diff --git a/app/src/main/java/com/droiddeck/launcher/audio/PulseAudioComponent.java b/app/src/main/java/com/droiddeck/launcher/audio/PulseAudioComponent.java
index 754080b27..a66c491a2 100644
--- a/app/src/main/java/com/droiddeck/launcher/audio/PulseAudioComponent.java
+++ b/app/src/main/java/com/droiddeck/launcher/audio/PulseAudioComponent.java
@@ -138,16 +138,6 @@ public class PulseAudioComponent extends SessionPart {
         // AAudio sink in its place.
         config.add(".nofail");
         config.add("load-module module-directaudio-native-sink sink_name=DirectAudio performance_mode=1 adaptive=1 decay=0 limiter=1 watchdog=1 volume=1.0");
-        if (!com.droiddeck.launcher.core.DeviceSupport.INSTANCE.adreno()) {
-            // Not an Adreno: the daemon makes its own fallback, without waiting for pactl. A Galaxy
-            // S24 FE's AAudio refuses DirectAudio's low-latency stream (AAUDIO_ERROR_DISCONNECTED),
-            // so the plain AAudio sink, without low latency, is loaded as a default underneath it.
-            // (Loading DirectAudio a second time in the same daemon after its failed first load
-            // hung the daemon's start-up on that phone, so it is not retried here.) The last
-            // set-default-sink that names a sink which exists wins.
-            config.add("load-module module-aaudio-sink sink_name=AAudioSink performance_mode=0 adaptive=1 volume=1.0");
-            config.add("set-default-sink AAudioSink");
-        }
         config.add("set-default-sink DirectAudio");
         config.add(".fail");
         if (micFifoPath != null && !micFifoPath.isEmpty()) {
@@ -193,15 +183,24 @@ public class PulseAudioComponent extends SessionPart {
      */
     private void ensureClientSink(java.io.PrintWriter out) {
         try {
-            long deadline = System.currentTimeMillis() + 15000L;
+            // Nothing that may block (a sink whose AAudio open hangs: a Galaxy S24 FE (US) hung the
+            // daemon's start-up loading one from default.pa) is loaded by the daemon itself; the
+            // fallbacks are loaded here, after it is up, each pactl call bounded by its timeout.
+            long started = System.currentTimeMillis();
+            long deadline = started + 30000L;
             String sinks = null;
+            boolean socketSeen = false;
             while (System.currentTimeMillis() < deadline && pid > 1) {
-                if (socket().exists() && (sinks = pactl("list", "short", "sinks")) != null) break;
+                socketSeen |= socket().exists();
+                if (socketSeen && (sinks = pactl("list", "short", "sinks")) != null) break;
                 try { Thread.sleep(250L); } catch (InterruptedException e) { Thread.currentThread().interrupt(); return; }
             }
+            note(out, "client sink: daemon " + (sinks != null ? "answered" : "did not answer") + " after "
+                    + (System.currentTimeMillis() - started) + " ms (socket " + (socketSeen ? "present" : "never appeared") + ", pactl "
+                    + (new File(workingDir, "pactl").isFile() ? "present" : "MISSING") + ", daemon pid " + pid + ")");
             String line;
             if (sinks == null) {
-                line = "== client sink: the daemon did not answer in 15 s; no fallback attempted";
+                line = "== client sink: the daemon did not answer in 30 s; no fallback attempted";
             } else if (sinks.contains("\tDirectAudio\t") || sinks.startsWith("DirectAudio\t") || sinks.contains("\tDirectAudio\n") || sinks.matches("(?s).*\\bDirectAudio\\b.*")) {
                 line = "== client sink: DirectAudio (module-directaudio-native-sink)";
             } else {
@@ -215,7 +214,8 @@ public class PulseAudioComponent extends SessionPart {
