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Don't enable DRI_PRIME if nouveau is loaded

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This commit is contained in:
lupoDharkael 2018-12-20 11:51:26 +01:00
parent cf0716952d
commit bfade869f3
1 changed files with 20 additions and 1 deletions
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19
platform/x11/os_x11.cpp
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@ -243,7 +243,26 @@ Error OS_X11::initialize(const VideoMode &p_desired, int p_video_driver, int p_a
// Set DRI_PRIME if not set. This means that Godot should default to a higher-power GPU if it exists.
// Note: Due to the final '0' parameter to setenv any existing DRI_PRIME environment variables will not
// be overwritten.
bool enable_dri_prime = true;
// Check if Nouveau is loaded, we don't want to force dGPU usage with that driver.
if (FileAccess *f = FileAccess::open("/proc/modules", FileAccess::READ)) {
// Match driver name + space
String nouveau_str = "nouveau ";
while (!f->eof_reached()) {
String line = f->get_line();
if (line.begins_with(nouveau_str)) {
enable_dri_prime = false;
break;
}
}
f->close();
memdelete(f);
}
if (enable_dri_prime) {
setenv("DRI_PRIME", "1", 0);
}
ContextGL_X11::ContextType opengl_api_type = ContextGL_X11::GLES_3_0_COMPATIBLE;