From be761885e664732049b99e444c71fa5859f228d4 Mon Sep 17 00:00:00 2001
From: bob8677 <68208828+bob8677@users.noreply.github.com>
Date: Thu, 22 Oct 2020 14:35:17 -0500
Subject: [PATCH] Update pam.py

---
 src/pam.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/pam.py b/src/pam.py
index 08cccef..85dd88c 100644
--- a/src/pam.py
+++ b/src/pam.py
@@ -31,6 +31,12 @@ def doAuth(pamh):
 		if any("closed" in open(f).read() for f in glob.glob("/proc/acpi/button/lid/*/state")):
 			return pamh.PAM_AUTHINFO_UNAVAIL
 
+        # Abort if the video device does not exist
+        if not os.path.exists(config.get("video", "device_path")):
+                if config.getboolean("video", "warn_no_device"):
+                        print("Video device " + config.get("video", "device_path") + " not found")
+                return pamh.PAM_AUTHINFO_UNAVAIL
+
 	# Set up syslog
 	syslog.openlog("[HOWDY]", 0, syslog.LOG_AUTH)