The412BannerandThe412Banner
da42a5d7a7
DirectAudio from its own release: driver set per Proton audio interface (CachyOS fix), the Steam client's own DirectAudio sink, binaries out of tree Games - Two driver sets ship from the pinned DirectAudio release (tools/directaudio/release.env = directaudio-linux-v1.1.0, sha256-checked by tools/directaudio/fetch.sh in CI and build_local.sh): linux-wine11 for Valve Proton 11 / Experimental / GE-Proton, and linux-wine11-systhread for Proton-CachyOS, whose Wine carries the system-thread mmdevapi interface. steam-compatibility picks by whether the Proton's own winepulse.so imports PsCreateSystemThread, never by the version string (both say wine-11.0; the wrong set is silence). No matching set: DirectAudio off, Proton's audio runs, logged. - Proton-CachyOS's launcher pre-sets WINE_AUDIO_DRIVER=pulse,alsa and its mmdevapi reads that before the registry (Valve's and GE's do not read it): the wrapper exports WINE_AUDIO_DRIVER=directaudio,pulse as well as writing the registry. On CachyOS this also makes DirectAudio engage on a game's first launch. - A wineserver from an earlier Steam verb can save its in-memory registry over the appended Audio value; the wrapper says so when one is live. Writing through it (wine reg add) and creating a missing prefix first (proton run wineboot) were tried on the device and withdrawn: a second Proton/Wine run inside Steam's launch sequence got launches aborted. - Tests: both sets, no set, no prefix (34 pass). Steam client audio - DirectAudio = module-directaudio-native-sink, the game driver's AAudio engine inside the PulseAudio daemon, one step from Android (adaptive buffer, two-burst floor, primed ring with fades, reopen on route change, watchdog, limiter). Default. Shared output = the previous relay route, kept. New pref clientAudioRoute; the old boolean is not read. If the native sink cannot open its stream the daemon keeps running (.nofail) and ensureClientSink loads the plain AAudio sink instead, logged to audio.log. Audio bundle stamp bumped. Out of tree - app/src/main/assets/directaudio/ is generated and ignored; tools/directaudio-relay/ and the vendored module-directaudio-sink.c + da_relay_proto.h are gone; tools/aaudio-sink keeps only module-aaudio-sink (the fallback). The release carries the relay and sink field fixes by MaxsTechReview (#338), credited there and in its AUTHORS. Device-proven on an AYANEO Pocket FIT: client sink 12 ms / 4 ms bursts, 0 underruns; FEZ on cachyos-11.0-20261005-slr on DirectAudio (took pulse before); FEZ on Proton Experimental unchanged; Curse of the Dead Gods on CachyOS from a cold prefix, DirectAudio on first launch. Co-authored-by: The412Banner <[email protected]>
DroidDeck brings the SteamOS experience to Android: Valve's Steam client in Big Picture on your Adreno handheld, with Windows games through Valve's ARM64 Proton.
Note: DroidDeck does not have a stand-alone website. Do not click on any download links from websites claiming to be the DroidDeck team.
Requirements and install
Use Android 9 or newer on a supported Adreno device (730 or newer, or 8xx). Adreno 6xx is experimental: DirectX 11 uses DXVK 2 and may run, and DirectX 12 games can still crash. Mali, Xclipse, PowerVR, and Adreno 710 are unsupported. No root is required. Allow about 3 GB for the runtime and 1.1 GB more for the desktop and emulators. Install the APK from Releases, install the Linux runtime, then press Play and sign in. Steam downloads on first launch. Install Desktop & apps to use the desktop and emulators. The Store installs Linux apps and games from Flathub (ARM64 builds) with Flatpak; with additional options to install Appimages and set up scripts.
Before Steam launches, you must turn off Restrict child processes in Developer options. If this option is not available in developer settings (Android 12 and 13 devices), first launch of Steam will present a "Fix it for me" button, which will help automate the setup process.
Community
Join the DroidDeck Discord for help, Preview builds, and device reports. Bug reports go in its #bug-reports forum; attach the session folder from Download/DroidDeck/ so the logs come with it.
Build
Run tools/build_local.sh with Docker, Java 17, the Android SDK/NDK, and zstd installed. It builds the ARM64 audio sinks from PulseAudio 13.0 and packages them into the APK at app/build/outputs/apk/release/app-release.apk. Set DROIDDECK_PA13_SOURCE_DIR to an existing PulseAudio 13.0 source directory to skip downloading it. To install the APK on an attached device, run tools/deploy_local.sh.
Limits
Compatibility and performance vary by device; hardware validation is limited. Desktop compositing uses software rendering. Firefox sandboxing is reduced under proot. See the session logs in Download/DroidDeck/ when diagnosing problems.
Credits and licence
GPL-3.0. Runtime, shim, input, and controller work build on WinNative and Bannerlator (maxjivi05). LSFG frame generation is from the work of Camille LaVey and the Eden emulator project, following lsfg-vk, ported to WinNative and DroidDeck by @maxjivi05; it needs your own copy of Lossless Scaling and ships none of its shaders. x86 AppImages, and any whose own runtime cannot unpack them, are unpacked with uruntime by VHSgunzo (MIT), shipped unmodified with its licence. See LICENSE. Steam and Proton belong to Valve Corporation; this project is not affiliated with Valve.