HDMI shuts off computer

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  1. Posts : 14
    Windows 7 build 7100
       #1

    HDMI shuts off computer


    Gateway Laptop M-151-X
    ATI Raedon 2400 graphics card

    I just got an HDMI over cat5 extender (HDMI from computer --> wall plate --> cat5 --> wall plate --> HDMI --> Receiver), got it? I plug the HDMI cable into the laptop and it turns off... immediately, like I pulled the battery and power out.

    I connected the computer directly (HDMI from computer --> Receiver) and it worked just fine.

    I connected my PS3 through HDMI-->cat5 and it worked fine too.

    I've updated the ATI drivers, downloaded the new catalyst center for windows 7. Anyone got any ideas?
      My Computer


  2. Posts : 28,845
    Win 8 Release candidate 8400
       #2

    hifismith said:
    Gateway Laptop M-151-X
    ATI Raedon 2400 graphics card

    I just got an HDMI over cat5 extender (HDMI from computer --> wall plate --> cat5 --> wall plate --> HDMI --> Receiver), got it? I plug the HDMI cable into the laptop and it turns off... immediately, like I pulled the battery and power out.

    I connected the computer directly (HDMI from computer --> Receiver) and it worked just fine.

    I connected my PS3 through HDMI-->cat5 and it worked fine too.

    I've updated the ATI drivers, downloaded the new catalyst center for windows 7. Anyone got any ideas?
    I dont think its this simple but. Cat5 is basically 4 conductors. Cat6 is 10 maybe 2 of the the four used connectors act like a ground? does the manual specify cat5?

    Ken
      My Computer


  3. Posts : 14
    Windows 7 build 7100
    Thread Starter
       #3

    Thanks for responding Ken. The package does say "Cat 5/Cat 6 Wall Plate Extender Kit" but I could try another set of cables (I don't have any cat 6 laying around). Let me see what I can find.

    The back of the box has more details. It says I need CAT5E-UTP to transmit 1080p. I don't know what that means. I'm going to google it. You might have figured it out. I thought there might be a ground issue.

    Eric
      My Computer


  4. Posts : 28,845
    Win 8 Release candidate 8400
       #4

    hifismith said:
    Thanks for responding Ken. The package does say "Cat 5/Cat 6 Wall Plate Extender Kit" but I could try another set of cables (I don't have any cat 6 laying around). Let me see what I can find.

    The back of the box has more details. It says I need CAT5E-UTP to transmit 1080p. I don't know what that means. I'm going to google it. You might have figured it out. I thought there might be a ground issue.

    Eric
    Cat 5 "e" is enhanced and so can transmit more data (actually faster) but Im not sure if 5E has 4 wires or 8. Let me go google brb

    edit from google cat 5 "e" has 8 wires (4 twisted pairs). Now I still dont know if thats the problem but im curious

    Ken
      My Computer


  5. Posts : 14
    Windows 7 build 7100
    Thread Starter
       #5

    One of the connected cat5 cables specifies "Cat5e" the other just says "Cat 5 patch cable".

    I'm going to swap out that cable for another. Here's hoping I don't crash again. Be back in 5-10 minutes.
      My Computer


  6. Posts : 14
    Windows 7 build 7100
    Thread Starter
       #6

    Sadly, that didn't work.

    I forgot to mention that everything works fine if I start the computer with the cable plugged in. That's obviously not a solution if I want to plug in quickly or disconnect and reconnect.

    edit: actually, the TV needs to be on during start-up or else the computer won't find it.
      My Computer


  7. Posts : 2,736
    ...
       #7

    hifismith said:
    Sadly, that didn't work.

    I forgot to mention that everything works fine if I start the computer with the cable plugged in. That's obviously not a solution if I want to plug in quickly or disconnect and reconnect.

    edit: actually, the TV needs to be on during start-up or else the computer won't find it.
    Here is some info on cables: How to Make a Category 5 /5e Patch Cable

    Cat5 and 6 both are 4 pairs of wires, only 4 wires are actually used to connect computers in a network. The difference between 5 and 6 is the quality of the wire, the gauge, and its improved conductivity.

    Question: Can you remove and reconnect the HDMI cable safely when directly connected between the computer and receiver successfully when both are powered on? (I am not recommending you do this)

    Robert
      My Computer


  8. Posts : 14
    Windows 7 build 7100
    Thread Starter
       #8

    iseeuu said:
    Question: Can you remove and reconnect the HDMI cable safely when directly connected between the computer and receiver successfully when both are powered on? (I am not recommending you do this)

    Robert
    I can disconnect/connect the HDMI cable safely when connecting directly to the receiver.
      My Computer


  9. Posts : 2,111
    Win7 Build 7600 x86
       #9

    Hi hifismith,

    The HDMI socket is electronically terminated. (hope you know what i mean)

    When pc boots, electronics will check if there is a cable connected.

    If there is, the electronics will not apply the termination.

    If there is not, it will.

    When you boot without a cable attached, the connection is terminated.

    By pushing in the cable, you make a power short circuit.

    Greetz
      My Computer


  10. Posts : 2,111
    Win7 Build 7600 x86
       #10

    Have you tried connecting the HDMI end first to the computer, and then the Cat5 end to the plate?
      My Computer


 
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