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-rw-r--r--share/man/man4/acpi.42
1 files changed, 2 insertions, 0 deletions
diff --git a/share/man/man4/acpi.4 b/share/man/man4/acpi.4
index 1e06d68..9292674 100644
--- a/share/man/man4/acpi.4
+++ b/share/man/man4/acpi.4
@@ -61,6 +61,8 @@ If the default settings are not optimal, the following sysctls can be
used to modify or monitor
.Nm
behavior.
+Note that some variables will be available only if given hardware supports
+them (such as hw.acpi.acline).
.Bl -tag -width indent
.It Va debug.acpi.enable_debug_objects
Enable dumping Debug objects without
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