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Toshiba Satellite M35X-S161 - No Video

I took my laptop apart to clean the fan, and when I put it back together I had no video display. If I connect an external monitor to the laptop, I can see what I don't on the laptop monitor. I tried to use the steps in resolving the Toshiba Black Screen problem (http://www.fixya.com/support/t225857-toshiba_satellite_a135_s2376_black), but Toshiba insists I use the Toshiba Power Management Software, therefore I couldn't follow the steps completely. I have purchased and installed a new video cable (still no change), and tested a new invertor board (plugged cables into it with no success). The monitor does appear to illuminate and the brightness does seem to increase and decrease. Is it possible the monitor went bad when I took the laptop apart?

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  • schnabs Feb 22, 2008

    Saigua, I'll check out the Function-Key combo and wires supplying power and video signal to the monitor next. Since I've used the Function Keys to switch the video from laptop to external monitor, I do see a change while using the combo. I'll verify that's still the case and report back. As for the utility program and BIOS setting, I'll check into that as well. Do you think the BIOS settings could be restricting the video from displaying, or is that something I should start adjusting once I get my display back?



    Oh, and I was originally going to just shoot compressed air into the fan, but was out. I was too impatient to wait until the next day, and took it apart. I know, bad idea.



    While trying the steps mentioned in (http://www.fixya.com/support/t225857-tos...), I used an external monitor using the function-key combo and couldn't really get those steps to work for me. I continued to explore new solutions, and thought that maybe the monitor display settings needed fixing in the Display Properties menu. I tweaked the resolution and display for a monitor 2 and hit ok instead of apply. It immediately told me about my mistake by telling me the resolution was at an invalid range. So, I now don't even have video through my external (funtion key combo) display. Do you know how I can restore/reset my display settings back to normal without being able to use my laptop monitor or external display, to see what I'm doing?



    Thanks a bunch.

  • wantedpsycho Nov 16, 2008

    i have the almost exact same problem except my video just went out outa no where when i was on my laptop, but the black light still worked, i took it to a friend he had it cleaned and outa no where the picture was back, worked fine for a bit then again outa no where the picture went away but back light still works, i took it apparent took a look a the wiring and still no video but back light is ok. i did hook up a desktop monitor and that works just fine with it. i suspect it is the cord, but i could be wrong.

  • Steve Nordquist
    Steve Nordquist May 11, 2010

    Of course it's possible you disconnected or destroyed your LCD! But that would suck (given that you can't just buy a 24" plasma screen replacement for the LCD, for $200, until 2013....)

    What happens when you use that function-key combination used for switching display modes between built-in and external monitors? If it's nothing, then take it apart and make sure those wires supplying power and signals to the LCD are not shorted (as they would be if you laid the exposed parts across each other instead of sticking up...) or cut (e.g. not the same RMS voltage with a 400-ohm probe at each end.) Some serial line responsible for the sleep state of that thing is probably buggered, and you'll have to mend or replace that.

    As for cleaning the fan; I wonder why compressed air did not do the job, as usual....

  • Anonymous Mar 18, 2014

    Replaced Toshiba L770 screen and it does not display, black screen, need help with connections, preferably an image or step-by-step

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  • 981 Answers

There are generic (well, platform-agnostic) and free utility programs e.g. indexed on VersionTracker, used for fan control (FanGUI, smartFan, etc.) and power management which should work without interfering terribly with that Toshiba utility. Even so, it's possible you'll need to take out a misbehaving power-saving daemon (using Task Manager or whatever.) That suggestion to fiddle with the sleep levels is reasonable; another component you might update or refresh to work in concert with those tools is the system BIOS, which sets the addresses for all those sensors where Toshiba's tools can get at 'em.

Posted on Feb 22, 2008

  • Steve Nordquist
    Steve Nordquist Feb 22, 2008

    Okay should have done the same thing as Apply! (And; perhaps an old CRT type with wide scan range is handy in your neighborhood, to get a display back.)
    Well, perhaps it boots by default to a usable VGA resolution shown on the external monitor? In that case you can use safe mode or flash the BIOS and be okay; else, you can flash it blind or toy with the BIOS by booting with no videocard, powering off, reinserting it, and seeing if a better default comes up. (Yuck, more disassembly! Maybe you'll find the Marshmallow Peep you put in for Luck, though....)

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