Switch headless display stack to Xorg dummy.

Replace Xvfb with Xorg dummy and mount /run/udev so Sunshine virtual input devices target the streamed X session instead of the host console.

Co-authored-by: Cursor <cursoragent@cursor.com>

Dockerfile

@@ -12,7 +12,8 @@ RUN if [ -n "$APT_PROXY" ]; then \
 # 1. Добавляем 32-битную архитектуру для Steam и базовые графические зависимости
 RUN dpkg --add-architecture i386 && \
     apt-get update && apt-get install -y \
-    xvfb fluxbox dbus-x11 xauth xfonts-base x11-xserver-utils \
+    xserver-xorg-core xserver-xorg-video-dummy xserver-xorg-input-libinput \
+    fluxbox dbus-x11 xauth xfonts-base x11-xserver-utils \
     software-properties-common wget curl ca-certificates locales pciutils \
     libcap2-bin libgomp1 mesa-utils \
     libxcb-cursor0 libxcb-xinerama0 libxcb-xfixes0 libxcb-shape0 libxcb-randr0 libxcb-xtest0 \
@@ -48,14 +49,48 @@ RUN apt-get update && \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 
-# 4. Скрипт очищает сессию, поднимает виртуальный экран, fluxbox и запускает Sunshine
+# 4. Конфиг Xorg dummy: нужен для корректной работы ввода Moonlight в контейнере
+RUN mkdir -p /etc/X11 \
+    && echo 'Section "ServerLayout"\n\
+Identifier "Layout0"\n\
+Screen 0 "Screen0"\n\
+EndSection\n\
+\n\
+Section "Device"\n\
+Identifier "Device0"\n\
+Driver "dummy"\n\
+VideoRam 256000\n\
+EndSection\n\
+\n\
+Section "Monitor"\n\
+Identifier "Monitor0"\n\
+HorizSync 28.0-80.0\n\
+VertRefresh 48.0-75.0\n\
+Modeline "1920x1080" 172.80 1920 2040 2248 2576 1080 1081 1084 1118\n\
+EndSection\n\
+\n\
+Section "Screen"\n\
+Identifier "Screen0"\n\
+Device "Device0"\n\
+Monitor "Monitor0"\n\
+DefaultDepth 24\n\
+SubSection "Display"\n\
+Depth 24\n\
+Modes "1920x1080"\n\
+EndSubSection\n\
+EndSection\n\
+' > /etc/X11/xorg-dummy.conf
+
+# 5. Поднимаем Xorg dummy, fluxbox и Sunshine
 RUN echo '#!/bin/bash\n\
+set -e\n\
 rm -f /tmp/.X99-lock /tmp/.X11-unix/X99\n\
 id steam >/dev/null 2>&1 || useradd -m -s /bin/bash steam\n\
 mkdir -p /home/steam/.local/share/Steam /tmp/xdg-steam\n\
 ln -sfn /home/steam/.local/share/Steam /home/steam/.steam\n\
 chown -R steam:steam /home/steam /tmp/xdg-steam\n\
-Xvfb :99 -ac -screen 0 1920x1080x24 &\n\
+modprobe uinput >/dev/null 2>&1 || true\n\
+Xorg :99 -config /etc/X11/xorg-dummy.conf -nolisten tcp -noreset +extension GLX +extension RANDR +extension RENDER &\n\
 export DISPLAY=:99\n\
 export HOME=/root\n\
 export LANG=en_US.UTF-8\n\