dev/null
+++ b/dev-qt/qtwebengine/files/qtwebengine-5.11.1-nouveau-disable-gpu.patch
@@ -0,0 +1,98 @@
+From: Antonio Larrosa <alarrosa@suse.com>
+Subject: Disable GPU when using nouveau or running on wayland
+References: boo#1005323, boo#1060990
+
+Qt WebEngine uses multi-threaded OpenGL, which nouveau does not support.
+It also crashes when running on wayland, the cause is not yet known.
+Work around these issues by not doing GPU-accelerated rendering in such
+cases.
+
+Index: qtwebengine-everywhere-src-5.11.0/src/core/web_engine_context.cpp
+===================================================================
+--- qtwebengine-everywhere-src-5.11.0.orig/src/core/web_engine_context.cpp
++++ qtwebengine-everywhere-src-5.11.0/src/core/web_engine_context.cpp
+@@ -100,6 +100,7 @@
+ #include <QOffscreenSurface>
+ #ifndef QT_NO_OPENGL
+ # include <QOpenGLContext>
++# include <QOpenGLFunctions>
+ #endif
+ #include <QQuickWindow>
+ #include <QStringList>
+@@ -178,6 +179,39 @@ void dummyGetPluginCallback(const std::v
+ }
+ #endif
+
++#ifndef QT_NO_OPENGL
++QString openGLVendor()
++{
++ QString vendor;
++
++ QOpenGLContext *oldContext = QOpenGLContext::currentContext();
++ QSurface *oldSurface = 0;
++ if (oldContext)
++ oldSurface = oldContext->surface();
++
++ QScopedPointer<QOffscreenSurface> surface( new QOffscreenSurface );
++ surface->create();
++ QOpenGLContext context;
++ if (!context.create()) {
++ qDebug() << "Error creating openGL context";
++ }
++ else if (!context.makeCurrent(surface.data())) {
++ qDebug() << "Error making openGL context current context";
++ } else {
++ const GLubyte *p;
++ QOpenGLFunctions *f = context.functions();
++ if ((p = f->glGetString(GL_VENDOR)))
++ vendor = QString::fromLatin1(reinterpret_cast<const char *>(p));
++ }
++
++ context.doneCurrent();
++ if (oldContext && oldSurface)
++ oldContext->makeCurrent(oldSurface);
++
++ return vendor;
++}
++#endif
++
+ } // namespace
+
+ namespace QtWebEngineCore {
+@@ -414,6 +448,27 @@ WebEngineContext::WebEngineContext()
+ const char *glType = 0;
+ #ifndef QT_NO_OPENGL
+
++ bool disableGpu = qEnvironmentVariableIsSet("QT_WEBENGINE_DISABLE_GPU");
++
++ if (!qEnvironmentVariableIsSet("QT_WEBENGINE_DISABLE_WAYLAND_WORKAROUND") && platform.startsWith("wayland", Qt::CaseInsensitive))
++ {
++ qWarning() << "Running on wayland. Qt WebEngine will disable usage of the GPU.\n"
++ "Note: you can set the QT_WEBENGINE_DISABLE_WAYLAND_WORKAROUND\n"
++ "environment variable before running this application, but this is \n"
++ "not recommended since this usually causes applications to crash.";
++ disableGpu = true;
++ }
++
++ if (!qEnvironmentVariableIsSet("QT_WEBENGINE_DISABLE_NOUVEAU_WORKAROUND") && openGLVendor() == QStringLiteral("nouveau"))
++ {
++ qWarning() << "Nouveau openGL driver detected. Qt WebEngine will disable usage of the GPU.\n"
++ "Note: you can set the QT_WEBENGINE_DISABLE_NOUVEAU_WORKAROUND\n"
++ "environment variable before running this application, but this is \n"
++ "not recommended since this usually causes applications to crash as\n"
++ "Nouveau openGL drivers don't support multithreaded rendering";
++ disableGpu = true;
++ }
++
+ bool tryGL =
+ !usingANGLE()
+ && (!usingSoftwareDynamicGL()
+@@ -424,7 +479,7 @@ WebEngineContext::WebEngineContext()
+ || enableWebGLSoftwareRendering
+ #endif
+ )
+- && !usingQtQuick2DRenderer();
++ && !usingQtQuick2DRenderer() && !disableGpu;
+
+ if (tryGL) {
+ if (qt_gl_global_share_context() && qt_gl_global_share_context()->isValid()) {