I launch KSP FROM steam. I get a "Loading Vulkan shaders" pop up, the loading screen runs as normal, it gets most of the way thru the loading screen, but then the window disappears. I found the KSP.log file, and the last log lines are as follows are shown below. I'm a programmer, by trade so if you want me to run some grep commands against the KSP/steam logs let me know.
[LOG 21:41:21.171] vallstone_d.mat
[LOG 21:41:21.171] vall_cryovolcano.fbx
[LOG 21:41:21.171] vall_icechunk.fbx
[LOG 21:41:21.171] vall_stone.fbx
[LOG 21:41:21.171] cryovolcano_d.tga
[LOG 21:41:21.171] cryovolcano_e.png
[LOG 21:41:21.171] cryovolcano_n.jpg
[LOG 21:41:21.171] cryovolcano_s.jpg
[LOG 21:41:21.172] vallicechunk_d.jpg
[LOG 21:41:21.172] vallicechunk_e.jpg
[LOG 21:41:21.172] vallicechunk_n.jpg
[LOG 21:41:21.172] vallicechunk_s.jpg
[LOG 21:41:21.172] vallstone_d.jpg
[LOG 21:41:21.172] vallstone_e.jpg
[LOG 21:41:21.172] vallstone_n.jpg
[LOG 21:41:21.172] vallstone_s.jpg
[LOG 21:41:21.172] vallcryovolcano.prefab
[LOG 21:41:21.172] vallicechunk.prefab
[LOG 21:41:21.172] vallstone.prefab
[LOG 21:41:21.172] vfx_spark.mat
[LOG 21:41:21.172] vfx_welding_flare.mat
[LOG 21:41:21.172] cometdustmaterial.mat
[LOG 21:41:21.172] cometgeysermat.mat
[LOG 21:41:21.243] Expansion makinghistory detected in path /home/john/.steam/debian-installation/steamapps/common/Kerbal Space Program/GameData/SquadExpansion/MakingHistory
[LOG 21:41:21.243] Expansion serenity detected in path /home/john/.steam/debian-installation/steamapps/common/Kerbal Space Program/GameData/SquadExpansion/Serenity
[LOG 21:41:21.271] GetTypesOfModulesImplementingInterface2: Found 69 types with IPartModuleAdjuster interface in 2 assemblies.
[LOG 21:41:21.295] GetSubclassesOfParentClass: Found 0 types with ModuleActiveRadiator parent in 2 assemblies.
[LOG 21:41:21.309] GetSubclassesOfParentClass: Found 0 types with ModuleAlternator parent in 2 assemblies.
[LOG 21:41:21.321] GetSubclassesOfParentClass: Found 1 types with ModuleControlSurface parent in 2 assemblies.
[LOG 21:41:21.333] GetSubclassesOfParentClass: Found 0 types with ModuleDataTransmitter parent in 2 assemblies.
[LOG 21:41:21.345] GetSubclassesOfParentClass: Found 0 types with ModuleDeployableSolarPanel parent in 2 assemblies.
[LOG 21:41:21.357] GetSubclassesOfParentClass: Found 1 types with ModuleEngines parent in 2 assemblies.
[LOG 21:41:21.370] GetSubclassesOfParentClass: Found 0 types with ModuleGenerator parent in 2 assemblies.
[LOG 21:41:21.382] GetSubclassesOfParentClass: Found 0 types with ModuleGimbal parent in 2 assemblies.
[LOG 21:41:21.393] GetSubclassesOfParentClass: Found 2 types with ModuleLiftingSurface parent in 2 assemblies.
[LOG 21:41:21.407] GetSubclassesOfParentClass: Found 0 types with ModuleLight parent in 2 assemblies.
[LOG 21:41:21.419] GetSubclassesOfParentClass: Found 0 types with ModuleReactionWheel parent in 2 assemblies.
[LOG 21:41:21.431] GetSubclassesOfParentClass: Found 0 types with ModuleSAS parent in 2 assemblies.
[LOG 21:41:21.443] GetSubclassesOfParentClass: Found 0 types with ModuleWheelBrakes parent in 2 assemblies.
[LOG 21:41:21.454] GetSubclassesOfParentClass: Found 1 types with ModuleWheelMotor parent in 2 assemblies.
[LOG 21:41:21.454] GetSubclassesOfParentClass: Using cached results for ModuleActiveRadiator
[LOG 21:41:21.465] GetSubclassesOfParentClass: Found 0 types with ModuleAnchoredDecoupler parent in 2 assemblies.
[LOG 21:41:21.477] GetSubclassesOfParentClass: Found 0 types with ModuleCargoBay parent in 2 assemblies.
[LOG 21:41:21.477] GetSubclassesOfParentClass: Using cached results for ModuleControlSurface
[LOG 21:41:21.477] GetSubclassesOfParentClass: Using cached results for ModuleDataTransmitter
[LOG 21:41:21.488] GetSubclassesOfParentClass: Found 0 types with ModuleDecouple parent in 2 assemblies.
[LOG 21:41:21.499] GetSubclassesOfParentClass: Found 4 types with ModuleDeployablePart parent in 2 assemblies.
[LOG 21:41:21.512] GetSubclassesOfParentClass: Found 0 types with ModuleDockingNode parent in 2 assemblies.
[LOG 21:41:21.512] GetSubclassesOfParentClass: Using cached results for ModuleEngines
[LOG 21:41:21.525] GetSubclassesOfParentClass: Found 0 types with CModuleFuelLine parent in 2 assemblies.
