Solutions for Wake on Lan, no HDMI output - Docked Steam Deck (no ethernet required) for $15
Solutions for Wake on Lan, no HDMI output - Docked Steam Deck (no ethernet required) for $15
Two issues have plagued the official dock for me:
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After waking up from sleep, HDMI is black unless AC adapter is unplugged and re-plugged
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Wake on Lan doesn't work because the deck going to sleep seems to put the dock to sleep, the Ethernet lights turn off
I solved both using a smart plug. I have a Sonoff (S40 Lite) and a TP-Link Kasa, both have Python packages to control via terminal which led me to choose them.
To enable Power on AC attach:
Shutdown the steam deck fully (not sleep). Hold Volume '+' button and power on to go to BIOS. Go to setup, power, Power on AC Attach and enable.
I set up SSH keys for the steam deck from my phone using Termux on Android. I power it off using an ssh command from my termux, then use a python command to turn off the smart plug as well (you can use the web app or smartphone app just as well, using python just let's me link it all into one command)
To turn on, I just turn on the smart plug and seems to fix the HDMI black screen issue too!
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Using the official dock, I don't have a picture until I sleep cycle* my Deck if the TV is not on before waking it up. There is no picture on either display until then.
Also I am using a tiny keyboard for waking up the Steam Deck and it never works if I replugged the device without another sleep cycle.
It's not great, but at least there are some workarounds. Which work for me.
*Sleep cycle means waking up the device and putting it back to sleep at least once
Hm interesting - try unplugging the charger from the back of the dock and plugging it back in while the deck is still awake, that's what this approach hopes to automate