MyGUI is crashing on a second monitor

[corentinjaffre]

Tried the demos (ex: Demo_PanelView.exe), with Ogre 1.13.2, using directX9 and they crash when I move the window on my second screen.

Could be an issue with the font textures:
From Paroj:
My guess would be that the MyGUI Fonts are manually created but without providing a loader callback, so we cannot auto-restore them.

[Altren]

My guess would be that the MyGUI Fonts are manually created but without providing a loader callback, so we cannot auto-restore them.

MyGUI always handled that. Also not auto-restoring resources would cause empty data rather than crash in most cases.
Could you be more specific about the crash? Logs, crash callstack, error message, etc.

[corentinjaffre]

When I move Demo_PanelView.exe to the 2nd monitor:
"cannot increment value-initialized map/set iterator"
in
D3D9ResourceManager::notifyOnDeviceCreate(IDirect3DDevice9* d3d9Device)
Seems to be with Ogre::Resource = {mCreator=0x0000000000443f70 {...} mName="97634480_TrueTypeFont" mGroup="MyGuiResourceGroup" ...}

Ogre.log doesn't have the time to update its log before the crash, so there is no relevant information in it.

My call stack:

RenderSystem_Direct3D9_d.dll!std::_Tree_const_iterator<std::_Tree_val<std::_Tree_simple_types<Ogre::D3D9Resource *>>>::operator++() Line 198	C++
>	RenderSystem_Direct3D9_d.dll!Ogre::D3D9ResourceManager::notifyOnDeviceCreate(IDirect3DDevice9 * d3d9Device=0x0000000005b9c5c0) Line 70	C++
 	RenderSystem_Direct3D9_d.dll!Ogre::D3D9Device::createD3D9Device() Line 776	C++
 	RenderSystem_Direct3D9_d.dll!Ogre::D3D9Device::acquire() Line 146	C++
 	RenderSystem_Direct3D9_d.dll!Ogre::D3D9DeviceManager::linkRenderWindow(Ogre::D3D9RenderWindow * renderWindow=0x00000000004473e0) Line 137	C++
 	RenderSystem_Direct3D9_d.dll!Ogre::D3D9Device::validateDisplayMonitor(Ogre::D3D9RenderWindow * renderWindow=0x00000000004473e0) Line 991	C++
 	RenderSystem_Direct3D9_d.dll!Ogre::D3D9Device::validate(Ogre::D3D9RenderWindow * renderWindow=0x00000000004473e0) Line 844	C++
 	RenderSystem_Direct3D9_d.dll!Ogre::D3D9RenderWindow::_beginUpdate() Line 821	C++
 	OgreMain_d.dll!Ogre::RenderTarget::updateImpl() Line 153	C++
 	OgreMain_d.dll!Ogre::RenderTarget::update(bool swap=false) Line 558	C++
 	OgreMain_d.dll!Ogre::RenderSystem::_updateAllRenderTargets(bool swapBuffers=false) Line 265	C++
 	OgreMain_d.dll!Ogre::Root::_updateAllRenderTargets() Line 1230	C++
 	OgreMain_d.dll!Ogre::Root::renderOneFrame() Line 863	C++
 	Demo_PanelView.exe!base::BaseManager::drawOneFrame() Line 149	C++
 	Demo_PanelView.exe!base::SdlBaseManager::run() Line 165	C++
 	Demo_PanelView.exe!startApp<demo::DemoKeeper>() Line 59	C++
 	Demo_PanelView.exe!WinMain(HINSTANCE__ * hInst=0x000000013fe10000, HINSTANCE__ * __formal=0x0000000000000000, char * strCmdLine=0x000000000036444e, int argc=1) Line 82	C++
 	[External Code]	

[paroj]

looks like your loader becomes invalid, while the texture is still alive: https://forums.ogre3d.org/viewtopic.php?p=552832#p552832