I have recently answered several queries from owners of the original VRInsight MCP1 panel. They report that LINDA is not working with their MCP1 with advanced aircraft like the PMDG 737NGX and Aerosoft Airbus A318/A319/A320/A321.
The reason is twofold. First, the config-mcp.lua file has been generated from the default aircraft configuration for SPD/HDG/ALT and these are not suitable for more complicated aircraft like PDMG and Aerosoft products. You need to go through the specific module menu and assign functions specifically written for your aircraft. Second, because your MCP panel is no longer sold, neither I nor Guenselli, have this panel to create a specific config-lua.default file for MCP1 users.
However, I have been working on this problem. Using 2.9.x there is now a method of copying the MCP2 configuration to work with your MCP1 panel.
The procedure is as follows:
Open LINDA and manually select PDMG737NGX or other aircraft from the dropdown.
Go to Setup MCP.
Select MCP2(Boeing) and save.
Select the Combo MCP page.
Click twice on the EFIS Mode 3 tick box at bottom (or make any other change) to highlight save button.
Hold down CTRL key and click on SAVE. You will see a confirm message that MCP1 config-hid.lua file has been created.
Go to Setup MCP and change back to MCP1 panel and save.
Start your flight sim and load the above aircraft.
Select FSXSync ON (orange box).
You should now have functioning SPD/HDG/ALT knobs and buttons.
Please note that not all LINDA aircraft modules will have a config-mcp2.default file. The default aircraft supplied with your flt sim (eg. Beechcraft 58) will work with the default functions included in the default template and the library LIB-FSX Default.