Monitor turns off after boot!

I think I' ve screwed something :-(
I've installed the latest insider on my desktop as it works fine on the netbook, and now the screen turns off after the boot screen, the computer doesn't hang and seems to show signs of working (HDD light flashing). The video card is OK. Once the screen came up after plugging a USB drive, and once the computer booted normally with screen, but now it doesn't.
Please help!
Thank you

Hi what have you tried?? Have you tried a different monitor? Remove one stick of RAM and see if you can boot.
Can you boot in safe mode. There are many things that keep windows from booting!
See if any thing here helps!!
http://pcsupport.about.com/od/findby...nt-turn-on.htm

Thank you

I don't think it's a HW issue, as this happened just after installing the Insider preview. Before that the computer booted fine all times. And when this Windows Insider decides to output video after booting, it works fine, no hangs no crashes, even while gaming

Anyway seems that the problem has fixed on its own, I rebooted continuously and now it boots properly, weird :/ I am still curious to know what happened.

Hi Glad you got it solved. It's always good if you can remember what you did before you started having problems.
I find the Reliability Monitor a good tool to help with issues like this!! It can get you started in the right direction some times!
http://www.howtogeek.com/166911/reli...u-arent-using/

Thank you again :) There aren't any suspicious events

I'll assume Windows 10 insider was updating something and causing that issue, as I recalled somehting similar happened on the netbook with Win 7 just after a reinstall long time ago, but in that case the screen recovered after 10 seconds or so, instead of staying it without signal. If anyone had this same issue please reply :)