Problem with Screen Blacking Out!

I wrote a post today to the Fujitsu forum today, about a hardware problem I am having with my Fujitsu P7010D subnotebook.

It just occurred that the hardware experts who frequent this forum, might be better suited to help with the problem, even if not familiar with the particular notebook.

I don't want to double-post, and post the same post here, so instead I'll put a link to that other thread:

http://forum.notebookreview.com/showthread.php?p=4352268

I hope some of the hardware experts here will read the thread, and will be able to help.

Thanks in advance!

 

http://www.laptoprepair101.com/laptop/2007/01/31/replace-screen-inverter-fix-backlight/
Sounds like the inverter, read this to see if it could be the inverter.

 

I agree maybe inverter.

 

If you shine a light on the screen when it's dark, can you faintly make out what's being displayed on the screen?

 

I have not tried shining a flashlight on it, but I am pretty sure one would not see anything. It is completely black, as if the computer was off.

 

Thanks for the suggestion, but I doubt it, due to the fact that when it is blacked out, it is completely out, no image on the screen at all.

 

Just try a flashlight to really put that theory out of hands, some screens may be very black when the inverter has broken, looking like it's completely out.


Otherwise it could be faulty GPU, screen or something like that if you really is sure it's not software causing it. Even though you think it's not, it's not out of the question as the screen gets a signal after you reinstate the standby mode, so in my eyes it seems like software no matter what you say. Microsoft Windows isn't always bug-free.


Try having the notebook idling in BIOS for a couple of hourse and see if the same thing happens, it should happen there too if it is not software related.

 

Try an external monitor and see if this problem still occurs. It could be a bad display cable where the signal is intermittent, or it could also be a driver issue which may be switching to an output source without reason.

Try what everyone is suggesting above first to rule out the inverter/backlight issue.

 

Thanks for the suggestions, everyone. I haven't used that notebook in the past week, so haven't had a chance to try the suggestions yet. But I will.

By idling in BIOS, you mean just leaving it turned to BIOS, plugged in? OK, I'll try that some time. However, the problem doesn't always occur within every 2 (3, 4, etc.) hour period. It is completely unpredictably intermittent, except for as I described, some hardware things that make it more likely to happen (although not predictably so).

Well, if you think it could be software, what would you suggest I try? As said, my power settings are to keep the screen on all the time, no auto blackouts at all, no auto sleep or hibernate, so nothing about my power settings could cause this.

I think it is possible that it has something to do with the hardware that controls the power management. Don't know.

 

Sorry that I haven't come back to this in a while.

Now I have sometimes seen that, when it blacks out, that one can still see a faint picture on the screen, with no backlight. I'm not sure that's the case every time it blacks out, but at least sometimes. So, I was wrong before, in saying I didn't think that was going on.

Is there anything I could do to fix that? Or, just live with it, since I can work around it by putting the computer to sleep, and waking it up again?

If I just leave as is, will the problem get worse in the future, where the backlight won't work at all?

 

It'll continue to get worse, if its going out abruptly and completely its more likely an inverter failing, usually the bulb itself failing will cause it to lose brightness or change colors before going out completely, but in a perfect world at least you should have the notebook checked out for both, if it happens pretty regularly it won't be hard for a technician to check the voltage coming out of the inverter when it happens to see whether its the bulb or inverter.

 

Cross-posting is not allowed per the forum rules so this thread is now closed. Use the link from the first post to go to the original thread. Thank you.