Bug:After Used OpenCore Legacy Patcher Tutorial,DP cant output the video

[nakano0505]

What ThinkCentre model do you have?

M73

What are your specifications?

CPU | Intel Core i5-4590T
Internal GPU | Intel HD Graphics 4600
RAM | 8GB of DDR3-1600
Storage | 512GB SATA SSD
External Display | TCL 4K TV (3840x2160 @ 60Hz)
Ethernet | Intel Ethernet Connection I217-V
Internal WiFi/Bluetooth | DW1650

What is your configuration version?

• I am using the latest version of the configuration at the time of reporting, or I will note the version I am using in my bug report below.
• I am using the legacy version of the configuration, and I am using Catalina or below.

What version of macOS/OS X are you using?

macOS sonoma 14.7.3

What is the bug?

When I first started the installation, DP output graphics normally, but my hardware acceleration was not working. I followed the instructions and used OpenCore-Legacy-Patcher and selected "Start Root Patching". After my machine restarted, I observed that my OpenCore could output video normally. However, after the system started and booted, my monitor displayed "No video signal input". Even after re-plugging the cable, it still could not display graphics output.

What are the steps required to reproduce the bug?

When initially starting the system and completing the initial setup, my machine displayed output normally, except for the hardware acceleration not working. After using the "Graphics: Intel Haswell" option in OpenCore-Legacy-Patcher, it executed successfully without throwing any errors. It finally instructed me to restart the machine. After this, video output was only able to display the OpenCore selection to boot the hard drive and the Apple icon at 1600*1200@60Hz during the boot process. After the system starts, the machine loses video output.

[nakano0505]

At the same time, after multiple attempts, even after following the BIOS settings recommended by this project, I still cannot display video output after the system starts. When entering recovery mode, the system starts very slowly, but the recovery mode can display videos normally without hardware acceleration, instead of a black screen.