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Windows 7: HDMI shuts off computer

27 Aug 2009   #1

Windows 7 build 7100
 
 
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 System SpecsSystem Spec
.

27 Aug 2009   #2

Win 8 Release candidate 8400
 
 

Quote   Quote: Originally Posted by hifismith View Post
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 System SpecsSystem Spec
27 Aug 2009   #3

Windows 7 build 7100
 
 

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 System SpecsSystem Spec
.


27 Aug 2009   #4

Win 8 Release candidate 8400
 
 

Quote   Quote: Originally Posted by hifismith View Post
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 System SpecsSystem Spec
27 Aug 2009   #5

Windows 7 build 7100
 
 

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 System SpecsSystem Spec
27 Aug 2009   #6

Windows 7 build 7100
 
 

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 System SpecsSystem Spec
27 Aug 2009   #7

 
 

Quote   Quote: Originally Posted by hifismith View Post
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 System SpecsSystem Spec
27 Aug 2009   #8

Windows 7 build 7100
 
 

Quote   Quote: Originally Posted by iseeuu View Post
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 System SpecsSystem Spec
27 Aug 2009   #9

Win7 Build 7600 x86
 
 

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 System SpecsSystem Spec
27 Aug 2009   #10

Win7 Build 7600 x86
 
 

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