well post a picture of your LC main board,  and a picture of your DB15 2 VGA adaptor.  The LC 1,  does play nicely with VGA mode with most DB15 to Vga adaptors… 



http://cache-www.belkin.com/support/dl/mac-vga_9_dipswitches.pdf

oh i just found JT's thread…   oh dead pictures again…

https://68kmla.org/forums/index.php?/topic/15929-video-adapter-docs-scan-dump/