# Vega OS: no API or device setting to keep the display awake for non-media (signage/kiosk) apps — screensaver engages despite foreground app **URL:** \ **Category:** Feature Requests\ **Created:** [June 24, 2026, 1:33am UTC](https://community.amazondeveloper.com/t/vega-os-no-api-or-device-setting-to-keep-the-display-awake-for-non-media-signage-kiosk-apps-screensaver-engages-despite-foreground-app/28610 "2026-06-24T01:33:08Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Jim\_Shuster](https://avatars.discourse-cdn.com/v4/letter/j/e8c25b/32.png) [@Jim\_Shuster](https://community.amazondeveloper.com/u/Jim_Shuster)\ **Post date:** [June 24, 2026, 1:33am UTC](https://community.amazondeveloper.com/t/vega-os-no-api-or-device-setting-to-keep-the-display-awake-for-non-media-signage-kiosk-apps-screensaver-engages-despite-foreground-app/28610/1 "2026-06-24T01:33:08Z")
**Environment** - Device: Fire TV Stick 4K Select (product `callie`, `armv7l`), Vega OS 1.1 (TV Ship/27) - Vega SDK 0.23.8128 - React Native for Vega 0.72, `@amazon-devices/webview` 3.5.7 **Summary** A foreground Vega app that isn’t actively decoding media (e.g. a WebView-based digital-signage player) cannot keep the display on. After a few minutes of no remote input, `com.amazon.screensaver` engages and the display dims/sleeps — even though the app is foreground, VISIBLE, and continuously rendering. There is no public API to prevent this and no device Settings option to disable it. **Steps to reproduce** 1. Build a WebView app that shows static web content full-screen; launch it on the device. 2. Leave the device idle (no remote input) for ~5 minutes. 3. The screensaver engages / the display powers down. **Root cause (from device logs)** The resource manager only treats specific session types as display-keeping. A foreground non-media app does not hold any of them: ```auto resmgr-monitor-service-session [AppSessionMonitor.cpp:362] app's active session media-playback is not one of the display session(s): {"video-playback", "audio-playback", "power-normal"} ``` The app’s active sessions are `display`, `input-focus`, and (when media is present) the generic `media-playback`, none of which count — so the screensaver proceeds. **What I tried — no sanctioned workaround exists** - **Device Settings:** no option to disable the screensaver or set sleep to “Never.” - **`DisplayManager` (`kepler-graphics`):** display _configuration_ only (color depth/space, HDR, refresh rate, overscan) — no power/sleep/keep-on method. - **`kepler-media-controls`:** metadata/transport (play/pause/state) only; does not create a display-keeping session. - **W3C Screen Wake Lock** (`navigator.wakeLock`) inside the WebView: not honored by the resource manager; screensaver still engages. - Injecting a media element into the page registers only the generic `media-playback` session, which the resmgr explicitly rejects (above). **Impact** Digital signage, kiosk, dashboard, menu-board, and status-display apps — a major app category — cannot run 24/7 on Vega. This is precisely the use case for the low-cost Fire TV Stick 4K Select that customers are being moved onto via trade-in, so the gap blocks a meaningful set of developers and deployments. **Requested** Any one of: 1. A public **keep-screen-awake / inhibit-screensaver API** (turbomodule and/or a `manifest.toml` capability or privilege), or 2. Have the platform **honor a declared media-controls “playing” session** as a display-keeping session, or 3. A **device Settings option** (and/or a provisioning flag) to disable the screensaver / set sleep to Never for signage deployments. ---
**Author:** ![Jim\_Shuster](https://avatars.discourse-cdn.com/v4/letter/j/e8c25b/32.png) [@Jim\_Shuster](https://community.amazondeveloper.com/u/Jim_Shuster)\ **Post date:** [June 24, 2026, 1:34am UTC](https://community.amazondeveloper.com/t/vega-os-no-api-or-device-setting-to-keep-the-display-awake-for-non-media-signage-kiosk-apps-screensaver-engages-despite-foreground-app/28610/3 "2026-06-24T01:34:02Z")
I know this has come up multiple times, but it will continue to come up until Amazon relents. ---
