acertimeline team mailing list archive

[Sean Russell <seanerussell@xxxxxxxxx>]

AHCI is _not_ ACPI.  ACPI is an interface (API) to power management and
configuration of subsystems (Advanced Configuration and Power Interface,
literally).  AHCI (Advanced Host Controller Interface) is an API for SATA.
The first provides a programmer interface to a wide variety of subsystem
configurations; the second provides the OS with a way of managing disks.
They're unrelated; it is just coincidence(1) that disabling either solves a
problem with the Timeline's hard drives under Linux.

--- SER

(1) Actually, it is possible that they're both triggering the same issue, or
that there's some interaction between AHCI and ACPI that cause the
problem... I don't know.  The main point, here, is that they're completely
different interfaces, and disabling one has a different set of
partially-overlapping effects than disabling the other.

On Mon, Jun 29, 2009 at 8:21 AM, <boris.kairat@xxxxxxxxxxxxxxxxx> wrote:

> @SER: Thx, but that does not effect the behavior at all.
>
> Where is the difference between setting the bios to IDE (instead of AHCI)
> and the kernel boot option "libata.noacpi=1"?
>
> Maybe what I really want is something like "libata.noahci=1"!?
>
> Anyway: Will this be fixed in future releases or is it an acer bug?
>
> Greetings,
> BKA
>
>
> Zitat von Sean Russell <seanerussell@xxxxxxxxx>:
>
>  Please try disabling AHCI in the BIOS instead of ACPI in the kernel boot
>> params, and see if that makes any difference.
>>
>> --- SER
>>
>> On Jun 29, 2009 6:46 AM, <boris.kairat@xxxxxxxxxxxxxxxxx> wrote:
>>
>>
>> Hi @all!
>> In the meantime I installed Ubuntu 9.04 64BIT (2.6.28-11) on my 3810T
>> (Intel
>> Core2 Solo; 4GB) and boot with option: libata.noacpi=1.
>> Now I have the following problems:
>>
>> 1. If you dimm the display to darkest (or nearly darkest) setting it
>> starts
>> to flicker.
>> 2. On battery the fan starts every 30 seconds - also if the cpu und the
>> hdd
>> have nothing to do.
>> 3. System shuts down instead of resuming.
>> 4. The battery runs the system about 4 hours - not 8.
>>
>> Any further help would be appreciated...
>> Greetings from Germany!
>>
>>
>>
>>
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>
>
>
>
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