lcd panel edid eeprom error m6700 manufacturer

I"m faced with an interesting issue! One of our client Dell laptop does not show POST/Dell splash screen when powered on. Eventually, after a minute or two, the Windows login screen appears. I"ve replaced the LCD panel, updated BIOS, drained power, reseated everything possible, and even re-imaged the HD. Dell diagnostics gives me this error: LCD EDID - Unable to access EDI EEPROM, even after replacing the LCD panel. I"m beginning to suspect that the motherboard is the culprit here. Anyone seen this type of issue before?Just out of curiosity, what does Dell Support have to say about that error?

I"m faced with an interesting issue! One of our client Dell laptop does not show POST/Dell splash screen when powered on. Eventually, after a minute or two, the Windows login screen appears. I"ve replaced the LCD panel, updated BIOS, drained power, reseated everything possible, and even re-imaged the HD. Dell diagnostics gives me this error: LCD EDID - Unable to access EDI EEPROM, even after replacing the LCD panel. I"m beginning to suspect that the motherboard is the culprit here. Anyone seen this type of issue before?Just out of curiosity, what does Dell Support have to say about that error?

SOLVED! I replaced the LVDS cable, and I am now able to see the Dell splash screen and also access BIOS and PXE boot. Diagnostics no longer reports an error. It"s a beautiful day - birds are chirping, flowers are blooming, people are happy. Thank you all for the support!!!

Hi, I have read of swapping the 17" panel of iMac using an item that basically change the content of the EEPROM of the panel making it disguised for another one.

So, here is the question! I have a couple of panels from iMac G5 20", labeled LM201W01(ST)(B2). My iMac Intel 20" (A1207) uses a panel with exactly the same characteristics! So probably it would be interchangeable if the content of the Extended Display Identification Data (EDID) EEPROM is copied from G5 panel to intel panel.

I also tried holding the "D" key and powering up. The LCD flashed a series of solid color screens (Red, Green, Blue, White, Black). I assume that this means that the backlight is good. Does it also mean that the cable is good?

Not sure what else to check. I am guessing that it is eiter the LCD screen (controller board) itself or the cable. Any advice? I am comfortable replacing parts.

There is an alternative fix described on the Arch wiki but it required access to the windows driver or else creating an arcane kernel command line to override the EDID query.

The screen with the issue will probably show bad checksum and bad header errors. Plus there may be details of the manufacturer in the text - in this case there was a Dell external monitor on i2c-1 and the laptop"s broken internal screen was on i2c-2.