LG 32LH3000 LCD + Mac Mini + HDMI = No Signal

Hello guys, hope you can help me with this one that is driving me crazy.
So here It is the setup: Intel 2007 Mac Mini running Snow Leopard. LG 32lh3000 LCD. DVI to HDMI cable and the result is I get a "no signal message". Using that very same cable with my 2007 Macbook Pro and it instantly gives me a perfect image.
Using a VGA to VGA cable in the MAC Mini works great but with the obvious quality loss compared to the HDMI.
I VNCed to the Mini through the MBP and tried to play with the resolutions to see if anything happened but I got nothing, still no image using the DVI to HDMI.
I dont know what else to do, can you help me?

Hello guys,
I just wanted to give you a brief update on the situation that, for a short moment, I thought It was solved.
Yesterday I tried once again to see If the Mac Mini wanted to “communicate” with my LCD, do I did the usual, connected my dvi -> hdmi to the mini and to the LCD; selected the correct hdmi input on the LCD and hit the power button on the mini.
I don’t know what happened this time but I saw the grey screen with the apple meaning the system was booting, I thought it had came alive somehow, but, when It was time to show the desktop, It turn back to the usual “no signal” screen.
The weirdest thing is that I didn’t do anything different from the other multiple times that I tried to connect the Mini and the LCD, I did the same thing that I tried before without getting anything, but this time, at least, I saw the Mini booting in a fabulous 1080p resolution...
Hope you can give me some help.... thanks!

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ive had my 1021 for about 2 months and i think its great. Do you like yours?
i have 5.1 using optical cable to one of the optical in ports on the 1021. But you will need an optical-to-miniOptical adapter tip to use in the mini.
then make sure that any app through which you want 5.1 has that specified in its prefs. (like VLC)
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Do you have a second computer at your disposal? In cases like this, the best debugging method is to use a second computer and create a screen sharing setup under OS X Leopard, or a VNC set up if the second computer is not a Mac running Leopard. That way you will be able to see exactly what the mini is doing, even though the TV is blank.
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I figured out the 'problem'
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I guess the "Stuck CD" must have evaporated
Good new is, I now know every single way to get the disc out should this happen to me for real (short of completely disassembling the Mac Mini). For now, all I can do is laugh (quietly so my wife doesn't hear).
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NOTE: This appears to be unrelated to the "screen flickering" that has been noted previously.
I'm using a fresh new Mac Mini 2012 with an LG L246WP LCD monitor. The monitor has HDMI, VGA and Component video inputs.
When I attach the monitor to the Mini DisplayPort output, using a Mini DisplayPort to DVI adapter connected to a DVI to HDMI cable, the display functions properly at all resolutions - including the native 1920 x 1200 resolution that I use it at normally. All resolutions are clearly displayed in the "Displays" System Preferences pane. The display looks perfect, functions properly.
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This gets pretty technical.
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How did I come to this conclusion and develop the fix? A nearly identical problem description showed up on the following website, with details on how this user fixed the issue:
http://byuu.org/articles/computing/edid
They used a convoluted process that involved dismantling the monitor and flashing the EDID on the monitor itself. It fixed their problem. I'd prefer not to go through that process just because one computer has a problem with it. Frankly, I'd prefer if the new Mac Mini performed properly in the first place.
TL;DR: The Mac Mini 2012 doesn't work right with the LG L246WP through the HDMI output. Everything else works fine with it. This is very uncool. It's most likely to be an issue with the driver for the Intel HD Graphics 4000 GPU that are bundled with OS X 10.8.1. The Mac Mini 2012 won't update to 10.8.2 (yet), so I can't test it.
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Problem Resolved. But it was complicated. And a huge pain in the rear.
TL;DR: I flashed the EDID as described here. This is not recommended for the weary. Ideally, Apple should release an update OS X that will include the updated Intel HD Graphics 4000 drivers that utilize the CEA flag properly.
Here's the detailed version. As mentioned above, this isn't recommended for the weary. An improper (or interrupted) EDID flash can have seriously unpredictable effects on a monitor's performance.
Step 1: Get a Windows PC set up with a floppy drive and find a floppy disk. Use this system to format the floppy as a MS-DOS Boot Disk and copy over the "ddcw" program described at the aformentioned link.
This took awhile, but I was able to cobble together a temporary frankensystem with parts I had laying around. In installed XP and formatted the disk with XP's format tool.
Step 2: Grab EDID data from the monitor, modify it to disable CEA mode at bit 127 and make sure bit 128, the checksum, is appropriate.
This also took awhile. Several graphics cards I tried could not read or write EDID data. I ended up swapping AGP cards in my frankenstein box until I found one that worked - a generic GeForce4 4200.
Once the EDID data was written to the floppy, I edited the text file containing the EDID data to change the last two hex octets from "01 33" to "00 34" (00, to disable bit 127, and 34 is 33 + 1, which satisfies the checksum) and formatted the text file to match the sample included in the EDID_Write.zip file. Your mileage may vary - make sure the checks.
Step 3: Write EDID data to the monitor.
The link above mentioned three options: Easy (monitor's EDID is unprotected - write away!), Hard (monitor's EDID is protected - use service mode to attempt a fix), and Very Hard (monitor's EDID is protected, hardware modification is required).
Luckily my LG246WP simply needed to be put into service mode as described at the link above (menu + power) and once started up in service mode, I simply enabled "Aging Mode" (whatever that means) and attempted a DDCW write of the updated data.
Step 4: Profit!
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2010 Mac Mini HDMI 1080p output to Samsung B750

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HI, I have the new Mac mini with HDMI port which is hooked up to my Pioneer plasma. I used to use a macbook pro for this and stream video using elgato's eye tv software from my mac pro upstairs to my tv setup downstairs using my 802.11N network running at 5 ghz. It worked great full 5.1 surround and 1080i video streaming flawlessly through the air. Then I sold my MBP and got the new mini, cloned my backup of the MBP to the new mini and I was up and running with my same system which was 10.6., I then updated it to 10.6.4 and all seemed great. The strange issue I have now is that when I am connected to my N network the video and audio that I am streaming is choppy like it is if I use my G network to do the same job which was never able to handle that much data and would be choppy when ever I tried it.
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Any thoughts would be appreciated.
Thanks

You can check your signal by holding down option and clicking on the Airport icon in the menu bar. Look at the transmit rate via N, and G. Noticeable difference?
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When I replaced my previous computer running EyeTV and Plex with this one, while the "easy" way out is to simply load the OS over the backup, I would never do that. I always take the hard way" and install the OS the way I want it, and, then copy back the files I want. Yes, it takes some time, probably, several hours. This means I also have to re-install any software, which I am more than happy to do. I save the compressed backup (using Apple disk manager) for around a year in case I forgot a file or settings. By doing it in this manner, it's pretty much impossible to have any difficulties, don't have to worry about old files hanging around, get a chance to re-organize things as I copy them back, get a chance to not reload things I may have put there at one time but never used, etc. IOW, I end up with a clean machine.
Archive and install or any other version of other techniques, not for me. I just like things simple, guaranteed, and clean. Easy way out is never of interest.

LG 32LH3000 LCD + Mac Mini + HDMI = No Signal

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