How to Fix Strange display issue
This mini-guide provides a structural approach to troubleshoot and fix the issue.
Prerequisites
- Confirm your hardware specifications (CPU, GPU, Motherboard).
- Ensure you have a bootable recovery USB and backup your EFI.
Fix Steps
- Check if your GPU requires WhateverGreen or specific boot-args (e.g., agdpmod=pikera).
- Ensure Metal acceleration is fully supported for your macOS version.
- Update Lilu and WhateverGreen to the latest versions.
Verification
- Reboot and verify if the functionality is restored and stable under typical usage.
Original Question:
Hi everyone.
I have a working dual-monitor setup with a NVIDIA GeForce GTX 760.
Until short my monitors consisted of 1) some AOC 21,5" (1920x1080) monitor and 2) an quite old Acer 22" (1680x1050).
"Until short" means, the second monitor (the Acer) died a couple of days ago and I replaced it with an PB Viseo243D (still had this somewhere in storage).
Now, my issue is: MacOS does not seem to recognize the new monitor but thinks that the Acer is still connected and thus I cannot change the...
Read more
I have a working dual-monitor setup with a NVIDIA GeForce GTX 760.
Until short my monitors consisted of 1) some AOC 21,5" (1920x1080) monitor and 2) an quite old Acer 22" (1680x1050).
"Until short" means, the second monitor (the Acer) died a couple of days ago and I replaced it with an PB Viseo243D (still had this somewhere in storage).
Now, my issue is: MacOS does not seem to recognize the new monitor but thinks that the Acer is still connected and thus I cannot change the...
Read more
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