HOWTO: Fix Common ACPI Problems (DSDT, ECDT, etc.)

maxithron · n00b Joined: 11 Apr 2005 Posts: 4

Ok, i simply re-made all, following line-per-line the instruction and now all works fine

Mason · n00b Joined: 03 Apr 2003 Posts: 7

laptop vs human 1-0 :oops:

don't buy a medion 95150 if you plan a linux installation. :twisted:

iacopo_i · n00b Joined: 09 Jun 2005 Posts: 1

I resolve all the problem:

visit htt://www.whoopy.it/linux to find a guide step by step

Bye
Iacopo_I
_________________
############################
Ing. Iacopo_I
http://www.whoopy.it

Certi uomini camminano molto ma non arrivano mai da nessuna parte...
############################

ihtruelsen · Posted: Fri Jun 24, 2005 6:03 am Post subject:

I think I am probably an idiot, but I followed the instructions at the beginning of this thread and everything is fine until I try to get the initrd support to work. I have patched the kernel, with no errors and got the option to load dsdt from initrd and have enabled initrd support into the kernel. However, no matter what I do, I can't get the dsdt to load from initrd.

Here is my grub.conf:

ihtruelsen · Posted: Fri Jun 24, 2005 6:19 am Post subject:

Okay, my bad. Apparently, the initrd line has to be on its own line in grub.conf.

Now, my battery state and ac adapter state are working, but the cpu frequency module can no longer be loaded.

eleven · n00b Joined: 23 Jul 2005 Posts: 5

Well, i signed up and im posting this as a last resort. I have been googling and working on this for almost a month now.. I have finally corrected all 19 errors in my DSDT file, and have managed to figure everything out until now. I have run into 4 warnings in the smbus-cm.asl files that come with the sbs-cm-20050328 patch set from sourceforge. I am running gentoo (obviously) kernel 2.6.12-r6 (although i get the same issues with the 2.6.11-r* kernels). Its all running on an Acer Travelmate 3200 which uses the SMBus that has tourchered many of us.. The DSDT is being recognized at boot in initrd (viewed in dmesg) but it still is disfunctional due to these errors...

THE ERRORS:

# iasl dsdt.dsl

Intel ACPI Component Architecture
ASL Optimizing Compiler / AML Disassembler version 20050309 [Jul 23 2005]
Copyright (C) 2000 - 2005 Intel Corporation
Supports ACPI Specification Revision 3.0

smbus-cm.asl 87: Method (_SBI, 0, NotSerialized)
Warning 2033 - Unknown reserved name ^ (_SBI)

smbus-cm.asl 147: Method (_SBR, 3, NotSerialized)
Warning 2033 - Unknown reserved name ^ (_SBR)

smbus-cm.asl 237: Method (_SBW, 5, NotSerialized)
Warning 2033 - Unknown reserved name ^ (_SBW)

smbus-cm.asl 314: Method (_SBA, 0, NotSerialized)
Warning 2033 - Unknown reserved name ^ (_SBA)

ASL Input: dsdt.dsl - 5200 lines, 231138 bytes, 2869 keywords
AML Output: DSDT.aml - 23621 bytes 684 named objects 2185 executable opcodes

Compilation complete. 0 Errors, 4 Warnings, 0 Remarks, 789 Optimizations

I am at a loss on how to go about fixing these issues, i have googled every search result for every combination of keywords i can think of. I have annoyed anyone who has ever seen my nick on IRC that i thought might have a clue. So, in last hopes of actually being able to see how much battery power i left im going public.. help..

Im known as elevenabroad on yahoo messenger, and i can be found as eleven or nevele on EFnet. Thanks a bunch.

swebb99 · n00b Joined: 30 Jul 2005 Posts: 2

Hi I've followed all the instructions for ACPI and SBS, patched the kernel for initrd, created a dsdt and so and and I still have a few issues.

