I'm building a new PC. The problem is I have no OS on my PC yet and I have it connected to my TV via VGA and I am getting no signal. I have a MSI Z97s krait edition and a r9 270x gpu. I have the VGA connected to the mobo not the gpu. Do I need an actual monitor until I get an OS on it? My tv is an older Vizio and I'm using a bootable thumb drive with Ubuntu on it for my OS.
Uninstall your gpu completely and run motherboard video to remove that as a variable. The motherboard probably will take a few minutes to cycle through the video outs for voltage draw. Be patient, make sure the tv is on the right vga input and maybe cycle the power on the tv a few times.