**Author:** ![Ivy](https://dhm3gbtzu79o6.cloudfront.net/user_avatar/community.amazondeveloper.com/ivy/32/5637_2.png) [@Ivy](https://community.amazondeveloper.com/u/Ivy)\ **Post date:** [June 24, 2026, 8:48am UTC](https://community.amazondeveloper.com/t/vega-os-no-api-or-device-setting-to-keep-the-display-awake-for-non-media-signage-kiosk-apps-screensaver-engages-despite-foreground-app/28610/5 "2026-06-24T08:48:14Z")
Hi @Jim_Shuster, Welcome to the Amazon Developer Community! Thank you for the extremely thorough write-up and for documenting everything you’ve already tried. You’re correct - Vega’s current architecture only prevents the screensaver during active media playback sessions (specifically video-playback, audio-playback, or power-normal sessions). There is no public wake lock API, no manifest capability, and no way for a non-media foreground app to inhibit the screensaver programmatically. Regarding device settings: There are timeout adjustments available under Settings → Display & Sounds → Ambient Experience → Ambient Preferences → Advanced Settings, but these only extend the idle timeout - they don’t offer an “infinite” or “Never” option, which your signage use case requires. Current state: - No keep-screen-awake API exists for non-media apps - The platform does not honor W3C Screen Wake Lock or generic media-playback sessions for this purpose - This is a known gap for signage/kiosk/dashboard use cases I’ve logged your feature request internally. The three options you proposed (wake lock API, honoring media-controls “playing” as display-keeping, or a “Never” sleep setting) are clear and well-reasoned. However, I want to be transparent - this capability is not currently planned for the near-term roadmap. I understand this is a blocking limitation for your deployment scenario, and I appreciate you taking the time to document it so thoroughly. Warm Regards, Ivy ---
**Author:** ![John\_Westerdale](https://avatars.discourse-cdn.com/v4/letter/j/f08c70/32.png) [@John\_Westerdale](https://community.amazondeveloper.com/u/John_Westerdale)\ **Post date:** [June 27, 2026, 11:55pm UTC](https://community.amazondeveloper.com/t/vega-os-no-api-or-device-setting-to-keep-the-display-awake-for-non-media-signage-kiosk-apps-screensaver-engages-despite-foreground-app/28610/6 "2026-06-27T23:55:56Z")
I also have this issue. Any update? ---
**Author:** ![Ivy](https://dhm3gbtzu79o6.cloudfront.net/user_avatar/community.amazondeveloper.com/ivy/32/5637_2.png) [@Ivy](https://community.amazondeveloper.com/u/Ivy)\ **Post date:** [July 7, 2026, 4:21am UTC](https://community.amazondeveloper.com/t/vega-os-no-api-or-device-setting-to-keep-the-display-awake-for-non-media-signage-kiosk-apps-screensaver-engages-despite-foreground-app/28610/7 "2026-07-07T04:21:26Z")
Hi @John_Westerdale Welcome to Amazon Developer Community!! I’ve logged this feature request internally. However, I want to be transparent - this capability is not currently planned for the near-term roadmap. Warm Regards, Ivy ---
**Author:** ![Ivy](https://dhm3gbtzu79o6.cloudfront.net/user_avatar/community.amazondeveloper.com/ivy/32/5637_2.png) [@Ivy](https://community.amazondeveloper.com/u/Ivy)\ **Post date:** [July 7, 2026, 4:21am UTC](https://community.amazondeveloper.com/t/vega-os-no-api-or-device-setting-to-keep-the-display-awake-for-non-media-signage-kiosk-apps-screensaver-engages-despite-foreground-app/28610/8 "2026-07-07T04:21:30Z")