From b5c4fbb42bdff6c02983126e4fd1891486996ea5 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sun, 22 Oct 2017 17:11:58 +0530
Subject: [PATCH] ...

---
 kitty/utils.py | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/kitty/utils.py b/kitty/utils.py
index f4fd5bd94..314c1b4bd 100644
--- a/kitty/utils.py
+++ b/kitty/utils.py
@@ -86,7 +86,7 @@ def cdef(name, restype, *argtypes):
 
 def parse_xrdb(raw):
     q = 'Xft.dpi:\t'
-    for line in raw.decode('utf-8').splitlines():
+    for line in raw.decode('utf-8', 'replace').splitlines():
         if line.startswith(q):
             return float(line[len(q):])
 
@@ -94,8 +94,12 @@ def parse_xrdb(raw):
 def x11_dpi():
     XResourceManagerString = load_libx11()
     display = x11_display()
-    raw = XResourceManagerString(display)
-    return parse_xrdb(raw)
+    if display:
+        try:
+            raw = XResourceManagerString(display)
+            return parse_xrdb(raw)
+        except Exception:
+            pass
 
 
 def get_logical_dpi():