powertop reporting a huge number of acpi interrupts
Hi, I'm running Ubuntu Gutsy on a Zepto Znote 6625wd laptop. I ran powertop to see if I could improve the disappointing battery life and got the following results:
Code:
Cn Avg residency P-states (frequencies) |
I have the same problem, though slightly less.
No idea what causes it, either. Quote:
The problem only seems to happen in KDE. Does anybody know? <Edit> I went through a KDE startup manually, watching powertop. The problem seems to appear whenever anything related to ACPI is started, i.e. ksysguard or the taskbar applet. Doesn't go away when the respective program is closed though. Very weird. |
I also experience the same problem on my Znote 6625wd laptop with Ubuntu gutsy. Powertop says:
Code:
83,7% (1690,9) <interrupt> : acpi |
Same type of problem for me :/
Running Kubuntu 7.10 Cn Avg residency P-states (frequencies) C0 (cpu running) (39.5%) 2.21 Ghz 8.5% C1 0.0ms ( 0.0%) 2.21 Ghz 0.0% C2 0.2ms ( 7.1%) 1200 Mhz 0.6% C3 0.4ms (53.4%) 800 Mhz 90.9% Wakeups-from-idle per second : 1749.7 interval: 10.0s Power usage (5 minute ACPI estimate) : 360.4 W (0.0 hours left) Top causes for wakeups: 50.4% (2039.7) <interrupt> : acpi 25.3% (1023.7) <interrupt> : rtc |
site with relevance
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