diff options
Diffstat (limited to 'share/man/man4/man4.i386')
| -rw-r--r-- | share/man/man4/man4.i386/acpi_ibm.4 | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/share/man/man4/man4.i386/acpi_ibm.4 b/share/man/man4/man4.i386/acpi_ibm.4 index 4375e41..c89201e 100644 --- a/share/man/man4/man4.i386/acpi_ibm.4 +++ b/share/man/man4/man4.i386/acpi_ibm.4 @@ -281,8 +281,28 @@ Toggle Bluetooth chip activity. (read-only) Indicates whether the WLAN chip is active or not. .It Va dev.acpi_ibm.0.fan -(read-only) -Indicates whether the fan is on or off. +Indicates whether the fan is in automatic (1) or manual (0) mode. +Default is automatic mode. +This sysctl should be used with extreme precaution, since disabling automatic +fan control might overheat the ThinkPad and lead to permanent damage if the +.Va fan_level +is not set accordingly. +.It Va dev.acpi_ibm.0.fan_level +Indicates at what speed the fan should run when being in manual mode. +Values are ranging from 0 (off) to 7 (max). +The resulting speed differs from model to model. +On a T41p this is as follows: +.Pp +.Bl -tag -width indent-two -compact +.It Li 0 +off +.It Li 1, 2 +~3000 RPM +.It Li 3, 4, 5 +~3600 RPM +.It Li 6, 7 +~4300 RPM +.El .It Va dev.acpi_ibm.0.fan_speed (read-only) Fan speed in rounds per minute. |
