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Message-ID: <5183EC09.9080208@gmx.de> Date: Fri, 03 May 2013 18:55:37 +0200 From: Toralf Förster <toralf.foerster@....de> To: linux-acpi@...r.kernel.org CC: Linux Kernel <linux-kernel@...r.kernel.org> Subject: 3.9.0 + CONFIG_X86_INTEL_PSTATE=y -> ThinkPad T420 with i5 lost ACPI functionality The following file doesn't exists at my Gentoo Linux /sys/devices/system/cpu/cpufreq/ondemand/ignore_nice_load in 3.9.0 if I activate CONFIG_X86_INTEL_PSTATE=y That means, that a command like $> echo 1 > /sys/devices/system/cpu/cpufreq/ondemand/ignore_nice_load in /etc/rc.local is now no longer working. A high fan + high temperature are the result, even if just the BOINC client is run with low prio (nice 19) in the back ground. Manually loading the missing module won't work too : $> modprobe acpi_cpufreq modprobe: ERROR: could not insert 'acpi_cpufreq': Device or resource busy Is the behaviour a bug or a feature ? In the later case: How can I achieve the previous behaviour back ? This issue might affect the RH EL kernel too [1] where I observed a similar behaviour. [1] http://elrepo.org/bugs/view.php?id=379 -- MfG/Sincerely Toralf Förster pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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