Fixed issues with gamescope not properly launching.

ptlinux/gamescope_runtime.py

@@ -27,10 +27,11 @@ WAYLAND_BACKING_FIX_VERSION = (3, 16, 28)
 BUNDLED_GAMESCOPE_VERSION = (3, 16, 20)
 BUNDLED_GAMESCOPE_FILENAME = "gamescope-3.16.20-ubuntu26.04-amd64"
 BUNDLED_GAMESCOPE_SHA256 = (
-    "d4a082d8db0c467f65b429b6fb339b56b9a0d3e17e9c1957ede9ba1cb9a3ec90"
+    "3fc81536c22dcce2c593c11507a612c13221f5b2ce2e5326f7c63706ca965639"
 )
 BUNDLED_GAMESCOPE_OS_ID = "ubuntu"
 BUNDLED_GAMESCOPE_OS_VERSION = "26.04"
+KEEP_NESTED_WINDOWS_VISIBLE_ENV = "PTLINUX_GAMESCOPE_KEEP_WINDOWS_VISIBLE"
 HASH_READ_SIZE = 256 * 1024
 _GAMESCOPE_VERSION_PATTERN = re.compile(
     r"\bgamescope\s+version\s+(\d+)\.(\d+)\.(\d+)",
@@ -357,6 +358,11 @@ def run_gamescope(command: Sequence[str], width: int, height: int) -> int:
         # SDL otherwise requests compositor bypass, which can switch near
         # screen-filling sizes and visibly flicker while Gamescope is scaling.
         environment["SDL_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR"] = "0"
+    if using_bundled_gamescope:
+        # The game asks its X11 WM to iconify the first client while entering
+        # the login screen. Our scoped Gamescope patch keeps that nested surface
+        # visible without activating or raising the host window.
+        environment[KEEP_NESTED_WINDOWS_VISIBLE_ENV] = "1"
     try:
         process = subprocess.Popen(launch_command, env=environment)
     except OSError as exc:
@@ -374,7 +380,7 @@ def run_gamescope(command: Sequence[str], width: int, height: int) -> int:
         if using_bundled_gamescope:
             message += (
                 " Launcher-local lazy-output, live-resize, letterbox backing, "
-                "and decoration-input fixes are active."
+                "decoration-input, and login-window visibility fixes are active."
             )
         print(message, file=sys.stderr, flush=True)
     elif backend == "wayland":