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-rw-r--r--src/src/prefixsetuprunner.cpp6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/src/prefixsetuprunner.cpp b/src/src/prefixsetuprunner.cpp
index f02f824..dba1742 100644
--- a/src/src/prefixsetuprunner.cpp
+++ b/src/src/prefixsetuprunner.cpp
@@ -841,8 +841,10 @@ bool PrefixSetupRunner::stepProtonInit()
env["STEAM_COMPAT_DATA_PATH"] = cleanCompat;
env["SteamAppId"] = QString::number(m_appId);
env["SteamGameId"] = QString::number(m_appId);
- env["DISPLAY"] = "";
- env["WAYLAND_DISPLAY"] = "";
+ // Keep DISPLAY/WAYLAND_DISPLAY from the host: Proton-GE protonfixes runs
+ // `xrandr` during wineboot -u to detect monitors, and xrandr exits 1 if
+ // it can't open a display, which cascades to a failed prefix init on
+ // newer Proton-GE builds. wineboot -u is unattended and doesn't pop UI.
env["WINEDLLOVERRIDES"] = "msdia80.dll=n;conhost.exe=d;cmd.exe=d";
// ntsync on kernel 7.0+ can deadlock wineboot -u during prefix init
// under Proton 11 (wineboot blocks in ntsync_char_ioctl forever). Force