any way to disable powersave?

oily_rags · 10-31-2004, 02:12 PM

I have no need of powersave on this computer, and at least once that I know of, the hard disk shut down and locked my computer entirely, because it was trying to go to powersave mode, even though it's set on "performance". How do I get around this? thanks in advance

saravkrish · 10-31-2004, 02:22 PM

Hi,

Have you looked into hsparam? It's generally under /sbin/hdparam. Whatever distribution you are using, login as root (su -) before trying this so that hdparam is in the path.

hdparam --help (showing only options of interest)

Code:

Options:
...
 -B   set Advanced Power Management setting (1-255)
...
 -Z   disable Seagate auto-powersaving mode
....

~Sarav

oily_rags · 10-31-2004, 03:07 PM

I see hdparam in the directory you specified but when i su to root in the console and type in that command it says command not found

saravkrish · 10-31-2004, 03:15 PM

You should use "su -" (note the minus sign) or you should run

# /sbin/hdparam

Do post a reply when you get it all working. Might help someone else.

~Sarav

abisko00 · 10-31-2004, 03:52 PM

If this is SuSE 9.1, the settings of the powersave daemon can be changed in /etc/sysconfig/powersave/common.
Special parameters for hdparm are set in /etc/sysconfig/powersave/hdparm.

If you would like to switch-off the daemon, you can do this in the Yast 'Runlevel-Editor'

To switch-off all powersaving funtionality, boot with the parameter 'noacpi' or 'acpi=off'

oily_rags · 10-31-2004, 05:13 PM

I'm using suse 9.1. I disabled the service in the runlevel editor and it is now off, though when I switched it off, it gave me a message "turning on power management will improve performance" Is this really the case? The system feels exactly the same speed wise after shutting it off

abisko00 · 11-01-2004, 03:31 AM

I guess what they mean is that you'll have longer battery lifetime. But you won't get higher speed, since without powermanagment, the system runs on full speed.

Once I had the problem, that my laptop processor did not like to be run on full speed all the time, so it locked-up after 5 hrs. But that is no issue on a desktop computer.