diff --git a/keymapper/dev/injector.py b/keymapper/dev/injector.py
index 264599ec..861f7e91 100644
--- a/keymapper/dev/injector.py
+++ b/keymapper/dev/injector.py
@@ -75,7 +75,7 @@ def is_numlock_on():
             return num_lock_status[1] == 'on'
 
         return False
-    except subprocess.CalledProcessError:
+    except (FileNotFoundError, subprocess.CalledProcessError):
         # tty
         return None
 
@@ -435,6 +435,11 @@ class Injector:
             if len(macros) == 0:
                 logger.debug('No macros configured')
 
+            logger.spam(
+                'Original capabilities for "%s": %s',
+                path, source.capabilities(verbose=True)
+            )
+
             # certain capabilities can have side effects apparently. with an
             # EV_ABS capability, EV_REL won't move the mouse pointer anymore.
             # so don't merge all InputDevices into one UInput device.
diff --git a/tests/test.py b/tests/test.py
index 3a798ab7..6a487844 100644
--- a/tests/test.py
+++ b/tests/test.py
@@ -306,7 +306,7 @@ class InputDevice:
             yield result
             await asyncio.sleep(0.01)
 
-    def capabilities(self, absinfo=True):
+    def capabilities(self, absinfo=True, verbose=False):
         result = copy.deepcopy(fixtures[self.path]['capabilities'])
 
         if absinfo and evdev.ecodes.EV_ABS in result: