I have a HP pavilion 9420us that has a serious issue of just showing a black screen. I have reserch all computer forums on the net, but yet to find a one with the same issue that I am experincing with HP. Ok what makes it different is that the black screen that I get when I bootup the unit, is just a black screen (pitch black) with nothing else showing. when turn on the HP logo splash screen does not even appear, not even the cursor... I mean nothing, nothing at all, the only thing that is going on is that all the indicator lights are on (power, HD, DVD function buttons, etc..etc..)but it stays on for only about 10 seconds and then it turns off, this goes on for about every one minute. I did the flash light test on the screen, could not see anthing behind the darkness. battery test, AC cord, hard reset, nothing resolve. turn off the unit waited about five to ten minutes, and then turn it back on. to my supprise it booted up normally without any other problems. check event logs to see if it reported anything out of the ordinary...nothing is found. the problems that I have read on other computer forums is that when they get a black screen there is usually a cursor that could be mover around on the screen, but with my issue, it' s just a total black screen with nothing with it. the only time I could get the unit to work properly or normally is that when I get the black screen, I will shut it down (power button)wait five to ten minutes then turn it back on. it run normally for hours, the problem begins again, when it is restarted.
any help from the bleeping computer community would be greatly appreciated