| acpi.4 (158213) | acpi.4 (159477) |
|---|---|
| 1.\" 2.\" Copyright (c) 2001 Michael Smith 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" | 1.\" 2.\" Copyright (c) 2001 Michael Smith 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" |
| 26.\" $FreeBSD: head/share/man/man4/acpi.4 158213 2006-05-01 11:56:18Z brueffer $ | 26.\" $FreeBSD: head/share/man/man4/acpi.4 159477 2006-06-10 08:06:16Z njl $ |
| 27.\" 28.Dd May 1, 2006 29.Dt ACPI 4 30.Os 31.Sh NAME 32.Nm acpi 33.Nd Advanced Configuration and Power Management support 34.Sh SYNOPSIS --- 53 unchanged lines hidden (view full) --- 88Deeper sleeps provide more power savings but increased transition 89latency when an interrupt occurs. 90.El 91.Sh LOADER TUNABLES 92Tunables can be set at the 93.Xr loader 8 94prompt before booting the kernel or stored in 95.Pa /boot/loader.conf . | 27.\" 28.Dd May 1, 2006 29.Dt ACPI 4 30.Os 31.Sh NAME 32.Nm acpi 33.Nd Advanced Configuration and Power Management support 34.Sh SYNOPSIS --- 53 unchanged lines hidden (view full) --- 88Deeper sleeps provide more power savings but increased transition 89latency when an interrupt occurs. 90.El 91.Sh LOADER TUNABLES 92Tunables can be set at the 93.Xr loader 8 94prompt before booting the kernel or stored in 95.Pa /boot/loader.conf . |
| 96Many of these tunables also have a matching 97.Xr sysctl 8 98entry for access after boot. |
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| 96.Bl -tag -width indent 97.It Va acpi_dsdt_load 98Enables loading of a custom ACPI DSDT. 99.It Va acpi_dsdt_name 100Name of the DSDT table to load, if loading is enabled. 101.It Va debug.acpi.disabled 102Selectively disables portions of ACPI for debugging purposes. 103.It Va debug.acpi.max_threads 104Specify the number of task threads that are started on boot. 105Limiting this to 1 may help work around various BIOSes that cannot 106handle parallel requests. 107The default value is 3. 108.It Va debug.acpi.quirks 109Override any automatic quirks completely. | 99.Bl -tag -width indent 100.It Va acpi_dsdt_load 101Enables loading of a custom ACPI DSDT. 102.It Va acpi_dsdt_name 103Name of the DSDT table to load, if loading is enabled. 104.It Va debug.acpi.disabled 105Selectively disables portions of ACPI for debugging purposes. 106.It Va debug.acpi.max_threads 107Specify the number of task threads that are started on boot. 108Limiting this to 1 may help work around various BIOSes that cannot 109handle parallel requests. 110The default value is 3. 111.It Va debug.acpi.quirks 112Override any automatic quirks completely. |
| 113.It Va debug.acpi.resume_beep 114Beep the PC speaker on resume. 115This can help diagnose suspend/resume problems. 116Default is 0 (disabled). |
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| 110.It Va hint.acpi.0.disabled 111Set this to 1 to disable all of ACPI. 112If ACPI has been disabled on your system due to a blacklist entry for your 113BIOS, you can set this to 0 to re-enable ACPI for testing. 114.It Va hw.acpi.ec.poll_timeout 115Delay in milliseconds to wait for the EC to respond. 116Try increasing this number if you get the error 117.Qq Li AE_NO_HARDWARE_RESPONSE . 118.It Va hw.acpi.host_mem_start 119Override the assumed memory starting address for PCI host bridges. 120.It Va hw.acpi.reset_video 121Enables calling the VESA reset BIOS vector on the resume path. | 117.It Va hint.acpi.0.disabled 118Set this to 1 to disable all of ACPI. 119If ACPI has been disabled on your system due to a blacklist entry for your 120BIOS, you can set this to 0 to re-enable ACPI for testing. 121.It Va hw.acpi.ec.poll_timeout 122Delay in milliseconds to wait for the EC to respond. 123Try increasing this number if you get the error 124.Qq Li AE_NO_HARDWARE_RESPONSE . 125.It Va hw.acpi.host_mem_start 126Override the assumed memory starting address for PCI host bridges. 127.It Va hw.acpi.reset_video 128Enables calling the VESA reset BIOS vector on the resume path. |
| 122Some graphic chips have problems such as LCD white-out after resume. 123Try setting this to 0 if this causes problems for you. | 129This can fix some graphics cards that have problems such as LCD white-out 130after resume. 131Default is 0 (disabled). |
| 124.It Va hw.acpi.serialize_methods 125Allow override of whether methods execute in parallel or not. 126Enable this for serial behavior, which fixes 127.Qq Li AE_ALREADY_EXISTS 128errors for 129AML that really cannot handle parallel method execution. 130It is off by default since this breaks recursive methods and some IBMs use 131such code. --- 340 unchanged lines hidden --- | 132.It Va hw.acpi.serialize_methods 133Allow override of whether methods execute in parallel or not. 134Enable this for serial behavior, which fixes 135.Qq Li AE_ALREADY_EXISTS 136errors for 137AML that really cannot handle parallel method execution. 138It is off by default since this breaks recursive methods and some IBMs use 139such code. --- 340 unchanged lines hidden --- |