Merge pull request #355 from jakaskerl/master

Updated docs for QT troubleshoot

source/pages/faq.rst

@@ -846,13 +846,13 @@ How Do I Force USB2 Mode?
 
 USB2 Communication may be desirable if you'd like to use extra-long USB cables and don't need USB3 speeds.
 
-You can force USB2 mode by setting :code:`usb2Mode` to :code:`True` when creating the device (note - it works for gen2):
+You can force USB2 mode by setting :code:`maxUsbSpeed` to :code:`dai.UsbSpeed.HIGH` when creating the device (note - it works for gen2):
 
 .. code-block:: python
 
-  dai.Device(pipeline, usb2Mode=True)
+  dai.Device(pipeline, maxUsbSpeed=dai.UsbSpeed.HIGH)
 
-The other way is using the :code:`-usbs usb2` (or :code:`--usbSpeed usb2`) command line option as below:
+The other way is using the :code:`-usbs usb2` (or :code:`--usbSpeed usb2`) command line option as below (this option only works with depthai_demo.py script):
 
 .. code-block:: bash
 

source/pages/troubleshooting.rst

@@ -229,6 +229,27 @@ CTRL-C Is Not Stopping It!
 
 If you are trying to kill a program with :code:`CTLR-C`, and it's not working, try :code:`CTRL-\ ` instead.  Usually this will work.
 
+Nothing happening when running a DepthAI script
+###############################################
+
+If upon running a DepthAI script, nothing happens (the script just hangs) and you cannot :code:`CTRL-C` out of it.
+Try running :code:`cam_test.py` script from the :code:`depthai-python/utilities` folder. The script should error out with something like:
+
+.. code-block:: bash
+
+  QObject::moveToThread: Current thread (0x55b9d0a00320) is not the object's thread (0x55b9d0cad7e0).
+  Cannot move to target thread (0x55b9d0a00320)
+
+          .
+          .
+          .
+
+  Aborted (Signal sent by tkill() 32104 1001)
+  Aborted (core dumped)
+
+This means there is a problem with PyQt5 installation. Follow this `issue <https://github.com/wkentaro/labelme/issues/842>`__ for a resolution.
+
+
 "DLL load failed while importing cv2" on Windows
 ################################################