From: Peter Clifton <pcjc2@cam.ac.uk>
To: linux-acpi@vger.kernel.org
Subject: HP Compaq nc6320
Date: Wed, 11 Oct 2006 23:08:36 +0100 [thread overview]
Message-ID: <1160604516.5349.14.camel@pcjc2lap> (raw)
I decided to revert the HP bios back to F.06, and now - to my surprise,
on boot, I get an extra SSDT! (The CpuPm one).
[17179569.184000] ACPI: RSDP (v000
HP ) @ 0x000f7d70
[17179569.184000] ACPI: RSDT (v001 HP 30AA 0x28040620 HP
0x00000001) @ 0x3f7e5684
[17179569.184000] ACPI: FADT (v002 HP 30AA 0x00000002 HP
0x00000001) @ 0x3f7e5600
[17179569.184000] ACPI: MADT (v001 HP 30AA 0x00000001 HP
0x00000001) @ 0x3f7e56c0
[17179569.184000] ACPI: MCFG (v001 HP 30AA 0x00000001 HP
0x00000001) @ 0x3f7e5728
[17179569.184000] ACPI: TCPA (v002 HP 30AA 0x00000001 HP
0x00000001) @ 0x3f7e5764
[17179569.184000] ACPI: SSDT (v001 HP HPQSAT 0x00000001 MSFT
0x0100000e) @ 0x3f7f4af8
[17179569.184000] ACPI: SSDT (v001 HP CpuPm 0x00003000 INTL
0x20050624) @ 0x3f7f5327
[17179569.184000] ACPI: DSDT (v001 HP nc6340 0x00010000 MSFT
0x0100000e) @ 0x00000000
The CpuPm SSDT table contains _PDC and _OSC methods, and generally looks
useful.
Still, linux doesn't load either speedstep-centrino, or acpi-speedstep.
I'll poke some more, but it looks promising.
I wounder why the BIOS F.08 doesn't have the CpuPm SSDT? It appeared to
flash correctly when I first installed it. Perhaps even booting windows
(to downgrade to F.06) had some effect on the bios to bring back the
SSDT? Perhaps it is only in the F.06.
Does anyone have any contacts with HP who might shed any light on this?
Regards
Peter Clifton
next reply other threads:[~2006-10-11 22:08 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-11 22:08 Peter Clifton [this message]
2006-10-11 22:17 ` HP Compaq nc6320 Peter Clifton
2006-10-11 23:53 ` Peter Clifton
2006-10-12 0:08 ` Peter Clifton
2006-10-12 14:53 ` Rafael J. Wysocki
2006-10-12 16:38 ` Thomas Renninger
2006-10-12 16:39 ` Peter Clifton
2006-10-12 21:08 ` Rafael J. Wysocki
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