default or selected kernelversion does not have config value CONFIG_FB_MSM_TVOUT_NONE.
Result is shown for kernelversion 5.6.18
NONE
configname: CONFIG_FB_MSM_TVOUT_NONE
TVOut Region
└─>NONE
In linux kernel since version 2.6.35 (release Date: 2010-08-01)
This will disable TV Out functionality.