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Document power state restoration, WoL, WoWLAN and LOM #182

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davide125 merged 1 commit into from
Apr 7, 2025
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Document power state restoration, WoL, WoWLAN and LOM #182

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13 changes: 13 additions & 0 deletions docs/project/faq.md
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Expand Up @@ -82,3 +82,16 @@ Make sure you have the GPU drivers installed. If screen recording is still slow,

## Chromium / VS Code / Slack / Discord / some other Electron app or Chrome-based browser stopped rendering after an update.
This is an [upstream Chromium bug](https://bugs.chromium.org/p/chromium/issues/detail?id=1442633) affecting all Chromium-based frameworks such as [Electron](https://github.com/electron/electron/issues/40366). You have to manually delete your shader cache (e.g. `~/.config/Slack/GPUCache`). We can't do anything about it until the fix is backported/released to users.

## Start up automatically after a power failure

This configuration is available at `/sys/bus/platform/devices/macsmc-reboot/ac_power_mode`. Valid options are `off` and `restore`, which is equivalent to the toggle in System Settings on macOS. It is not possible to set the machine to power on unconditionally when power is connected.

## Wake for network access (WoL/WoWLAN)

- Wake on LAN does not work. The BCM57762 gigabit Ethernet controller supports WoL via magic packets, it can be enabled with `ethtool -s REPLACE_WITH_YOUR_INTERFACE wol g`, but the machine does not wake up when it receives magic packets.
- Wake on Wireless LAN is untested.

## Lights Out Management (LOM)

LOM is only supported on devices with [10Gbps Ethernet cards](https://support.apple.com/guide/deployment/dep580cf25bc/web) enrolled in a mobile device management (MDM) solution. This feature has not yet been reverse engineered.