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Disable AMD switchable graphics on Windows with Vulkan to fix driver issue 

This is a required workaround on setups with AMD integrated graphics
+ NVIDIA dedicated GPU to be able to start the engine with the Forward+
or Forward Mobile rendering methods.

While a AMD driver update can resolve this issue, it still gets reported
regularly and is likely to become a source of support headache for people
distributing projects made with Godot (as this also affects exported projects).

(cherry picked from commit 31a9345189)
This commit is contained in:
Hugo Locurcio 2023-02-16 19:39:27 +01:00 committed by Yuri Sizov
parent d6d232a881
commit 30f079ecb5
1 changed files with 5 additions and 0 deletions
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5
platform/windows/os_windows.cpp
View File

@ -156,6 +156,11 @@ static void _error_handler(void *p_self, const char *p_func, const char *p_file,
void OS_Windows::initialize() { void OS_Windows::initialize() {
crash_handler.initialize(); crash_handler.initialize();
// Workaround for Vulkan not working on setups with AMD integrated graphics + NVIDIA dedicated GPU (GH-57708).
// This prevents using AMD integrated graphics with Vulkan entirely, but it allows the engine to start
// even on outdated/broken driver setups.
OS::get_singleton()->set_environment("DISABLE_LAYER_AMD_SWITCHABLE_GRAPHICS_1", "1");
#ifdef WINDOWS_DEBUG_OUTPUT_ENABLED #ifdef WINDOWS_DEBUG_OUTPUT_ENABLED
error_handlers.errfunc = _error_handler; error_handlers.errfunc = _error_handler;
error_handlers.userdata = this; error_handlers.userdata = this;