misc: disable hardware acceleration by default at running

Change-Id: I5b9a599b1579822ab97e943c8a36643698ba6820

src/mainapplication.cpp

@@ -201,6 +201,7 @@ MainApplication::initLrc()
     splash_->hide();
     LRCInstance::subscribeToDebugReceived();
     LRCInstance::getAPI().holdConferences = false;
+    LRCInstance::avModel().setHardwareAcceleration(false);
 }
 
 void