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--- wiki:cpu_frequency_scaling_basics [2013/02/22 18:18] – Rich
+++ wiki:cpu_frequency_scaling_basics [2014/12/26 06:43] (current) – bmarkus
@@ Line 12: / Line 12: @@
 ===== #VIEW CPU FREQUENCY INFORMATION =====
-If you want to view actual CPU frequency settings, install cpufreq-utils.tcz extension and use command:
+If you want to view actual CPU frequency settings, install cpufrequtils.tcz extension and use command:
 cpufreq-info
@@ Line 68: / Line 68: @@
 laptop, but may still be applicable if you run into a similiar problem.\\
 Installed cpufrequtils and selected ondemand govenor. The policy line from the cpufreq-info command read:\\
-<quote>current policy: frequency should be within 800 MHz and 800 MHz.</quote>
+<code>current policy: frequency should be within 800 MHz and 800 MHz.</code>
+indicated that CPU was locked at 800Mhz. Executing the command:
+<code>cat /sys/devices/system/cpu/cpu0/cpufreq/bios_limit</code>
+returned the value 800000 (frequency in Khz). Using the boot code:
+<code>processor.ignore_ppc=1</code>
+fixed that. Now bios_limit contains 2267000 (2.267Ghz), the maximum speed for this CPU. Checking\\
+\proc\cpuinfo several times showed that the frequency was bouncing between 800Mhz and 2.27Ghz\\
+even though the machine was not doing anything. Changing the governor to conservative fixed that.\\
+For links to bug reports that helped solve this problem, see:\\
+http://forum.tinycorelinux.net/index.php/topic,14917.msg85013.html#msg85013