1) I still get some warnings when compiling the dsdt, as it happens the same ones as the previous message on here

2) It takes ages to boot when ACPI is being used. I don't see any errors in dmesg and when the system is finally up and running it detects the battery and show me the charge and when the power is connected. I seems to halt for about 2 minutes after the initial detection of ACPI on the boot text then after this takes about 200-300% longer to boot from there on.

3) KLaptop when run says that the acpi checksum doesn't line up !!!

4) Any idea's how I configure scaling/throttling on the CPU so that the fan doesn't come on 50% of the time ?

Thanks for any help

Steve

eleven · n00b Joined: 23 Jul 2005 Posts: 5

I am still working on this issue.. Ive posted a few emails out to folks whom might know more than me. As soon as i resolve any issues with these errors, ill post the fixes and my DSDT to sourceforge. It seems that these errors are still not allowing my battery to be recognized.. So.. If anyone can lend a hint, im all ears..

thanks..

swebb99 · n00b Joined: 30 Jul 2005 Posts: 2

Right I eventually got the battery to work using initrd however the machine took ages to boot so instead I rebuilt the kernel to include the dsdt.hex and now the battery detection works great. My outstanding problem is the speedstep on my Centrino(Dohan). dmesg shows the cpu supports speedstep, ive edited cpuspeed.conf for speedstep for the centrino and as far as I can tell i have built to kernel with all the right opions but when i add the cpu scalling monitor applet to gnome it says scalling is not supported. Also if I try and look in /sys/devices/system/cpu/cpu0/ the directory is empty

Has anyone any idea's at all ?

Thanks

Steve

rhill · Posted: Mon Aug 01, 2005 11:10 pm Post subject:

the FF power button patch is no longer needed as of kernel 2.6.13-rc3

http://bugzilla.kernel.org/show_bug.cgi?id=1920
_________________
by design, by neglect
for a fact or just for effect

eleven · n00b Joined: 23 Jul 2005 Posts: 5

Well, finally got acpi and cpu clock speed to work, however, when my battery is fully charged linux reports that i have 2 hours and 10 minutes of life, while windows reports 5 hours. I can see the battery monitor and the cpu clockspeed monitor and dmesg detects the new dsdt, but, it eats power quick... Any ideas?

Im running jackass! gentoo, optimized for pentium-m, kernel 2.6.12-r9. Used the sbs patches to get acpi working, everything is updated to the newest version (which may be the problem..) Any idea why windows reports (and gives) 5 hours while gentoo only can kick out a little over 2?

Thanks a bunch for the help from this forum...

ihtruelsen · Posted: Thu Sep 01, 2005 4:51 pm Post subject:

How did you get the speed step and the battery detection working simultaneously? I can only get one or the other.

retupmoca · n00b Joined: 15 Jul 2005 Posts: 11

I have a Dell I5150, and AFAICT, everything in /proc/acpi is correct. However, I am not getting any ACPI interrupts:

eleven · n00b Joined: 23 Jul 2005 Posts: 5

i got cpu scaling and acpi to work through the acer-tm patches that i found through a link on a forum.. (acer-tm32xx-sbs-cm.diff) after rebuilding the kernel and putting everything in place it works.. however, it doesnt work very well.. i can see the battery and everything is recognized, but, i miss ticks like crazy (which i notice in keystrokes being skipped..) So, now i can see my battery and scale the cpu, but, typing is a pain since it misses alot of keys... i tried the acpi-ec-nospinlock.diff patch that is supposed to fix this problem, and it did, but it made a lot of new problems.. problems with bash, not being able to read and write to files when i own them, everything seems to work ok as root, but as a user your locked out of half of you own files... so, not sure what is better.. no acpi, or a broken implementation of it... any ideas on how to stop missing ticks? thoughts?

joker · l33t Joined: 03 May 2003 Posts: 681 Location: www

hi guys, I need your help!
I have Acer Aspire 5024 laptop and I can't monitor my battery

here's the info:

kernel gentoo-sources-2.6.12-r10

I tried to fix my dsdt.dsl file but I still have 1 error:

eleven · n00b Joined: 23 Jul 2005 Posts: 5

i have an acer travelmate 3200 and had the same issues.. the only way i was able to get everything working (cpu scaling, battery display, fan, etc) and not have issues with lost events (noticed through missing keystrokes) was to use a fixed dsdt on kernel 2.6.11.5 using the initrd patch and the nospinlock-ec patch. now, everything works great. But, couldnt get anything saine on 2.6.12 and up...

if anyone has a newer idea, maybe the experimental ramfs way, gimmie your thoughts!

