Hi,
this seems to be a well-known problem in the community but oddly enough I haven't seen an official bug report.
When launching DCS World Steam Edition on Linux via Proton, the characters on the AH-64D MFDs show up as filled blank squares.
As far as I can tell, this is due to the .TGA files of the MFD containing RGB values greater than 255. Converting the files via an image converter (ImageMagick, Photoshop, etc) corrects the values and makes the module function as expected but also breaks the Multiplayer Integrity Check.
Screenshot of the bug:
Please remake the following files so that they contain valid color codes:
DCSWorld/Mods/aircraft/AH-64D/Cockpit/IndicationResources/Displays/MPD/*.tga
On Linux, the conversion is as easy as:
#!/bin/sh
for file in "<game path>/Mods/aircraft/AH-64D/Cockpit/IndicationResources/Displays/MPD/*.tga"; do
convert $file $file
done
The bug was initially reported here: https://github.com/ValveSoftware/Proton/issues/1722#issuecomment-1356226049