1 Nov 2016, 23:33

@furnibird dmt (hdmi group 2) mode 35 is 1280*1024. If this correspond to your monitor native resolution you can go for it. You can also try dmt mode 4 (640x480) which is fail safe res that should be accepted by any monitor.
If you still got nothing after trying that then it could be you got a faulty hdmi-> vga converter or your monitor vga input is fried. Dunno 😞
If you got a multimeter you could check on the vga converter if you got voltage on the R, G, B pins (should read something between 0.5v and 1v). If no voltage then converter might be the source of the problem. If voltage is there then it's a monitor issue.