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ravynsoft / ravynos

A BSD-based OS project that aims to provide source and binary compatibility with macOS® and a similar user experience.
https://www.ravynos.com
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Disable UART on boot #416

Closed markusbkk closed 9 months ago

markusbkk commented 10 months ago

As previously discussed on Telegram, modern AMD64 hardware doesn't fare too well when it comes to certain ACPI feature sets. Chief amongst them ACPI enumeration for UART (on my own Framework 13 it actually leads to a boot failure and a cryptic report about the laptop's lid state).

I suggest we disable UART on boot (at least on AMD64), as this is widely documented (1, 2) to break on newer boards.

UART can either be disabled through /boot/device.hints or /boot/loader.conf.

In both cases we'd set hint.uart.0.disabled="1".

mszoek commented 9 months ago

Fixed with commit 70f773d4989aa7fcf85eee305f04946bd9249078