Description of problem: Only userspace and performance works. When select ondemand, conservative, posersave nothing in gconf-editor, tooltip is userspace on cpufreq-applet. Changing userspace , "Clocksource tsc unstable (delta = -156897264 ns) appears in dmesg. $dmesg [...] Clocksource tsc unstable (delta = -156897264 ns) Version-Release number of selected component (if applicable): gnome-power-manager-2.18.2-1.fc7 How reproducible: always Steps to Reproduce: 1. select cpufreq_ac_policy on gconf-editor 2. 3. Actual results: Expected results: Additional info: $ dmesg | grep clock Time: acpi_pm clocksource has been installed. intel8x0_measure_ac97_clock: measured 50520 usecs intel8x0: clocking to 46784 CPU AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ $ dmesg | grep power powernow-k8: Found 2 AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ processors (version 2.00.00) powernow-k8: 0 : fid 0xc (2000 MHz), vid 0x8 powernow-k8: 1 : fid 0xa (1800 MHz), vid 0xa powernow-k8: 2 : fid 0x2 (1000 MHz), vid 0x12 cpuspeed daemon stop. hal-0.5.9-3.fc7 gnome-applets-2.18.0-7.fc7 kernel-2.6.20-1.3071.fc7
When cpuspeed daemon stops, gnome-power-manager doesn't use ondemand.
If you remove cpufreq applet, do you get a more predictable system?