Motherboard compatibility - AMD

[Fernando Gomes]

I've used the article https://wiki.ubuntu.com/DebuggingACPI to try to
debug the ACPI problem, and the results were the following:

acpi=off - Working, as I told in the previous email
acpi=ht - Also working
pci=noacpi - Also working
acpi=noirq - Also working
pnpacpi=off - This is the only one that keep the same problems (slow
mouse, etc.)
noapic - Working
nolapic - Working

So, only the pnpacpi=off has the previous problems. The only
conclusion I can get is that the problem is not related to the plug
and play code, but I can't figure from the previous results how to
narrow down the problem, since every other variant works.

It also seems that using nolapic I have more processing reported by
the jack control (always using the same applciations open and playing
the same drum track on hydrogen, I have a value between 2.2% and 2.5%
with all the ACPI options except with nolapic where the values are
between 2.6% and 3%

Fernando

On Sat, May 8, 2010 at 11:37 PM, Fernando Gomes <f.m.gomes at gmail.com> wrote:
> Hi all and thanks for the tips. The problem seems to be solved (at
> least until now) using the option acpi=off. I'm writing this message
> on the rt kernel on the same machine that locked up only a few moments
> after booting, now it is working for about one hour, running jack,
> ZynAddSubFx, Rosegarden, Hydrogen and Rackarrack. Once again thanks
> for your advice.
> I've tried to look for a newer bios version for this board but I'm
> already using the latest version. How this acpi=off option will impact
> on the system performance? I will make some more tests using
> alternative acpi configurations tomorrow and I'll let you know the
> results.
>
> Best regards
>
> Fernando
>
> On Sat, May 8, 2010 at 2:07 PM, Scott Lavender <scottalavender at gmail.com> wrote:
>>
>> On Sat, May 8, 2010 at 5:44 AM, Roy Damen <roydamen at gmail.com> wrote:
>>>
>>> Dear John,
>>>
>>> On my machine i had a similar problem with rt. After more than 1,5 year of
>>> searching, trying out and lots of help with explanation on the ubuntuforums
>>> i discovered that it was this BIOS setting that must be turned off: IOAPIC
>>> It seems that ubuntu can manage  this by itself(if i understood correctly) I
>>> bet this solves your problem too!
>>>
>>> 2010/5/7 jONE <producjohns at gmail.com>
>>>>
>>>> Hi Fernando I've got an AMD Athlon 64 X2 4000+ processor too and had
>>>> problems with the RT kernel since I first installed 8.04 onwards. I tried
>>>> pretty much everything until a few days ago, when I simply "loaded optimized
>>>> settings" on my BIOS and believe it or not, no mouse delay and no hanging at
>>>> all. My hammerfall soundcard's delay <10ms recording 16channels. I honestly
>>>> don't know what setting in the BIOS messed it up since "optimized settings"
>>>> or "default settings" options don't specify much and I've tweaked the thing
>>>> so many times I lost track of what the original setting was! Maybe give that
>>>> a try?
>>>> Good luck!
>>>>
>>>> John
>>
>> I remember several years ago there were some problems with peoples systems
>> acting sluggish or freezing with the -rt kernel during Hardy.  If I remember
>> correctly it had to do with acpi, although I cannot find any of those emails
>> on the mailing list.
>>
>> However, I did find a Ubuntu Studio review by Dave Phillips that also
>> mentions the acpi situation:
>> http://www.linuxjournal.com/content/judgement-day-studio-dave-tests-ubuntu-studio-904
>>
>> Also, this 64Studio forum posts discusses it a little more:
>> http://www.64studio.com/node/1111
>>
>> Hope this helps.
>>
>> ScottL
>>
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>>
>