i have change grup to GRUB_CMDLINE_LINUX="mgag200.disable_display=1"
but no luck
Sep 17 09:40:23 server kernel: EDID block 0 is all zeroes
Sep 17 09:40:33 server kernel: EDID block 0 is all zeroes
Sep 17 09:40:44 server kernel: EDID block 0 is all zeroes
Sep 17 09:40:54 server kernel: EDID block 0 is all zeroes
Sep 17 09:41:04 server kernel: EDID block 0 is all zeroes
but no luck

Sep 17 09:40:23 server kernel: EDID block 0 is all zeroes
Sep 17 09:40:33 server kernel: EDID block 0 is all zeroes
Sep 17 09:40:44 server kernel: EDID block 0 is all zeroes
Sep 17 09:40:54 server kernel: EDID block 0 is all zeroes
Sep 17 09:41:04 server kernel: EDID block 0 is all zeroes