diff --git a/docs/DellLatitude7490.txt b/docs/DellLatitude7490.txt
index eb05803..e9ce1fd 100644
--- a/docs/DellLatitude7490.txt
+++ b/docs/DellLatitude7490.txt
@@ -24,6 +24,7 @@ have been:
   - Using Fedora instead of Debian: FAILED
   - Adding i915.modeset=0 to the boot line: TESTING
   - Adding i915.enable_dc=0 to the boot line: TESTING
+  - Adding acpi=off to the boot line: TESTING
   - Adding MUTTER_DEBUG_ENABLE_ATOMIC_KMS=0 to /etc/environment: TESTING
   - Adding MUTTER_DEBUG_FORCE_KMS_MODE=simple to /etc/environment: TESTING