Initially there was a very slight flicker every so often.
Then after a couple of months at boot I would see the first Acer screen but during this screen (3 sec or so) the screen would go black/blank or would turn off and I would not see the BIOS screen or Operating System Choice. (Computer would however boot properly to windows and windows runs no problem just I could not see anything)
Initially I could push the Lid Actuator switch a couple of times (maybe 20 or 30) and the screen would at some stage stay on. (I dont know if it matters but as I would release the switch and the screen would not stay on I THINK i could hear a very little hummmmmm which would stop as soon as the screen would turn off which was about a second.) In any case if I could get the screen to stay on then it would then work until next boot.
NOW at any time while the screen is blank/black I push the Lid Actuator switch then upon releasing the switch the screen can be seen for a second and then turns off again. When I can see it, it is not dim it appears to be full brightness. But now no matter how many times I push it I cannot get it to stay on.
When the screen is off I cannot see the contents of the screen at all, even with a bright light so I assume it is not a backlight problem.
I can connect it with a VGA connection to a TV and all works fine. From the monitor I looked at turning on the laptop screen as a second screen in dual mode for example. Windows recognizes that a second screen exists, i can set the resolution and then click apply. The laptop screen turns on for a second then turns off.
So which part do I check, buy first?