                             "adaptive=1", "decay=0", "limiter=1", "watchdog=1", "volume=1.0") != null
                             && pactl("set-default-sink", "DirectAudio") != null) {
                         loadedAs = "DirectAudio on attempt " + attempt;
-                    } else if (pactl("load-module", "module-aaudio-sink", "sink_name=AAudioSink", "performance_mode=1", "adaptive=1", "volume=1.0") != null
+                    } else if (pactl("load-module", "module-aaudio-sink", "sink_name=AAudioSink",
+                            "performance_mode=" + (attempt == 1 ? "1" : "0"), "adaptive=1", "volume=1.0") != null
                             && pactl("set-default-sink", "AAudioSink") != null) {
                         loadedAs = "the plain AAudio sink (AAudioSink) on attempt " + attempt;
                     }
@@ -231,6 +231,13 @@ public class PulseAudioComponent extends SessionPart {
         }
     }
 
+    /** A timestamped line in the session's audio log. */
+    private void note(java.io.PrintWriter out, String what) {
+        String line = "== " + new java.text.SimpleDateFormat("HH:mm:ss.SSS", java.util.Locale.US).format(new java.util.Date()) + " " + what;
+        Log.i(TAG, line);
+        if (out != null) synchronized (out) { out.println(line); out.flush(); }
+    }
+
     /** Runs pactl against this daemon; its stdout, or null when it failed or timed out. */
     private String pactl(String... args) {
         File pactl = new File(workingDir, "pactl");
diff --git a/app/src/main/java/com/droiddeck/launcher/session/SessionService.kt b/app/src/main/java/com/droiddeck/launcher/session/SessionService.kt
index 9fbbf64a1..efa56ce65 100644
--- a/app/src/main/java/com/droiddeck/launcher/session/SessionService.kt
+++ b/app/src/main/java/com/droiddeck/launcher/session/SessionService.kt
@@ -685,6 +685,10 @@ class SessionService : Service() {
             }
         }
         if (!bridge && com.droiddeck.launcher.core.DeviceSupport.openDriverActive(this)) {
+            // CEF's accelerated shared-texture output showed stale, half-written tiles on RADV
+            // (Xclipse), as #570 found on PowerVR: web compositing in software, GPU raster kept.
+            guest.add("BL_STEAM_SOFT_COMPOSITING=1")
+            Log.i(TAG, "steam: software web compositing for the open driver pair (GPU raster kept)")
             LinuxRuntime.gpuStandIn(this)?.takeIf { it == LinuxRuntime.MALI_DEVICE }?.let { guest.add("BL_DRM_STANDIN=$it") }
         }
         // Turnip's own debug switches, for the runtime's driver and everything on it. The file in
diff --git a/tools/linuxfs/overlay/usr/local/bin/droiddeck-session b/tools/linuxfs/overlay/usr/local/bin/droiddeck-session
index f7d5ad96d..ad349d23b 100755
--- a/tools/linuxfs/overlay/usr/local/bin/droiddeck-session
+++ b/tools/linuxfs/overlay/usr/local/bin/droiddeck-session
@@ -885,6 +885,11 @@ BUSCONF
       # and the selected game driver still use the system GPU.
       bl_steam_presentation=(-cef-disable-gpu-compositing)
       echo "== steam: system PowerVR uses OpenGL/DRI3 through Zink with software CEF compositing"
+    elif [ "${BL_STEAM_SOFT_COMPOSITING:-}" = 1 ]; then
+      # An open driver pair on a GPU that is not an Adreno (RADV on Xclipse, PanVK on Mali): CEF's
+      # accelerated shared-texture output showed stale tiles there; raster stays on the GPU.
+      bl_steam_presentation=(-cef-disable-gpu-compositing)
+      echo "== steam: open driver pair - software CEF compositing, GPU raster"
     fi
     # The client's CEF flags for this presentation; the UI choice below may replace them.
     _bl_cef=(-cef-force-gpu "${bl_steam_presentation[@]}" -cef-use-gl=angle "-cef-use-angle=$bl_steam_angle")