5 files changed, 59 insertions, 0 deletions
diff --git a/indra/llwindow/llwindow.cpp b/indra/llwindow/llwindow.cpp
index 1b24250618..637ed10008 100644
--- a/indra/llwindow/llwindow.cpp
+++ b/indra/llwindow/llwindow.cpp
@@ -263,6 +263,16 @@ std::vector<std::string> LLWindow::getDynamicFallbackFontList()
 #endif
 }
 
+// static
+std::vector<std::string> LLWindow::getDisplaysResolutionList()
+{
+#if LL_WINDOWS
+	return LLWindowWin32::getDisplaysResolutionList();
+#else
+	return std::vector<std::string>();
+#endif
+}
+
 #define UTF16_IS_HIGH_SURROGATE(U) ((U16)((U) - 0xD800) < 0x0400)
 #define UTF16_IS_LOW_SURROGATE(U)  ((U16)((U) - 0xDC00) < 0x0400)
 #define UTF16_SURROGATE_PAIR_TO_UTF32(H,L) (((H) << 10) + (L) - (0xD800 << 10) - 0xDC00 + 0x00010000)
diff --git a/indra/llwindow/llwindow.h b/indra/llwindow/llwindow.h
index a05ba8cbba..bb4e534b60 100644
--- a/indra/llwindow/llwindow.h
+++ b/indra/llwindow/llwindow.h
@@ -168,6 +168,9 @@ public:
 
 	// Get system UI size based on DPI (for 96 DPI UI size should be 1.0)
 	virtual F32 getSystemUISize() { return 1.0; }
+
+	static std::vector<std::string> getDisplaysResolutionList();
+
 protected:
 	LLWindow(LLWindowCallbacks* callbacks, BOOL fullscreen, U32 flags);
 	virtual ~LLWindow();
diff --git a/indra/llwindow/llwindowwin32.cpp b/indra/llwindow/llwindowwin32.cpp
index 0b3936f8a5..3cbba59ed7 100644
--- a/indra/llwindow/llwindowwin32.cpp
+++ b/indra/llwindow/llwindowwin32.cpp
@@ -400,6 +400,39 @@ LLWinImm::~LLWinImm()
 }
 
 
+class LLMonitorInfo
+{
+public:
+
+	std::vector<std::string> getResolutionsList() { return mResList; }
+
+	LLMonitorInfo()
+	{
+		EnumDisplayMonitors(0, 0, MonitorEnum, (LPARAM)this);
+	}
+
+private:
+
+	static BOOL CALLBACK MonitorEnum(HMONITOR hMon, HDC hdc, LPRECT lprcMonitor, LPARAM pData)
+	{
+		int monitor_width = lprcMonitor->right - lprcMonitor->left;
+		int monitor_height = lprcMonitor->bottom - lprcMonitor->top;
+		
+		std::ostringstream sstream;
+		sstream << monitor_width << "x" << monitor_height;;
+		std::string res = sstream.str();
+
+		LLMonitorInfo* pThis = reinterpret_cast<LLMonitorInfo*>(pData);
+		pThis->mResList.push_back(res);
+
+		return TRUE;
+	}
+
+	std::vector<std::string> mResList;
+};
+
+static LLMonitorInfo sMonitorInfo;
+
 LLWindowWin32::LLWindowWin32(LLWindowCallbacks* callbacks,
 							 const std::string& title, const std::string& name, S32 x, S32 y, S32 width,
 							 S32 height, U32 flags, 
@@ -4219,6 +4252,12 @@ F32 LLWindowWin32::getSystemUISize()
 }
 
 //static
+std::vector<std::string> LLWindowWin32::getDisplaysResolutionList()
+{ 
+	return sMonitorInfo.getResolutionsList();
+}
+
+//static
 std::vector<std::string> LLWindowWin32::getDynamicFallbackFontList()
 {
 	// Fonts previously in getFontListSans() have moved to fonts.xml.
diff --git a/indra/llwindow/llwindowwin32.h b/indra/llwindow/llwindowwin32.h
index 9cd16eb993..b1e8350a78 100644
--- a/indra/llwindow/llwindowwin32.h
+++ b/indra/llwindow/llwindowwin32.h
@@ -114,6 +114,7 @@ public:
 
 	LLWindowCallbacks::DragNDropResult completeDragNDropRequest( const LLCoordGL gl_coord, const MASK mask, LLWindowCallbacks::DragNDropAction action, const std::string url );
 
+	static std::vector<std::string> getDisplaysResolutionList();
 	static std::vector<std::string> getDynamicFallbackFontList();
 	static void setDPIAwareness();
 protected:
diff --git a/indra/newview/llappviewer.cpp b/indra/newview/llappviewer.cpp
index 7c0124322c..d82e6fc58c 100644
--- a/indra/newview/llappviewer.cpp
+++ b/indra/newview/llappviewer.cpp
@@ -3490,6 +3490,12 @@ void LLAppViewer::writeSystemInfo()
 	gDebugInfo["FirstRunThisInstall"] = gSavedSettings.getBOOL("FirstRunThisInstall");
     gDebugInfo["StartupState"] = LLStartUp::getStartupStateString();
 
+	std::vector<std::string> resolutions = gViewerWindow->getWindow()->getDisplaysResolutionList();
+	for (auto res_iter : resolutions)
+	{
+		gDebugInfo["DisplayInfo"].append(res_iter);
+	}
+
 	writeDebugInfo(); // Save out debug_info.log early, in case of crash.
 }