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[SOLVED]EDID HELL problem - I'm considering suic***!

post #1 of 15
Thread Starter 
Hi buddies,

Recently i made a lovelly HTPC (my first one), it's based on a Asus F1A75-I Deluxe and AMD Llano A6-3500. All worked well: windows 7 x64 installed, everything configured, life was happy...

...and was the time to disconnect from my monitor and connect it to the TV (a 37LG5000) in my lounge via HDMI...

...and then my TV is having a EDID issue, doesn't send it to the PC, and...

...HELL COME FROM THE DARKNESS TO MY LOUNGE, IT ATE MY DOG, R*** MY WIFE AND DESTROY ME MORALLY.

Of course, EDID=HELL, i don't understand how it's possible there is not a CLEAN way to override it in the graphic card drivers without having a engineering degree.

Well, my testing are this:

- TV doesn't send the EDID to the PC, i can't read it with "monitor asset manager", powerstrip, and so on.

- If i UNINSTALL the ati graphic drivers, and let windows to detect it like "generic vga adapter", TV shows in the windows hardware administrator (it's called that way in the english version? i have a spanish one) like "not Plug&Play generic monitor". This let me modify the "monitor" driver with and custom .inf file and things like that.

- If i INSTALL the ati graphic drivers, monitor doesn't show in the windows hardware administrator, CCC take control and detect it like "digital panel" and only shows in CCC with the name "unknow" and with a locked resolution of 640x480.

- A DVI-to-HDMI adapter doesn't change anything. TV displays "no signal". This adapter works OK with my samsung monitor.

What i want: rewrite EDID in my LG TV without any special hardware. There are people in inet who say it can be possible but nobody says clearly how to do it. I think fix the root problem is the cleanest way to save the day, because i think i don't have the possibility to make a "driver change" because simply the tv doesn't show in the hardware panel administrator.

If you can help me with this you would be saving a poor man's life. I'm desperate :-(

PS: Sorry for my english, and the text length. I'm not native english speaker.
post #2 of 15
What resolutions does the manual for your TV say it will accept over HDMI and what resolution are you trying to send to it over HDMI?
Make sure you are using the latest 64 bit drivers from ATI and not ones from WinUpdate.
Have you tried to run the card in 32bit mode with 32 bit drivers?
post #3 of 15
That's really disrespectful language to express your anger. Rape and suicide shouldn't be taken so lightly.
post #4 of 15
Thread Starter 
Sorry if i have injuried any sensibility. It's a kind of joke because I'm very angry and depressed with this problem :-(

I'll censure the words, it would be catastrophic if anyone gets offended for that!
post #5 of 15
Sorry guys, I'm not offended at all by colorful expletive language. Tassa must be from Europe where the sensitivities are, shall we say, more sensable.


I haven't used it but you might want to give HDMI Detective a whirl.. it is supposed to work wonders with these issues.. Google it.
post #6 of 15
Thread Starter 
Quote:
Originally Posted by walford View Post

What resolutions does the manual for your TV say it will accept over HDMI and what resolution are you trying to send to it over HDMI?
Make sure you are using the latest 64 bit drivers from ATI and not ones from WinUpdate.
Have you tried to run the card in 32bit mode with 32 bit drivers?

It's a FullHD TV, it accept 1080p at 60hz over HDMI.

I'm using last catalyst (12.1) from AMD page.

Not tried 32bit mode with the same computer, but it's the same with another PC with winXP and a nvidia card.

The problem is simple: the TV doesn't have any EDID because last year they change the motherboard in LG tech service and they didn't wrote any EDID in the new MB. Now they say the reparation guarantee is extinct.
post #7 of 15
You also may find an answer in here but IDK because I don't use an ati graphics card.
post #8 of 15
You might see if there is a firmware update for your TV that fixes this problem.

And some TVs require that you label the HDMI input as "PC" in order for it to function correctly.
post #9 of 15
Thread Starter 
Guys, thanks for your responses.

Quote:
Originally Posted by Puwaha View Post

You might see if there is a firmware update for your TV that fixes this problem.

And some TVs require that you label the HDMI input as "PC" in order for it to function correctly.

