It's over in the CNET Laptop troubleshooting forum at http://forums.cnet.com/7723-19681_102-352085/welcome-to-the-laptop-troubleshooting-forum-at-cnet/?tag=contentBody;threadListing
Sadly the HDX 16 is a bit of a monster laptop. I predicted such models should be fine for about 2 years then possible troubles.
-> And then you have the FAMOUS 9600M chip. You can google 9600M DEFECTIVE to learn why that chip was on my "never buy that" list.
i turned my laptop on this morning and got nothing in my display but a black screen. after trying various things to fix it, i found out that closing the lid on my laptop so that it goes to sleep, then opening it again would cause my computer to show a display as normal, but only for about 2 seconds, then screen would go black again. by closing the lid and opening it again repeatedly, i was able to try a couple of things. first i connected an external monitor and changed my display properties to extend my desktop to it. the display on the external monitor did the same thing my laptop screen was doing. the display worked for about 2 seconds but then black screen. i tried disconnecting all external devices then restarting but no change. then i tried a system restore to a couple of days ago. this didn't work either. i was about to try another system restore to an earlier time, but as i was in the process of closing the lid and opening it again to inch my way through the steps, as i opened the lid for probably about the 30th time, the display was different this time. it was very faint and flickered a bit, but it didn't go to a black screen. then a few seconds later the display started working as normal. no black screen, no faint display.
currently my display is working as it should, but i am very worried that at any time it will die on me again. also, i am afraid to reboot my computer, thinking the same issue will come back. i cannot keep it on forever because many things require you to restart your computer (updates etc).
i do freelance work over the internet so it is critical that i have a working computer. please help me figure this out. thank you in advance to anyone who helps.
my computer is an HP HDX 16 laptop running windows vista home premium 64 bit. my display driver is NVIDIA GeForce 9600M GT