Steam Machine gets stuck on black screen after SteamOS update – blue LEDs pulse but system won't boot

Aperta
  • Qualcosa non va?
#3,016 0 commenti 1 reazione 0 assegnatari Vedi su GitHub

Nessuno ha ancora preso questa issue.

Valutazione

Difficoltà
4/5
Tempo stimato
3-5 giorni
Idoneità per principianti
30/100
Tipo di issue
Bug
Chiarezza
Abbastanza chiara
Stato di attività
Attiva
Stack tecnologico
linux
Ambito
operating-systems

Direzione di ricerca

Start by comparing the working Neptune 618/EFI-A installation with the failing Neptune 72/EFI-B installation, using the available system logs and boot records to identify where startup stops. Check the SteamOS update, AMD graphics/DRM, kernel, firmware, and bootloader changes associated with the regression, and look for any existing SteamOS issue tracking the same rollback-to-Neptune-618 behavior. The issue is done when there is a confirmed cause or tested fix, or a documented workaround that avoids reinstalling SteamOS or erasing user data.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Descrizione

Your system information
  • Device: Valve Steam Machine (2026)
  • Steam client version: Not yet confirmed
  • SteamOS version: 3.8.28, build 20260922.1 (currently using rollback)
  • Working kernel: Neptune 618
  • Problematic kernel: Neptune 72
  • Opted into Steam client beta?: Not confirmed
  • Opted into SteamOS beta?: Not confirmed
  • Have you checked for updates in Settings > System?: Yes. Updates are available but not installed.
Please describe your issue in as much detail as possible

After updating SteamOS, my Steam Machine developed an intermittent startup problem.

The updated version successfully booted at least once and worked normally. However, after restarting, the machine began getting stuck during startup with a completely black screen.

When this happens:

  • The blue LEDs fade in and out continuously.
  • The fans continue spinning.
  • The monitor receives no picture.
  • My Steam Controller connects, but pressing the Steam button does nothing.
  • Pressing the power button once has no effect.
  • Holding the power button forces the machine to shut down.
  • Turning it back on results in the same problem.

I have tested two different monitors and both HDMI and DisplayPort, with the same result.

Rolling back to the previous SteamOS version restores normal operation.

The working installation uses the Neptune 618 kernel on EFI-A. The problematic updated installation used Neptune 72 on EFI-B.

I have checked the available system logs but haven't found an obvious AMD graphics or DRM error.

I would like to know whether this is a known SteamOS update, kernel, firmware or bootloader issue and whether there is a fix that doesn't require reinstalling SteamOS or wiping my data.

Steps for reproducing this issue
  1. Boot the Steam Machine using the updated SteamOS version (Neptune 72).
  2. Use the system normally.
  3. Restart the machine.
  4. The machine gets stuck with pulsing blue LEDs, spinning fans and a completely black screen.

The issue has occurred repeatedly. Rolling back to Neptune 618 restores normal startup.

Lingua principale
Nessun dato sulla lingua
Stelle
2.7k
Fork
89
Nessuna PR unita negli ultimi 30g

Preparare l'ambiente

Questo progetto non fornisce container di sviluppo, Dockerfile né guida per i contributori, quindi l'ambiente è a tuo carico: parti dal suo README e consulta la nostra guida al primo contributo per i passaggi generali.

Come iniziare

  1. Leggi tutta la issue e poi la guida ai contributi del progetto.
  2. Commenta sulla issue per dire che te ne occupi tu — evita che due persone facciano lo stesso lavoro.
  3. Fai un fork del repository e lavora su un branch.
  4. Apri una pull request che faccia riferimento al numero della issue.

Altre issue di ValveSoftware/SteamOS

Tutte le issue di ValveSoftware/SteamOS

Issue simili

Altre issue su Operating Systems

Ricevi le nuove issue nella tua casella

Un breve riepilogo di issue GitHub adatte ai principianti.