powersave features

['chris']

hi

howto check if a hardware supports the powersave features under linux ?

kind regards
chris

[Vipulinux · Accepted solution]

Hi

What hardware are you using, usually you will get the info on whether the HW has powersave utility fron the BIOS itself

Cheers

['chris']

I'm using following hardware:

# lshw
suse
description: Desktop Computer
width: 32 bits
capabilities: smbios-2.3 dmi-2.3
configuration: chassis=desktop
*-core
description: Motherboard
product: MV43P
vendor: Shuttle Inc
physical id: 0
*-firmware
description: BIOS
vendor: American Megatrends Inc.
physical id: 0
version: 07.00T (04/02/01)
size: 64KB
capacity: 192KB
capabilities: isa pci pnp apm upgrade shadowing escd cdboot bootselect socketedrom edd int13floppy360 int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int17printer int10video acpi usb agp ls120boot zipboot biosbootspecification
*-cpu
description: CPU
product: Intel(R) Pentium(R) 4 CPU 2.00GHz
vendor: Intel Corp.
physical id: 4
bus info: cpu@0
version: 15.2.4
slot: FC-478
size: 2GHz
capacity: 3GHz
width: 32 bits
clock: 100MHz
capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
configuration: id=0

['chris']

I have the following problem:

my OS is linux OPENSUSE 10.0
and during the startup I get a lot of POWERSAVE ERRORS:

Mar 17 15:42:40 suse rcpowersaved: CPU frequency scaling is not supported by your processor.
Mar 17 15:42:40 suse rcpowersaved: enter 'CPUFREQD_MODULE=off' in /etc/sysconfig/powersave/cpufreq to avoid this warning.
Mar 17 15:42:40 suse rcpowersaved: Cannot load cpufreq governors - No cpufreq driver available
Mar 17 15:42:40 suse [powersave]: ERROR (CPUFreq_Kernel:21) Can not set ondemand governor, maybe your cpufreq driver is too slow.
Mar 17 15:42:40 suse [powersave]: ERROR (CPUFreq_Kernel:23) Try CPUFREQ_CONTROL=userspace in /etc/sysconfig/powersave/cpufreq.
Mar 17 15:42:40 suse [powersave]: ERROR (PM_Interface:231) Cannot create cpufreq objects
Mar 17 15:42:40 suse SuSEfirewall2: Warning: ip6tables does not support state matching. Extended IPv6 support disabled.
Mar 17 15:42:40 suse SuSEfirewall2: Setting up rules from /etc/sysconfig/SuSEfirewall2 ...
Mar 17 15:42:41 suse [powersave]: ERROR (start:315) Could not establish DBus connection

['chris']

I've done the BIOS update, but it doesn't help !

my Power Management BIOS settings are:

ACPI AWARE O/S YES
POWER MANAGEMENT ENABLED
SUSPEND TIME OUT (MIN.) DISABLED
HARD DISK TIME OUT (MIN.) DISABLED
PWR BUTTON < 4 SEC INSTANT OFF
RESTORE ON AC/POWER LOSS POWER OFF
RESUME ON RTC ALARM DISABLED
RTC ALARM DATE 15
RTC ALARM HOUR 12
RTC ALARM MINUTE 30
RTC ALARM SECOND 30
LAN / RING POWER ON DISABLED

it could be something wrong ?