ValueError: 27 is not a valid InputSource

[madsensh]

Getting an error regarding an unrecognized InputSource value. Based on my monitor's inputs and reviewing the list on lines 28-46 of monitorcontrol.py, I'm guessing it may be for the USB-C input. I can try creating a fork and adding that as a possible value, but wanted to double check with you if there is some standard list of input codes I should be referencing.

---

• Monitor manufacturer and model number: Dell U4924DW
• Input source (HDMI, VGA, display port, ect.): USB-C
• Output device (video card, discrete graphics, ect.):
• Operating system: Windows 10
• Python version: 3.11.1
• monitorcontrol version (monitorcontrol --version): 3.0.3

Steps to Reproduce

monitorcontrol --get-monitors -vvvv

Traceback (most recent call last):
File "C:\Users\user\apps\WPy64-31110\python-3.11.1.amd64\Lib\site-packages\monitorcontrol\monitorcontrol.py", line 397, in get_input_source
return InputSource(value)
^^^^^^^^^^^^^^^^^^
File "C:\Users\user\apps\WPy64-31110\python-3.11.1.amd64\Lib\enum.py", line 715, in call
return cls.new(cls, value)
^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\user\apps\WPy64-31110\python-3.11.1.amd64\Lib\enum.py", line 1131, in new
raise ve_exc
ValueError: 27 is not a valid InputSource

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "", line 198, in run_module_as_main
File "", line 88, in run_code
File "C:\Users\user\apps\WPy64-31110\python-3.11.1.amd64\Scripts\monitorcontrol.exe_main.py", line 7, in
File "C:\Users\user\apps\WPy64-31110\python-3.11.1.amd64\Lib\site-packages\monitorcontrol_main.py", line 158, in main
current_input = monitor_obj.get_input_source()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\user\apps\WPy64-31110\python-3.11.1.amd64\Lib\site-packages\monitorcontrol\monitorcontrol.py", line 399, in get_input_source
raise InputSourceValueError(
monitorcontrol.monitorcontrol.InputSourceValueError: 27 is not a valid InputSource

[newAM]

Sadly Type-C is not part of the VESA standard, and there doesn't seem to be a consistent pseudo-standard. I sent an email to VESA asking if they plan to update the specification for Type-C but have not heard back.

There's more context in #242

[madsensh]

Thanks for the quick reply. As it turns out, for my simple use case, which is to change back to the displayport input (can't use Dell Display Manager due to work-issued laptop), all I needed was this. Seems to run ok as long as monitorcontrol doesn't try to enumerate the inputs.

monitorcontrol --set-input-source DP1