Hi, I was finally able to get C3 state working. It seems that my BIOS is leaving USB controllers in an active state(?). Without any USB drivers loaded, C3 is not possible. With drivers loaded, but no device plugged in C3 works fine. Kernel is 2.6.13-rc3-mm3 + acpi-sbs. With working C3 there are indeed differences: Voltage is 16.5 V HZ=100: ~460 mA => 7.59 W HZ=250: ~468 mA => 7.72 W HZ=1000: ~494 mA => 8.15 W Results are quite stable. Test environment: - Pentium M 1.60GHz, model 13, stepping 6 - ondemand governor with acpi-cpufreq (idle at 600MHz) - no daemons running - no external devices attached, except display - WLAN disabled via kill switch - internal display disabled - hard disk in sleep mode (hdparm -Y), data dumped to ramfs - kernel configuration attached Regards
Attachment:
config
Description: Binary data
- Follow-Ups:
- Re: Power consumption HZ100, HZ250, HZ1000: new numbers
- From: Pavel Machek <[email protected]>
- Re: Power consumption HZ100, HZ250, HZ1000: new numbers
- From: Lee Revell <[email protected]>
- Re: Power consumption HZ100, HZ250, HZ1000: new numbers
- Prev by Date: [patch 07/15] Basic x86_64 support
- Next by Date: [patch 08/15] Basic SuperH support
- Previous by thread: [PATCH 2.4] Fix incorrect Asus k7m irq router detection
- Next by thread: Re: Power consumption HZ100, HZ250, HZ1000: new numbers
- Index(es):
