Help please

Hello,
To simplify my question, I'm going to include an excerpt from a post
to our lug here. Would you possible have a work around for this problem? TIA

<snip>
Ok, gotta throw one out for some help.
Long story short is, I have a laptop that I just purchased for a client, has nvidia and runs perfect with Ubuntu Gutsy except for 1 little (kinda huge) problem.
The bios that ships with most laptops lately , COMPLETELY SUCK (I hate phoenix). There is absolutely NOTHING in the bios to help control acpi or apic. My problem is that I have NO SOUND unless I boot with the kernel boot option of "acpi=off", then all works perfect except I have no battery monitoring, which on a laptop is pretty huge, if this was a desktop, it would be no biggie (not sure if it would affect ups monitoring). I notice that I have ERR=1 from /proc/interrupts. I have tried all sorts of combinations of boot options, including "noapic nolapic pnpbios=off" and I forget the rest I've tried, nothing works except for turning off acpi completely and then no battery monitor. I've looked into apm but can't recompile the kernel because then all the other "restricted" packages won't work with the custom kernel and that option is basically a pain in the ass. I feel this is probably related to the ERR=1 from interrupts but I can't seem to clear this, it only gets worse with other boot options I've tried.
Does anyone know how to reroute irq's or make them behave better (yes I've tried pci=routeirq)?
Has anyone else had this problem and found a solution? Currently my work around is 2 grub boot stanza's, one is to have sound which runs "acpi=off" and the other is to have no sound and everything else works (battery monitor), without the "acpi=off" option. Any help please? TIA
<snip>

Make and model of laptop?
BIOS version?

dmesg output would probably also be useful.

-Carlos

E-Mail: [email protected]
Web: strangeworlds.co.uk
GPG Key ID: 0x23EE722D

Re-adding linux-acpi to CC.

This is not an ACPI problem, it's an ALSA problem.

http://ubuntuforums.org/showthread.php?t=545401

See the third entry ("Aspire 5720ZG, also: Aspire 7520G TV") which should cover the Aspire 7520 and what you need to do to get the sound working on *buntu.

-Carlos

E-Mail: [email protected]
Web: strangeworlds.co.uk
GPG Key ID: 0x23EE722D

Cyber Source ha scritto:

Hi,
sorry if I follow your post but I have a problem with ACPI and I think that the culprit is always Phoenix Bios as in your case (I have an HP dv2500 laptop with bios F.21)... I've read that Phoenix Bios has been planned to allow only Microsoft systems (in particular Vista) to read ACPI data and therefore manage CPU. Someone can confirm this?
I can't manage cpu frequency scaling which, by the way, is supported by my cpu (C2D T7500) and in fact inside Vista works pretty well.
This is the ACPI error I get when I modprobe acpi-cpufreq:

[ 1008.017253] ACPI Error (psargs-0355): [\_PR_.CPU0._PSS] Namespace lookup failure, AE_NOT_FOUND
[ 1008.017259] ACPI Error (psparse-0551): Method parse/execution failed [\_PR_.CPU1._PSS] (Node ffff81007cf59de0), AE_NOT_FOUND
[ 1008.017293] ACPI Exception (processor_perflib-0234): AE_NOT_FOUND, Evaluating _PSS [20070126]

I hope someone can clarify on this.

Please file a sighting here:

http://bugzilla.kernel.org/enter_bug.cgi?product=ACPI

please attach the output from acpidump.

please attach the dmesg from 2.6.23.stable or later.

thanks,
-Len

Len Brown ha scritto:

ok, found and done:
http://bugzilla.kernel.org/show_bug.cgi?id=9586

thanks

Please file a sighting here:

http://bugzilla.kernel.org/enter_bug.cgi?product=ACPI
Category: config-interrupts

Please note if this has always not worked, or if a previous version of Linux worked.

Please attach the dmesg and /proc/interrupt from the acpi=off boot; and the same for the boot with no boot parameters.

Please attach a single copy of the output from acpidump, and the output from lspci -vv.

thanks,
-Len