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1371 posts

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# 96028 18-Jan-2012 23:48
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I am trying to use the HDMI output on my laptop to connect to a sanyo projector with a DVI input.

I purchased a HDMI to DVI-D cable from DSE to connect it but cannot get any signal at all.

If i plug it in the laptop doesn't detect any external display is connected at all.

I thought it could be to do with HDCP but the projector supports this as well as Digital PC input.

I have tried lowering the resolution down to 800x600.

I have updated my graphics card drivers.  


I have another laptop with VGA out, i can connect to the projector with this using a VGA to DVI cable.

The laptop shows the sanyo projector in the display settings and connects as soon as i plug it in.


Have tried 2 HDMI to DVI cables so i don't think that is the problem, not sure what else it could be? 

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  # 570667 19-Jan-2012 06:46
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Have you tried a standard hdmi cable to another display to check that the hdmi does in fact work on the laptop?



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  # 570701 19-Jan-2012 09:46
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CYaBro: Have you tried a standard hdmi cable to another display to check that the hdmi does in fact work on the laptop?


Yes i use it to connect to my tv all the time. 

 
 
 
 




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  # 570771 19-Jan-2012 12:34
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OK a quick update.

Just tried connecting my laptop to tv with HDMI cable and it works fine.

Then i have tried connecting the laptop to a monitor using a HDMI to DVI cable and i get no signal.

Either my laptop output doesn't like HDMI to DVI cables for some reason or i have to broken cables?

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  # 570803 19-Jan-2012 13:30
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Are they standard cables? There were some weird ones a friend got that were made to drive HDMI from something with DVI out on it and were specific to that device.

I have used many of the $1.something adapters off ebay to drive TV's from a DVI on a gfx cards fine, but the cables they had were no good for it.




Richard rich.ms



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  # 570806 19-Jan-2012 13:35
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The two cables i have are this one: http://www.dicksmith.co.nz/product/XH9595/dse-hdmi-to-dvi-cable-1-5m

Usually i wouldn't pay the highly inflated prices for cables at DSE but this time i had no choice.




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  # 575594 31-Jan-2012 23:32
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Right as an update to this, i did have a problem with my video drivers. I updated them and was then able to get a signal via the HDMI>DVI cable to a monitor just fine.

Still can't connect to the projector though which is really annoying. I have tested the DVI port with a VGA > DVI cable from another laptop and it worked fine.

The projector has three settings -
RGB (Analog)
RGB (PC Digital)
RGB (HDCP)

I try have tried all three numerous times but nothing is working.

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  # 576142 2-Feb-2012 01:42
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Power on the projector, select the correct input channel on the projector, power off the laptop, connect the hdmi->dvi cable, power on the laptop, see if you get a signal, you should see bios loading up on the projector.

PS. You mentioned the projector has 3x RGB settings, these are not the "projector input channel" settings to choose what input it is using (DVI in your case).




HTPC: Intel i3-2100 / 12GB RAM / AMD HD7750 / 480 GB SSD / 58TB Storage / MediaPortal / MadVR / Win10
AVR: Pioneer Elite SC-LX87 220W 9.2 Ch AVR
Speakers: Wharfedale Jade 7 Fronts / Jade 2c Center / Jade 5 Rears
Subs: iNuke 3000dsp 3000W proamp with 4x 15" JBL Sealed Subs
Display: Samsung 60" UA60H6400 LCD TV
Accessories: Gefen HDMI Detective with splitter


 
 
 
 




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  # 576295 2-Feb-2012 13:25
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kiwijunglist: Power on the projector, select the correct input channel on the projector, power off the laptop, connect the hdmi->dvi cable, power on the laptop, see if you get a signal, you should see bios loading up on the projector.

PS. You mentioned the projector has 3x RGB settings, these are not the "projector input channel" settings to choose what input it is using (DVI in your case).



Thanks for your reply. I have tried your suggestion but it didn't make any difference.

Also i realise the RGB settings are not the input source. You have to make the RGB selection after you select DVI as the input source.

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  # 576306 2-Feb-2012 13:48
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Try this step

Power off laptop
Power on projector
Connect HDMI-> DVI cable
Select Correct input on projector
Power on Laptop
Goto nvidia or ati ccc and enable extended desktop mode
-> do you see picture? 




HTPC: Intel i3-2100 / 12GB RAM / AMD HD7750 / 480 GB SSD / 58TB Storage / MediaPortal / MadVR / Win10
AVR: Pioneer Elite SC-LX87 220W 9.2 Ch AVR
Speakers: Wharfedale Jade 7 Fronts / Jade 2c Center / Jade 5 Rears
Subs: iNuke 3000dsp 3000W proamp with 4x 15" JBL Sealed Subs
Display: Samsung 60" UA60H6400 LCD TV
Accessories: Gefen HDMI Detective with splitter


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