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usb-c-display-alt-mode-troubleshooting

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Fix USB-C external display issues on Linux

Software Engineering#troubleshooting#linux#kernel#dock#usb-c#displayport#alt mode
Authorrenne
Version1.0.0
Installs0

System Documentation

What problem does it solve?

This Skill helps diagnose and resolve persistent issues where high-resolution external displays fail to work correctly over USB-C connections on Linux laptops, even when they function on other operating systems.

Core Features & Use Cases

  • Diagnose Negotiation Failures: Identifies common causes like USB Billboard devices, empty Type-C device nodes, and DPCD read errors.
  • Guide Troubleshooting Steps: Provides a structured approach to checking kernel logs, USB devices, ACPI, and firmware settings.
  • Use Case: You've connected your Linux laptop to a USB-C dock, but your 4K monitor only shows a low resolution or a ~30Hz refresh rate, while Windows on the same hardware works fine. This skill guides you through the specific Linux-related checks to pinpoint the cause.

Quick Start

Use the usb-c-display-alt-mode-troubleshooting skill to diagnose why my external display is not working correctly over USB-C on Linux.

Dependency Matrix

Required Modules

None required

Components

references

💻 Claude Code Installation

Recommended: Let Claude install automatically. Simply copy and paste the text below to Claude Code.

Please help me install this Skill:
Name: usb-c-display-alt-mode-troubleshooting
Download link: https://github.com/renne/skills/archive/main.zip#usb-c-display-alt-mode-troubleshooting

Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
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