Ideas, troubles etc : See forum :
http://groups.yahoo.com/group/amilo
Thats the tricky part, I know that using a disfonctionnal PM can burn you CPU.
The fan starts at least each 5 mins
(when temperature reach 70 DC)
, and it takes 1 minute to decrease to 55 DC.
KDE's Klaptop (klaptopdeamon)
is designed for notebooks with Advanced Power Management (APM)
http://akpi.scmd.at/news.php
For longest life time,
should the battery *ever* stay inside the laptop
when laptop is used on PowerSupply ?
Finally sometimes on boot my amilo can not switched off,
so you can remove the battery while running, it did not hurt for me.
Should be comparated when using Windows (which may reduce cpu speed).
It is a bit loudy but not so annoying,
but on the upper right corner (leg burner).
So I guess I've done half off the Acpi tweaking ?
then how to put the comp on stanbye ?
POWER SUPPLY / BATTERY
Whith some tweaking I worked over 2.5 hours on battery,
I used linux +X11 +kde +emacs +mozilla +apache +php
Where to find replacement baterries ?
Custom batteries :
http://www.1001piles.com
Also how to build a powersupply adapter from a car's battery (12 V) ?
Motormate provide adapters (12V DC / 230V AC ~60 EUR)
APM
On Linux Knoppix Shutdown does not work by default, because it
disabled real poweroff (need to toggle option when building kernel)
man apm
modprobe apm
# apm -v -d
APM BIOS 1.2 (kernel driver 1.16)
On-line, no system battery
Using device 0x0a86, 1.16: 1.2
APM Flags = 0x03; Line Status = 0x01
Battery Status = 0xff; Battery Flags = 0x80
Battery %age = -1; Battery Time = -1, use_mins=0
# cat /proc/apm
1.16 1.2 0x03 0x01 0xff 0x80 -1% -1 ?
sleepd # shutdown the computer ?
To do it manually: as root, in a console, type 'apm --suspend'.
To hibernate (suspend) automaticly:
K-menu - Power Control - Display Power Control. Enable the checkbox.
# must recompile kernel # Compiling linux kernel update to 2.4.21 # select acpi modules #acpi -v acpi 0.06 # cat /proc/acpi/battery/BAT1/info # etc # lsmod ospm_battery 6660 0 (unused) ospm_processor 7176 0 (unused) ospm_system 6684 0 (unused) ospm_ec 4520 0 (unused) ospm_button 3984 0 (unused) ospm_thermal 6400 0 (unused) ospm_ac_adapter 2724 0 (unused) ospm_busmgr 14072 0 [ospm_battery ospm_processor ospm_system ospm_ec ospm_button ospm_thermal ospm_ac_adapter] cat /proc/acpi/info ACPI-CA Version: 20011018 Sx States Supported: S0 S3 S4 S5 # cat /proc/acpi/thermal/0/status temperature: 3232 dK state: ok # cat /proc/acpi/processor/0/status Bus Mastering Activity: ffffffff C-State Utilization: C1[430] C2[5669] C3[0] # cat /proc/acpi/thermal/0/info critical (S5): trip=4782 passive: trip=4732 tc1=2 tc2=5 tsp=150 devices=00000004 cooling mode: unknown polling: disabledThrottling reduce cpu usage (work i % of the time) did work for me on 2.6.0-test4
# cat /proc/acpi/processor/CPU0/throttling state count: 8 active state: T0 states: *T0: 00% T1: 12% T2: 25% T3: 37% T4: 50% # good enough for decoding divx T5: 62% # mp3 @128kbits T6: 75% T7: 87% # echo -n 4 > /proc/acpi/processor/CPU0/throttlingWhen using kernel 2.6.0-test4 , the fan has at least 2 speeds : 55+ dC & 75+ dC
Acpid enables to catch acpi events such as power button (which does 'halt')
# apt-get install acpid # cat /etc/acpi/* # boot # append="devfs=mount acpi=off"
Now I am curious on how to use cpufreq
cpufreqd: controls your cpu speed depending on your current battery level,
ac situation and running programs.
http://www.brodo.de/cpufreq/
It is a deamon that print on syslog,
but how to know what is the current frequency ?
http://www.acpi.info/
http://www.codemonkey.org.uk/projects/cpufreq/
http://acpi.sf.net/
http://www.cpqlinux.com/acpi-howto.html
http://www.tldp.org/HOWTO/ACPI-HOWTO/
http://www.winischhofer.net/linux2.shtml
# wget *.diff # gunzip # patch -p1 < acpi-*.diff # acpi -V Battery 1: unknown, 100% Thermal 1: ok, 65.0 degrees C AC Adapter 1: on-line # cat /proc/acpi/info version: 20030619 states: S0 S3 S4 S5 # cat /proc/acpi/thermal_zone/THRM/temperature temperature: 55 C # fan start at 70 # cat /proc/acpi/processor/CPU0/performance not supported # what shall I expect ? # cat /proc/acpi/thermal_zone/THRM/trip_points critical (S5): 205 C passive: 200 C: tc1=2 tc2=5 tsp=150 devices=0xc126d9c0 # cat /proc/acpi/battery/BAT1/info present: yes design capacity: 3900 mAh last full capacity: 3900 mAh battery technology: rechargeable design voltage: 14800 mV design capacity warning: 390 mAh design capacity low: 117 mAh capacity granularity 1: 64 mAh capacity granularity 2: 64 mAh model number: Panasonic_LiON serial number: battery type: LiON OEM info: FSC # cat /proc/acpi/battery/BAT1/state present: yes capacity state: ok charging state: unknown present rate: 0 mA remaining capacity: 3900 mAh present voltage: 14800 mVWe should decrease 205 DC to 90 DC to avoid cpu burning well maybe this shall never happend if fan never fail.
Section "Device" # @ /etc/X11/XF86Config-4 # http://rzr.online.fr/ Option "power_saver" # Option "StandbyeTime" "10" Option "SuspendTime" "20" Option "OffTime" "30" # ... EndSection # man xset # xset + dpms # # xset dpms force standby # or suspend # man XF86Config-4
# mkdir /sys && mount -t sysfs sysfs /sys # /usr/src/linux/Documentation/driver-model/overview.txt # apt-get install lm-sensors # sensors-detect # swsusp # shutdown -z # You need to append resume=/dev/your_swap_partition to kernel command line. # Then you suspend by # echo 4 > /proc/acpi/sleephttp://swsusp.sourceforge.net
laptopkernel is a patchset for the linux kernel containing several
useful patches for laptop-users. It contains acpi, software suspend,
supermount and some hardware compatibility patches.
http://savannah.nongnu.org/projects/laptopkernel/
lm_sensors
http://secure.netroedge.com/~lm78/
http://tuxmobil.org/apm_linux.html
http://www.mc.man.ac.uk/LDP/HOWTO/Ecology-HOWTO.html
http://www.gkrellm.net/
http://www.linuxfocus.org/English/November2003/article315.shtml