SteadyScreen Admin

 

Page

Screen
live screenshot of the device's display

Auto Reloading

Status

Network

Saved networks

In range

Hidden network

Display

Remote access (SSH)

This is the kiosk account password, used for ssh and for sudo. Turning password login on does not change it.

Account pairing

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Admin page password

Saved, but not used yet. Emailing a temporary password needs a server to send it, which does not exist. Until then Forgot password gives you the ssh way back in.

Clock

Updates

Software

Updates are signed and are checked against that signature before anything is installed. Installing restarts the browser; a failed update rolls itself back.
Operating system
An OS update can fail, and not every machine can be tested first.
This replaces the whole operating system on this display's spare boot slot and restarts it. It is designed to fall back on its own — if the new system does not come up, the next boot returns to the one running now, and nothing is lost. But hardware varies, and no release can be tested on every configuration that exists. Only go ahead if you have a way to recover this machine physically — a flash drive to reflash it, and access to the device itself. Proceed at your own risk.

Update settings

When this is off nothing is installed unless someone presses Install now above. Turn it off for a display in a shop, where an update arriving on its own is a surprise to somebody else's business.
latest gets new builds before they are proven. Use it on a bench machine, not on one a shop depends on. The channel applies to both the software and the operating system.

Rollback snapshots

What this display was, before each of its last five updates — the software, the system files an update changes, and the settings. Restoring one puts all of it back as it was at that moment and reboots. Anything changed since is undone with it.

They cost almost nothing: each holds every component, but files that did not change between updates are shared rather than copied.
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Printing

Audio

Sound follows the screen: the default is the HDMI output with a display on it. HDMI provides no volume control of its own, so the level here is applied in software on the way to the card — which also means it is the only volume control, as the display's own remote will not change it. A page has to be playing audio for anything to come out; use Test tone to check the wiring on its own.

Keyboard

The on-screen keyboard for touch displays. It appears when someone touches a text field on the page being shown.
Key size scales the whole keyboard, keys and text together. It is capped against the screen height, so on a short display the larger settings still fit — they stay distinct from each other, but a bigger key on a small panel is necessarily less big than on a tall one.
Nudge moves the keys away from a dead patch on the touchscreen. Only the keys move — a press beside them still will not dismiss the keyboard.

Permissions

What the page being shown is allowed to ask this device for.

Screensaver

What the display shows when nobody is using it. A touch brings the page straight back.
Both times count from the last touch, so turning the screen off sooner than the screensaver means the screensaver never appears. With an HDMI-CEC adapter (see Display) the TV is also put into standby, and woken again the same way. Without one, a television shows “no signal” while off — try one display first.

Startup behaviour

Offline

* While there is no network the device shows its own network page instead of a “cannot reach the page” error, and loads the real page as soon as the site answers. After the timeout above it stops waiting and loads the page from cache instead — a menu board that reboots during an outage comes back showing the last menu it saw, rather than a diagnostic screen nobody in the building can act on. Set 0 to wait indefinitely. While the site is unreachable a 2px red edge marks the screen as offline.

Show the last page when there is no network

With this on, a display that cannot reach its site waits a minute on the network screen and then shows a picture of the last page it had on screen, taken while it was working and refreshed hourly. Nothing is written over the picture — it is the page, as it was, framed by the red offline edge. The moment the network comes back the real page loads. It applies at boot and equally in the middle of a run; a display whose page is still rendered carries on showing it, because a live page beats a photograph of one. Leave this off for anything people touch, where a stale page that looks live is worse than a screen that says what is wrong.

Network watchdog

Checks once a minute that this display can still reach its default gateway. If it cannot, it renews the connection, then re-activates it, then restarts NetworkManager, and only after all of that has failed does it reboot — and it will not reboot a machine whose network has never worked since it started, because that would only repeat the boot it has already had. A site that is down is not a network fault and never triggers any of this.

Remote support

Install a ScreenConnect access agent on this display, so it can be reached from your ScreenConnect console the way your other machines are.
Paste the link exactly as the console gives it, including everything after the ? — that is what carries the name and the custom fields, and an agent installed without them arrives unnamed.

Power