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dr-server: wrap wine64 in xvfb-run for headless Unity

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Unity's Win64 build still creates a 1x1 hidden window via Win32 even
under -batchmode -nographics. Wine needs an X display to honor that;
without one, startup fails with "Failed to create batch mode window:
Success." after Mono initializes and PhysX comes up. xvfb-run -a gives
it a virtual display with no real X server cost.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
ediblerope 2026-05-07 09:47:55 +01:00
parent 8b83cf9bfb
commit 91670f0d28
1 changed files with 5 additions and 2 deletions
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7
services/dr-server.nix
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@ -40,7 +40,6 @@ in
WINEARCH = "win64";
WINEDEBUG = "-all";
HOME = dataDir;
DISPLAY = "";
};
preStart = ''
@ -57,7 +56,11 @@ in
User = "dr-server";
Group = "dr-server";
WorkingDirectory = buildDir;
ExecStart = "${wine}/bin/wine64 DR_Server.exe -batchmode -nographics -logFile ${logDir}/server.log";
# Unity's Win64 build still tries to create a 1x1 hidden window
# via Win32 even with -batchmode -nographics, and Wine needs a
# real X display for that — fails with "Failed to create batch
# mode window: Success." otherwise. xvfb-run gives it one.
ExecStart = "${pkgs.xvfb-run}/bin/xvfb-run -a ${wine}/bin/wine64 DR_Server.exe -batchmode -nographics -logFile ${logDir}/server.log";
Restart = "on-failure";
RestartSec = "10s";
};