Auxiliary Channel Error Messaging for Inoperative Graphics
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Solution Overview
Problem
Information handling systems face challenges in communicating error information to users when the display fails to reach an operational state due to restricted GPU operability, requiring users to contact technical assistance for error code interpretation, leading to increased costs and slower error correction.
Innovation Solution
A system and method that utilize an auxiliary display channel to present error information as text messages, where an error engine detects errors and communicates them through the DDC or I2C channel, and an auxiliary channel selector configures this channel to convey error messages independently of the graphics subsystem, allowing error reporting even if the graphics subsystem is inoperative.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If error information is communicated through the graphics subsystem, then error messages can be displayed, but the display cannot show errors when the graphics subsystem is inoperative
Solution Approach 1:
The patent introduces an auxiliary channel (such as a general-purpose I/O pin or serial communication interface) as an intermediary to transmit error information from the information handling system to the display device. This auxiliary channel operates independently of the graphics subsystem, allowing error messages to be communicated even when the graphics subsystem is inoperative. The display device includes a receiver that captures signals from this auxiliary channel and a generator that converts these signals into visual error messages.
2Measurement precision
If users contact technical assistance for error code interpretation, then accurate error identification is achieved, but user time and manufacturer costs increase
Solution Approach 1:
The patent enables the display device to autonomously interpret and display human-readable error messages by incorporating an error message generator that converts received error codes into meaningful text. This self-service capability allows users to immediately understand the nature of the error without contacting technical assistance, thereby reducing both the time required for error correction and the costs associated with technical support while maintaining accurate error identification.
3Loss of information
If LED lights or beeping codes are used for error communication, then error information can be transmitted, but user understanding and interpretation become difficult
Solution Approach 1:
The patent replaces the mechanical/physical error communication methods (LED lights and beeping codes) with an electronic text-based communication system. The display device receives error codes through an auxiliary channel and uses a generator to convert these codes into readable text messages that are displayed on the screen. This substitution transforms abstract physical signals into concrete, easily interpretable text, significantly improving user understanding while maintaining effective error information transmission.
Data Source
AI summary
Information handling system errors are presented at a display with the information handling system graphics subsystem inoperative by communicating an identified error to the display through an auxiliary channel and generating a presentation of the error information with a microcontroller of the display. For example, errors determined by BIOS firmware running on a chipset are communicated through a DDC or I2C channel from the chipset to the display so that textual error messages are generated at the display without the use of the information handling system's graphic processor to generate an error message image.