A runtime error 91 usually occurs when you try to use a program that contains a corrupt/incompatible type of code. This problem can be caused by a missing DLL, a corrupted file, a virus infection, or an error in the registry.
Incorrect or invalid EDID (Extended Display Identification Data) information from the monitor’s EEPROM (Electrically Erasable Programmable Read Only Memory) can lead to problems such as incorrect display module settings. We recommend that you contact your personal monitor manufacturer for assistance in releasing or replacing the EDID using an INF file.
Error 91 regularly occurs when the connection to the product is difficult and the download is also missing. More importantly, this error appears when you use a workout on your PC and there are various “factors” issues in it.
Without EDID, hardware video sources have little ability to communicate with projection equipment, resulting in unmatched resolution for displays and video source equipment. Traditionally, the most common problems are black screen, image distortion, flickering, etc. How does EDID work? EDID allows video and image sources that map devices to communicate in a real “language”.
How does Windows Override the EEPROM edid for a monitor?
Windows extracts the updated EDID information from the INF and makes it available to components instead of using the EDID EEPROM information, overwriting the EDID EEPROM accordingly. In addition to actually overriding the EDID information, the vendor can override the primary monitor name and preferred glare resolution.
How do I find the EDID on my monitor?
To write down the EDID, open the Nvidia Control Panel and select View System Topology. To export, search for edid, display, then follow the EDID link below. In the EDID management dialog, select Export EDID and save the EDID. EDID is saved text simply because files.
What to do if your EEPROM has an incorrect EDID?
Therefore, incorrect or invalid EDID information, which is always present in the monitor’s EEPROM, can lead to problems such as setting incorrect display modes. There are two ways to fix the EDID: The standard response is to have the customer take the rear monitor to the supplier, who will flash the EEPROM with the correct EDID and return the monitor to the customer.
Is there a way to override the EDID on a monitor?
Such EDIDs can lead to conditions such as setting incorrect display options. This white paper describes how monitor vendors can prevent a monitor from being flashed. This material describes how these INFs are implemented.
How to read edid from an I2C bus?
EDID is usually implemented with an I2C EEPROM connected directly to the AUX lines. The “read edid” procedure is actually nothing more than reading “0xA0”, a certain standard EEPROM address, i2c via AUX. For the first time, I sniffed this bus and saw a simple “read” command at this address, which I had seen in many other places before almost falling off my husband and chair.
Can you read EDID data from a DVI monitor?
Reading EDID data from DVI to write EEPROM is a common use of an Aardvark I2C/SPI host adapter and a DDC-dvi drop cable. Although DVI monitors are described below, similar details can be used for newer DVI devices. The purpose of this key article is to show you how to read a few bytes from DVI Watch to EEPROM.
Why do I have incorrect EDID on my monitor?
For example, a monitor driver queries its Windows Display Driver Model (WDDM) driver for its brightness request interface during initialization, but the Device Driver Interface (DDI) is typically supported by EDID. Thus, erroneous or incorrect EDID information in the EEPROM of all monitors can lead to problems such as setting incorrect display formats.
Why is my EDID Checkum wrong in xdpyinfo?
To be honest, I get just about every weird console message that thinks my EDID checksum is wrong. But since xrandr does it best, this can’t be the source of the problem. Also, 96 dpi is definitely some sort of “standard”, it looks like most xdpyinfo wants to recalculate your current dimensions afterwards.
What is a monitor EDID?
EDID is an industry standard for AV sources and display devices that instantly communicates manufacturer specifications and statistics between devices. This allows your AV source to send the best and most attractive signal data to your display, TV or projector to provide the most favorable picture results.

I’m a writer for uscfr.com. In my opinion, technology should make our lives easier, not more complicated. That’s why I enjoy breaking down complex topics and explaining them in a way that everyone can understand. In my free time, I can be found tinkering with new devices or coding up new apps.