Problem with laptop computer

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  • Thalermade
    Senior Member
    • Dec 2002
    • 791
    • Ohio
    • BT 3000
    #1

    Problem with laptop computer

    Okay, we have tried all the quick fixes from Google searches.

    The problem - no image on screen, but everything else is powered up. We even connected to an external monitor and no image, but the monitor did act like it was receiving some type of signal (the monitor only displayed the "no signal detected" message after disconnecting the cable.

    The laptop is an HP Pavilion dv5-1002nr. Purchased in August of 2008.
    AMD Turion-X2

    Of course I am trying to avoid paying a repair shop, but I am at my wits end on this thing.

    As always, thanks for any help you can provide.

    Russ
    Tags: None
    • pelligrini
      Veteran Member
      • Apr 2007
      • 4217
      • Fort Worth, TX
      • Craftsman 21829
      #2
      Do you get anything at POST?
      Erik

        Comment

        • radhak
          Veteran Member
          • Apr 2006
          • 3061
          • Miramar, FL
          • Right Tilt 3HP Unisaw
          #3
          You might have to go to the shop, I'm afraid.

          I'd say the graphics chipset ('video card' for the laptop) is blown, as I don't see how the video cable might have come loose inside a laptop (that would have been the other possible problem). Either way, not something you can DIY.

          You might want to call HP tech-help-desk for preliminary advice. Never know, they might offer better insight, or even cheaper repair.
          It is the mark of an educated mind to be able to entertain a thought without accepting it.
          - Aristotle

            Comment

            • phrog
              Veteran Member
              • Jul 2005
              • 1796
              • Chattanooga, TN, USA.
              #4
              This same thing happened to a friend of mine after she dropped her laptop. Turned out it was a loose cable.
              Richard

                Comment

                • JoeyGee
                  Veteran Member
                  • Nov 2005
                  • 1509
                  • Sylvania, OH, USA.
                  • BT3100-1
                  #5
                  This doesn't sound like the issue since you get no signal on an external monitor, but a simple thing to check would be to see if you can toggle between various display modes--LT only, external only and LT AND external.

                  I know on Dells and ThinkPads, the combination is the Fn key, plus another--Fn+F7 on my ThinkPad, for example.

                  Also, check the BIOS to see if there may be a goofy setting or something. EDIT--I just realized you can't check the BIOS if you can't SEE the BIOS. Unless you have a braile laptop, of course...
                  Last edited by JoeyGee; 09-05-2010, 02:22 PM. Reason: I'm an idiot.
                  Joe

                    Comment

                    • phrog
                      Veteran Member
                      • Jul 2005
                      • 1796
                      • Chattanooga, TN, USA.
                      #6
                      After re-reading the OP, I think radhak and Joe are right - probably not a loose cable and possibly the video chip.
                      Richard

                        Comment

                        • pelligrini
                          Veteran Member
                          • Apr 2007
                          • 4217
                          • Fort Worth, TX
                          • Craftsman 21829
                          #7
                          Originally posted by JoeyGee
                          Also, check the BIOS to see if there may be a goofy setting or something. EDIT--I just realized you can't check the BIOS if you can't SEE the BIOS. Unless you have a braile laptop, of course...
                          That's why I asked if there was anything during post. It could be just an incompatable display setting, which could be fixed in safe mode if the display was phisically working.

                          More than likely, it's the chipset on the motherboard. From what I've read HP had a bunch of Pavillions with bad graphics. I got my mom an HP DV9000 a few Christmases ago. It's on its second motherboard (which has now failed too). I can get it to post and into the BIOS and sometimes into windows, but not for very long if at all. The graphics will corrupt, then go black.
                          Erik

                            Comment

                            • LCHIEN
                              Super Moderator
                              • Dec 2002
                              • 21984
                              • Katy, TX, USA.
                              • BT3000 vintage 1999
                              #8
                              offhand it sounds like the video chip is partially working.
                              The monitor is receiving synch signals which is how it detects a signal. But the actual video signals (separate from synch in a VGA signal) are absent, so no pixels light up.
                              When you take the cable off, the sync is lost and then the monitor reports no signal.
                              So its looking like a motherboard problem.


                              PS BTW, video problems detected during POST are indicated by a series of Beeps because obviously screen messages can't be depended upon. So if you hear no beeps during POST then the video interface to the processor is good, again pointing to issues between the video graphics section and the display driving circuits.
                              Last edited by LCHIEN; 09-05-2010, 09:24 PM.
                              Loring in Katy, TX USA
                              If your only tool is a hammer, you tend to treat all problems as if they were nails.
                              BT3 FAQ - https://www.sawdustzone.org/forum/di...sked-questions

                                Comment

                                • parnelli
                                  Senior Member
                                  • Aug 2004
                                  • 585
                                  • .
                                  • bt3100
                                  #9
                                  Originally posted by pelligrini
                                  That's why I asked if there was anything during post. It could be just an incompatable display setting, which could be fixed in safe mode if the display was phisically working.

                                  More than likely, it's the chipset on the motherboard. From what I've read HP had a bunch of Pavillions with bad graphics. I got my mom an HP DV9000 a few Christmases ago. It's on its second motherboard (which has now failed too). I can get it to post and into the BIOS and sometimes into windows, but not for very long if at all. The graphics will corrupt, then go black.
                                  +1 on this reply. If nothing comes up on the initial post- either on the laptop screen or on the external- then it's certainly going to be a repair shop visit.

                                    Comment

                                    • Thalermade
                                      Senior Member
                                      • Dec 2002
                                      • 791
                                      • Ohio
                                      • BT 3000
                                      #10
                                      Thanks for the info. Guess I was just needing some support/confirmation. It will go to the repair shop tomorrow.

                                      Sure will be glad when this computer fad has run its course and the world can get back to the way things were meant to be.............................

                                      Russ

                                        Comment

                                        • pierhogunn2
                                          Established Member
                                          • Sep 2009
                                          • 134
                                          #11
                                          how good are you at "reflowing" the chip?

                                          I have a DV9000 that had a dedicated graphics chip that would on occaision, break some of it's connections to the motherboard

                                          the fix was "simple" I would tear my laptop down, remove the motherboard, and take a small butane blowtorch and reheating the chip to at least 250*f to remelt the solder under the chip and reattach it to the motherboard...

                                          this is probably the situation in your case...

                                          HP did a lousey job testing these systems out, and they fail with a great regularity... \

                                          good luck...

                                            Comment

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