The TV has the last firmware.

The "PC" label thing it's done, and don't fix anything.

Quote:


You also may find an answer in here but IDK because I don't use an ati graphics card.

Any "EDID Override" solution has been studied and don't work for me. Almost every override solution are based in "change" the monitor.inf file or driver. My TV is NOT listed in the windows hardware administrator so i can't change the driver.

Quote:


I haven't used it but you might want to give HDMI Detective a whirl.. it is supposed to work wonders with these issues.. Google it.

Yes, i know that HDMI Detective and maybe would work for me, but spend 120 to import it to Spain it's a pain in the ass. And i'm not 100% sure if it works.

--------

The thing here is i know the problem, this post it's not about "i don't know what happens to my tv!". It's about i know what happen (the TV doesn't have ANY EDID) i need to reflash it to the eeprom, the question is "how?".

Teorically it's possible, people talks about it in inet, but i cannot find how.

Maybe with some piece of hardware (like HDMI Detective) or a new TV are a solution, but a expensive solution for something that may be resolved for free with a simple hdmi cable.
post #10 of 15
Not possible. If your TV has an HDMI port it has an EDID. And your TV IS listed in the Windows Device Manager..how can it not be?? If it's not, the only possible reasonings are:

- your driver is messed up,
- your HDMI cable is defective
- your TV is defective.

Any chance of trying a different video card and/or a different HDMI cable?
post #11 of 15
The EDID data is stored in a separate eprom in the TV so that it's content can be changed for different models that may use the same video chips. If no EDID data has been stored in it then the TV can not provide any either. I certainly do not suspect a cable problem since the TV accepts 1080p/60. I therfore would assume that it would also accept 1080i/60 or 720p/60 or their 50HZ equivalents since it is in Spain.
post #12 of 15
Thread Starter 
Quote:
Originally Posted by kapone View Post

Not possible. If your TV has an HDMI port it has an EDID. And your TV IS listed in the Windows Device Manager..how can it not be?? If it's not, the only possible reasonings are:

- your driver is messed up,
- your HDMI cable is defective
Quote:


- your TV is defective.

Any chance of trying a different video card and/or a different HDMI cable?


Quote:


- your driver is messed up,

- is not a driver problem, same HTPC with another TV works flawessly. Another PC (with another graphic card from nvidia, another OS, and so on...) in the problematic TV has the same problem.

Quote:


- your HDMI cable is defective

- same cable works well with another TV. Yet, i have tested with 3 cables.

Quote:


- your TV is defective.

- yes, in some way. TV broke last year, and LG technical asistance replaced the motherboard of the TV and i "think" they didn't write any EDID in the new MB.


The question is, it must be exist any procedure for write a new EDID in the TV because corruption o something like that. And i think it can be a method a normal user can do.
post #13 of 15
Download GetEDID from http://www.avsforum.com/avs-vb/showthread.php?p=18165143#post18165143 and unzip it to a folder on your drive.
Run OutputToFile.bat
Zip and post your GetEDID.log and the txt files that get created.
post #14 of 15
You never tried the HDMI inputs on the TV since the repair? My understanding is that the HDMI will not work without the EDID data so does the TV work with other components connected via HDMI?
post #15 of 15
Thread Starter 
Ok, it's solved. My theory was correct. The TV had a corrupt EDID in all 3 HDMI ports. The best solution was as i said, fix the root of the problem, reflash the EDID data.

You need a registered version of powerstrip, a compatible hardware, know what to do and a bit of luck.

The guide i followed is this: http://www.avforums.com/forums/11461207-post39.html

I had to take my girlfriend's old PC, connect it a old AGP Radeon 9550 card with DVI output. Use a DVD-to-HDMI adaptor to connect to the TV HDMI ports and cross the fingers. And it worked! I can't barely believe it.

Powerstrip said the EDID was corrupted, i flashed a new one (from a 32" and mine is 37" but well, are the same hardware and it works) and 10 seconds later my HTPC detected the TV and all resolutions and hz options were unlocked.

You DON'T know how happy i am.

Thanks to all for your help and interest.
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