Chewi · Posted: Wed Sep 28, 2005 6:37 pm Post subject:

Many thanks to jetblack! I wasn't even aware this was possible. I'm hoping this will cure (or at least help to cure) the really irritating random crashes I've been experiencing since April. It seems to have had some effect because enabling local APIC used to crash my machine very quickly but now it seems to work fine. Time will tell if it's fixed everything. If anyone has a Sony Vaio PCG-K195HP then head over here to get the custom DSDT I made.

The HOWTO desperately needs updating though. There is an ebuild for the Intel compiler now (emerge iasl) so you don't need to have to manually install it anymore. It is also no longer necessary to patch the kernel for DSDT override. The missing ECDT patch badly needs updating as well - or rather it did because... ARRGH!! :evil:

Chewi · Posted: Thu Sep 29, 2005 1:09 am Post subject:

Errm sorry about that. I had gone to the huge trouble of updating the patch myself (wasn't easy) and it worked nicely. So what's the problem? The missing ECDT problem has already since been tackled in another part of the kernel! You just put acpi_fake_ecdt on the kernel command line! All that effort for nothing!

Oh well.

As if that weren't enough, my machine crashed again and it turns out it wasn't local APIC causing the frequent crashing but irqpoll. Ho hum.

joker · l33t Joined: 03 May 2003 Posts: 681 Location: www

ok thanks to my friend Bartek I solved my problem with Acer Aspire 5024.
I put ec_burst=1 as a kernel parameter and now battery status works and ACPI don't show errors

gut luck!
_________________
http://amarok.org.pl | http://koffice.org.pl | http://kde.org.pl

Hokage-dono · n00b Joined: 22 Oct 2005 Posts: 4

hello !

I followed this tutorial and I have un a strange problem (for me :p) : during the boot I don't have any message like "Looking for dsdt in initrd..."
So It doesn't load the fixed dsdt ...

Here is my grub file :

pfourtz · n00b Joined: 22 Oct 2005 Posts: 1

First of all big thx for this how-to

Now I have a little problem: I have an acer travelmate 8100, so I fixed my dsdt as explained in the article and now I use it with the initrd override method but I can't read the battery status. I also tried the static override method, without any success.However I have the file /proc/acpi/battery/BAT1 but its content is :

Hokage-dono · n00b Joined: 22 Oct 2005 Posts: 4

hello

I tried to compile my dsdt.dsl but a got 3 error

Hokage-dono · n00b Joined: 22 Oct 2005 Posts: 4

yeah !!!! it works !!!!!!

But I have still a problem with the fan of my acer TM 4001wlmi : the fan is turned on every X minutes. This not depends on the cpu load

anyone can tell me how to fix thi problem ??

Hokage-dono · n00b Joined: 22 Oct 2005 Posts: 4

It seems to be solved with "powernowd" (i had the problem with cpudyn...).

But I observe a strange problem with the stepping frequecies of my pentium M dothan 1.5 ghz : for example, the max speed frequencies must be 1.5 ghz but here it's 1.6 ghz !! how is it possible ?? I don't know if the other stepping frequencies are good (does anyone have the right frequencies to compare ?).

djpharoah · Posted: Mon Nov 21, 2005 1:54 am Post subject:

how upto date is this HOW TO??

im asking as ACPI doesnt seem to work for my IBM A31 Laptop.
anyone seem to know of any other HOW TOs for ACPI