With DVI, no internet

Hello, when I connect my macbook pro to my TV with mini disply to DVI cable, the laptop cannot connect to internet. When I disconnect it with TV, internet works fine again. could anyone help me out?

Now I've got the problem, that the clients got only
internet access, when the DSL-Port (ppp0) is on first
place in the hierarchy of ethernet ports in the
network-prefpane.
It's a while since I configured 2 NICs but I seem to remember that older servers (maybe 10.3?) defaulted to using the first in that list as the 'internet' connected one. However, in 10.4 this is supposed to be indicated in Server Admin NAT pane (External Network Interface). Maybe once initially configured it has difficulty changing its config files to an alternative?
This is a problem because when i open the workgroup
manager, it gets the ISP hostname instead of the
servers hostname (i.e. "Location:
hostname.isp.com/LDAPv3/127.0.0.1).
I do remember that. However, it didn't seem to have any effect on any other services - just an annoyance.
I wonder if you could 'cheat' and create a false reverse zone & PTR record in server's own DNS for your ext IP? Then, when it looks up the IP address, it finds your own server name...
-david

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Yes, to be clear, there is no GPU. When I say the Z97M's HDMI out I mean the output from the Z97M motherboard. I have tried it with a second screen, the TV (it worked).
Logically one of two things must be happening... either the Z97M's HDMI signal isn't making it through the DVI/HDMI adaptor (when the laptop's signal is), or the monitor cannot process the Z97M's HDMI signal (when it can process the laptop's).
HDMI and DVI signals are the same, so the adaptor is just a plug converter ('square plug in round hole') and unlikely to be the issue, especially as it works with the laptop.
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128 Front Porch 10
80 Sync 5
200 Back Porch 15
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240 Back Porch 38
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As you can see the totals are in both cases 1688 750. As soon as you don't respect this totals, like in this example:
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Bye
Mac Mini Mac OS X (10.4.5)

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I have a new Pav 500-100a factory standard with no mods. A HP w2207 monitor.
Currently connect fine with VGA to the DVI-D port with the adapter that came with the pc. I've setup Windows, updated to 8.1, put in my files from my old PC and all was well except video isnt that good.
I got a DVD cable form work but its a DVI-I cable. It took 5 mins before windows comes up and then whenever the background picture changed in the theme it hung for a few seconds. I read that I need a DVD-D cable which i purchasd today.
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I fI power up with DVI connected I can get to BIOS, and i see the HP logo and dots as Win 8 starts.
I dont know what else I can try. I have no other usable video card with DVI
Any ideas out there?
Pls help - Steve
Although I am an HP employee, I am speaking for myself and not for HP.
This question was solved.
View Solution.

Hi Steve,
Only connect one active video cable to the monitor and do not use any adapters.
Use a flashlight and examine the DVI connector on the monitor. Which DVI type is it?
Some of the older HP monitors have DVI issues so you might want to check with HP Support and see if you have one of those models.
An older post a long time back indicated that audio also had to be feed to the monitor (claimed by a poster). If this is indeed true then it's a monitor design flaw. So, you could use a native HDMI cable and test out that claim.
HP DV9700, t9300, Nvidia 8600, 4GB, Crucial C300 128GB SSD
HP Photosmart Premium C309G, HP Photosmart 6520
HP Touchpad, HP Chromebook 11
Custom i7-4770k,Z-87, 8GB, Vertex 3 SSD, Samsung EVO SSD, Corsair HX650,GTX 760
Custom i7-4790k,Z-97, 16GB, Vertex 3 SSD, Plextor M.2 SSD, Samsung EVO SSD, Corsair HX650, GTX 660TI
Windows 7/8 UEFI/Legacy mode, MBR/GPT

With DVI, no internet

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