commands in scripts are not working

I want to save some watts during usage of my laptop so i read that i must use these commands:

Code:

---

echo 5 > /proc/sys/vm/laptop_mode
echo 1 > /sys/module/snd_hda_intel/parameters/power_save
echo 3000 > /proc/sys/vm/dirty_writeback_centisecs
cpufreq-set -c 0 -g powersave
cpufreq-set -c 1 -g powersave
ethtool -s eth0 wol d

---

I had put these commands in to /etc/rc.local (no effect), /etc/sysctl.conf (no effect)

every time I log in I have to "sudo su" in terminal and insert upper commands

btw I have compilled newest stable kernerl with CONFIG_SND_HDA_POWER_SAVE_DEFAULT set to 1 but that desn't help too

During power up or re-boot there is a 1 minute delay before the CPUs are set to ondemand mode. I suspect your script runs before this time delay, and so your powersave settings get overwritten. see: /etc/init.d/ondemand
Perhaps you could delay your script longer with a sleep.
I don't know about your other commands.

Hi

Quote:

---

Originally Posted by Doug S

During power up or re-boot there is a 1 minute delay before the CPUs are set to ondemand mode. I suspect your script runs before this time delay, and so your powersave settings get overwritten. see: /etc/init.d/ondemand
Perhaps you could delay your script longer with a sleep.
I don't know about your other commands.

---

Yep. Bang on the money.

Maybe use a cron job @reboot with a sleep statement for 2 mins. Let the system settle down.

Thats the way i would do it.

Kind regards

let's forget on setting cpu to powersave mode (i recompiled kernel with powersave governor option and it is working ...for now)
#########################update
f***** was working , after rebot i have mode ondemand :/


what about rest commands

btw delaying script start don't delay also reboot by that time ?

Quote:

---

Originally Posted by pacman401

btw delaying script start don't delay also reboot by that time ?

---

Well, if you specify it as @reboot in a crontab then it means at the time the cron daemon starts. You can put something like

Code:

---

COMMAND | at now + 5 minutes

---

to make COMMAND be executed 5 minutes after that. See at(1)

Hi

Quote:

---

btw delaying script start don't delay also reboot by that time ?

---

Just to clarify i would have the sleep statement the script i would call from cron at reboot.

Kind regards

Quote:

---

Originally Posted by Doug S

During power up or re-boot there is a 1 minute delay before the CPUs are set to ondemand mode.

---

how to disable it / where is config to change that ondemand mode ?

see this.

solved by
sudo sh -c 'echo <num> > <cmd>'
http://askubuntu.com/questions/50242...-sudo-not-work
thx every one for trying help