I bought my Sony Vaio 13 Pro SVP1321M2E a little more than two years ago and it's been running great - until the fan started to make an incredible amount of noise. I replaced the fan myself and after that it started, at times, to power on but with a completely blank screen. However after a few restarts the screen came on again and everything was fine. I use suspend quite a lot and because of that my computer is "on" for many weeks at a time, before restart (most likely due to a new Linux kernel being installed since I'm a Ubuntu user).
Earlier this week, much to my disappointment, I restarted my laptop and since then it was refused to power up the screen again. I disassembled it - everything looks as it should, smells as it should; I've replaced the thermal paste, even replaced the new fan with the old but no go.
The computer powers up, starts the fan, the keyboard backlight, power indication and all, but the screen is completely black. Blank. Nothing.
I consider it odd since the laptop haw been working great for months since I replaced the fan. I suspend it, use it, suspend it, use, many times every day without worry. Then the screen works. But now, nothing. I've tried with and without the battery, using AC only, nothing. Removing all kinds of wires and trying, nothing; then putting them back, nothing.
Maybe it is that some stage of the BIOS or POST doesn't "go live". Could it be the BIOS battery?
Connecting a external monitor using HDMI is no change.
Any help would be much appreciated.