nadenislamarre yes ....sorry, i will try to locate these files to send it for you ...
The problem occurred to me only in the master system and mega drive (the screen went black when leaving and enter another game of these platforms), being necessary to restart the batocera in order to play some of these games again.
As I wanted to solve the problem, I changed the line to global.videomode = default (instead of CEA 4 HDMI). And this alone solved the problem ... so, I believe that my log file would not help you since with this attitude of mine, the error did not occur any more ...
However, I can do the test: return the line value to CEA 4 HDMI, make the error happen (black screen) and then look for the log file that you requested me to assist you ...