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arosboro
n00b
Joined: 19 Aug 2003
Posts: 73
Location: Pennsylvania, USA
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 Posted: Thu Aug 21, 2003 3:32 pm Post subject: apm overridden by ACPI. |
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Hi,
When I installed the gentoo-sources (using genkernel) it already had acpi support. I found out how to load all of the acpi modules, but /proc/acpi/battery/* did not exist. Since my laptop is a compaq armada m300, I googled 'aramda m300 Power Management' and found http://wwwbode.cs.tum.edu/~acher/m300/ :
| Quote: | APM works, ie. reading battery filling and the standby (ie. suspend to RAM) works perfectly, in this standby state the battery lasts about 4-5 days. Standby to disk with Linux also worked for me in the beginning, but then I fiddled on the APM-settings in Windows, and now I can't get it to work again  |
Since I couldn't read the battery levels with acpi I figured that I'd need to install apm into the kernel. This morning I attempted to activate apm in the kernel, I did the following:
| Code: | make clean
cp .config myconfig # save configuration file
make mrproper # set kernel config to defaults
cp myconfig .config # put your config back
make menuconfig
# do your configuration
# I removed acpi and made apm a module
make dep
make clean
make bzImage
make modules
make modules_install
mount /boot
cp /usr/src/linux/arch/i386/boot/bzImage /boot # copies the boot image
/sbin/grub # updates grub?
umount /boot
reboot |
I think I did everything correctly, except when I rebooted the display was 800x600 instead of 1024x768 (this went to normal after x started) and apm was overridden.
I did the following to check what happened at boot:
| Code: | root # dmesg | grep apm
apm: BIOS version 1.2 Flags 0x03 (Driver version 1.16)
apm: overridden by ACPI.
options: [pci] [cardbus] [apm]
options: [pci] [cardbus] [apm]
apm: BIOS version 1.2 Flags 0x03 (Driver version 1.16)
apm: overridden by ACPI. |
I don't understand why this happens because I don't have acpi drivers set to load at all (at least I dont think I do).
another oddity was that I didn't have to emerge alsa-drivers when I rebooted, the sound worked fine.
Andrew |
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arosboro
n00b
Joined: 19 Aug 2003
Posts: 73
Location: Pennsylvania, USA
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| Posted: Thu Aug 21, 2003 3:40 pm Post subject: |
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I also get the following errors when trying to load the apm module:
| Code: | root # insmod apm
Using /lib/modules/2.4.20-gentoo-r6/kernel/arch/i386/kernel/apm.o
/lib/modules/2.4.20-gentoo-r6/kernel/arch/i386/kernel/apm.o: init_module: No such device
Hint: insmod errors can be caused by incorrect module parameters, including invalid IO or IRQ parameters.
You may find more information in syslog or the output from dmesg
root # modprobe apm
/lib/modules/2.4.20-gentoo-r6/kernel/arch/i386/kernel/apm.o: init_module: No such device
Hint: insmod errors can be caused by incorrect module parameters, including invalid IO or IRQ parameters.
You may find more information in syslog or the output from dmesg
/lib/modules/2.4.20-gentoo-r6/kernel/arch/i386/kernel/apm.o: insmod /lib/modules/2.4.20-gentoo-r6/kernel/arch/i386/kernel/apm.o failed
/lib/modules/2.4.20-gentoo-r6/kernel/arch/i386/kernel/apm.o: insmod apm failed
root # apm
No APM support in kernel
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