diff --git a/docs/troubleshooting/intel-igfx-troubleshooting.md b/docs/troubleshooting/intel-igfx-troubleshooting.md
index 484a1cf..1817b17 100644
--- a/docs/troubleshooting/intel-igfx-troubleshooting.md
+++ b/docs/troubleshooting/intel-igfx-troubleshooting.md
@@ -65,7 +65,8 @@ Workarounds:
     A logout/login is then required.
 
     Intel's PSR (Panel Self Refresh) may also cause tearing issues; it can be
-    disabled globally in GRUB2/EFI with the `i915.enable_psr=0` boot option.
+    disabled globally in GRUB2/EFI with the `i915.enable_psr=0` boot option. If
+    this does fix tearing, a bad panel firmware was likely the cause.
 
 ## Finding out which of `intel` or `fbdev` driver is in use: