ACPI woes

adaptor · 02-24-2006, 01:33 PM

I recently installed Slackware 10.2 on my Thinkpad T42. The default bareacpi.i kernel (2.4.31) had acpi working fine. I built a 2.6.15.4 kernel with, among other things, acpi enabled, including the Thinkpad specific item. I have been unsuccessful to get acpi working with this new kernel, though, no matter what I do. This is what I see in dmesg:

Code:

root@flatline:/usr/src/linux# dmesg | grep -i acpi
ACPI: PCI Interrupt 0000:01:00.0[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11
ACPI: AC Adapter [AC] (on-line)
ACPI: Battery Slot [BAT0] (battery present)
ACPI: Power Button (FF) [PWRF]
ACPI: Lid Switch [LID]
ACPI: Sleep Button (CM) [SLPB]
ACPI: Video Device [VID] (multi-head: yes  rom: no  post: no)
ACPI: CPU0 (power states: C1[C1] C2[C2] C3[C3])
ACPI: Processor [CPU] (supports 8 throttling states)
ACPI: Thermal Zone [THM0] (29 C)
ibm_acpi: IBM ThinkPad ACPI Extras v0.12a
ibm_acpi: <url omitted>
ibm_acpi: dock device not present
ACPI: PCI Interrupt 0000:01:00.0[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI Interrupt 0000:00:1f.6[B] -> Link [LNKB] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI interrupt for device 0000:00:1f.6 disabled
ACPI: PCI Interrupt 0000:02:01.0[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11
ACPI: PCI Interrupt 0000:00:1f.1[A] -> Link [LNKC] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI Interrupt Link [LNKH] enabled at IRQ 11
ACPI: PCI Interrupt 0000:00:1d.7[D] -> Link [LNKH] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI Interrupt 0000:00:1d.0[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 11
ACPI: PCI Interrupt 0000:00:1d.1[B] -> Link [LNKD] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI Interrupt 0000:00:1d.2[C] -> Link [LNKC] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI Interrupt 0000:00:1f.5[B] -> Link [LNKB] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI Interrupt 0000:02:02.0[A] -> Link [LNKC] -> GSI 11 (level, low) -> IRQ 11

and from my .config:

Code:

root@flatline:/usr/src/linux# cat .config | grep -i acpi
# Power management options (ACPI, APM)
# ACPI (Advanced Configuration and Power Interface) Support
CONFIG_ACPI=y
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_VIDEO=y
# CONFIG_ACPI_HOTKEY is not set
CONFIG_ACPI_FAN=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_THERMAL=y
# CONFIG_ACPI_ASUS is not set
CONFIG_ACPI_IBM=y
# CONFIG_ACPI_TOSHIBA is not set
CONFIG_ACPI_BLACKLIST_YEAR=0
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_EC=y
CONFIG_ACPI_POWER=y
CONFIG_ACPI_SYSTEM=y
# CONFIG_ACPI_CONTAINER is not set
CONFIG_X86_ACPI_CPUFREQ=m
CONFIG_X86_SPEEDSTEP_CENTRINO_ACPI=y
# CONFIG_X86_ACPI_CPUFREQ_PROC_INTF is not set
CONFIG_PNPACPI=y
# CONFIG_SERIAL_8250_ACPI is not set

Any suggestions?
Thanks,
m

lestoil · 02-24-2006, 01:52 PM

Tuxmobile:Linux with laptops may have some notes on APM/ACPI for your thinkpad model. Or www.thinkwiki.org may have pertinent help. Some boot parameter may be needed depending on problems.
There are many linux-on-laptop SW install notes for your lappy including kernel and xorg files. Good luck.

macemoneta · 02-24-2006, 01:52 PM

Those messages seem to indicate that ACPI is running fine. What symptom(s) are you seeing?

lestoil · 02-24-2006, 02:44 PM

Try Marcin Wielgoszewski's Slackware 10.2 on a Thinkpad T42 for great notes.

adaptor · 02-24-2006, 04:33 PM

lestoil: Thanks for the info but Marcin's notes and the thinkwiki were what I used from the beginning...

macemoneta: The symptoms are just that it doesn't seem to work. I can't suspend to RAM or disk. I've tried with acpitool and with klaptop_acpi_helper. I'd like to be able to configure this using KDE control center but at the very least I'd like to be able to suspend from the prompt. I've got cpu throttling working, but I have to set the governor to on demand for that to work.

macemoneta · 02-24-2006, 07:20 PM

Have you seen the notes here?

lestoil · 02-25-2006, 11:45 AM

gentoo has acpi wiki with scripts that may help. BIOS has ACPI-AWARE OS ACPI 2.0 COMPLIANCE BIOS>AML ACPI table options enabled? Or Susp to RAM support + Repost video on S3 resume? Linux ACPI-HOWTO The Sequel by Ariel Glenn is a long thorough treatise that is good to keep as reference material. It reviews kernel config ,bios settings, and scripts that may be needed. Good luck. Great that you have an often used lappy for linux

adaptor · 02-28-2006, 12:18 AM

Thanks for the links. I'm falling a bit behind this but I hope to retackle it again this week. The Glenn tutorial looks promising. The notes that macemoneta posted seem to be for a 2.4 kernel. Is that correct? I thought the 2.6 kernels dealt with acpi differently than 2.4 kernels. Anyhow, thanks again both. I'll let you know what happens next.
m

rje_NC · 02-28-2006, 12:52 PM

I found on an old dell Latitude C600 and my Compaq Presario 2145 I needed to recompile the kernel and define all the ACPI and CPU frequency scalling options compiled into the kernel instead of as modules. After that, I was able to get things working well, including the battery charge option that I was most interested in.

Bob