From b8c12aac651d626c5120e6e8e18b42e7528caf43 Mon Sep 17 00:00:00 2001
From: nerdopolis <bluescreen_avenger@verizon.net>
Date: Fri, 8 Oct 2021 21:51:43 -0400
Subject: [PATCH] xfree86: On Linux, while only seat0 can have TTYs, don't
 assmume all seat0s have TTYs

---
 hw/xfree86/common/xf86Init.c                 | 18 +++++++++++++++++-
 hw/xfree86/common/xf86Priv.h                 |  2 ++
 hw/xfree86/os-support/linux/systemd-logind.c |  3 ++-
 3 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/hw/xfree86/common/xf86Init.c b/hw/xfree86/common/xf86Init.c
index 2a0cfc361..361781e0e 100644
--- a/hw/xfree86/common/xf86Init.c
+++ b/hw/xfree86/common/xf86Init.c
@@ -85,6 +85,11 @@
 #include <X11/extensions/dpmsconst.h>
 #include "dpmsproc.h"
 #endif
+
+#ifdef __linux__
+#include <linux/major.h>
+#include <sys/sysmacros.h>
+#endif
 #include <hotplug.h>
 
 void (*xf86OSPMClose) (void) = NULL;
@@ -201,6 +206,17 @@ xf86PrivsElevated(void)
     return PrivsElevated();
 }
 
+Bool
+xf86HasTTYs(void)
+{
+#ifdef __linux__
+    struct stat tty0devAttributes;
+    return (stat("/dev/tty0", &tty0devAttributes) == 0 && major(tty0devAttributes.st_rdev) == TTY_MAJOR);
+#else
+    return TRUE;
+#endif
+}
+
 static void
 xf86AutoConfigOutputDevices(void)
 {
@@ -425,7 +441,7 @@ InitOutput(ScreenInfo * pScreenInfo, int argc, char **argv)
                 want_hw_access = TRUE;
 
             /* Non-seat0 X servers should not open console */
-            if (!(flags & HW_SKIP_CONSOLE) && !ServerIsNotSeat0())
+            if (!(flags & HW_SKIP_CONSOLE) && !ServerIsNotSeat0() && xf86HasTTYs())
                 xorgHWOpenConsole = TRUE;
         }
 
diff --git a/hw/xfree86/common/xf86Priv.h b/hw/xfree86/common/xf86Priv.h
index dde458327..d5185d8df 100644
--- a/hw/xfree86/common/xf86Priv.h
+++ b/hw/xfree86/common/xf86Priv.h
@@ -158,6 +158,8 @@ extern _X_EXPORT Bool
 xf86CallDriverProbe(struct _DriverRec *drv, Bool detect_only);
 extern _X_EXPORT Bool
 xf86PrivsElevated(void);
+extern _X_EXPORT Bool
+xf86HasTTYs(void);
 
 #endif                          /* _NO_XF86_PROTOTYPES */
 
diff --git a/hw/xfree86/os-support/linux/systemd-logind.c b/hw/xfree86/os-support/linux/systemd-logind.c
index 93428ba73..9f916aa7b 100644
--- a/hw/xfree86/os-support/linux/systemd-logind.c
+++ b/hw/xfree86/os-support/linux/systemd-logind.c
@@ -38,6 +38,7 @@
 #include "xf86.h"
 #include "xf86platformBus.h"
 #include "xf86Xinput.h"
+#include "xf86Priv.h"
 #include "globals.h"
 
 #include "systemd-logind.h"
@@ -583,7 +584,7 @@ static struct dbus_core_hook core_hook = {
 int
 systemd_logind_init(void)
 {
-    if (!ServerIsNotSeat0() && linux_parse_vt_settings(TRUE) && !linux_get_keeptty()) {
+    if (!ServerIsNotSeat0() && xf86HasTTYs() && linux_parse_vt_settings(TRUE) && !linux_get_keeptty()) {
         LogMessage(X_INFO,
             "systemd-logind: logind integration requires -keeptty and "
             "-keeptty was not provided, disabling logind integration\n");