Steam Deck Jumpscare

Date: 2024/06/24
Categories: Tech, Random
Tags: Steam Deck


Image source:

The trick

The initial idea is to utilize X11 Forwarding feature from SSH daemon to launch an image viewer remotely on the Steam Deck.

Edit your /etc/ssh/sshd_config. Look for this line then change the value from no to yes

X11Forwarding yes

Start the SSH daemon

$ sudo systemctl start sshd

Setup your password for Steam Deck

$ passwd

Find out your Steam Deck IP address

$ ip a

SSH into your device

$ ssh -X deck@YOURDECKIP

Export the main display:

(deck@steamdeck ~)$ export DISPLAY=:0

I was strugling to find an image viewer that fit the requirement below:

Modern Qt apps have issue with X11 forwarding.

(deck@steamdeck ~)$ gwenview
qt.qpa.xcb: could not connect to display
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, xcb.

Aborted (core dumped)

GTK apps are not reliable either.

(deck@steamdeck ~)$ org.gnome.Loupe
F: Not sharing "/esp" with sandbox: Ignoring blocking autofs path "/esp"

(loupe:2): Gtk-WARNING **: 23:09:00.913: Failed to open display

However, Steam-related binaries are fine with X11 forwarding. When I typed steam then press tab key, a lot of steam-* executable binaries appears. One of them is super interesting.

(deck@steamdeck ~)$ steam-http-loader -h
usage: steam-http-loader [-h] uri

Launch a link in the steam browser.

positional arguments:

  -h, --help  show this help message and exit
(deck@steamdeck ~)$

This is what I need precisely! Let’s pull the trigger.

(deck@steamdeck ~)$ steam-http-loader

This works both in Gaming mode and Desktop mode.

I believe the Chromium Embbeded Framework (CEF) that used by Steam for its browser engine is capable to play video file as well. You may want to prepare the jumpscare content properly by using video with sound. Just make sure the file size is small so it could be loaded fast.

My first and last victim is my dear wife. Enjoy the scream.

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