http://bugzilla.kernel.org/show_bug.cgi?id=14492 Summary: speedstep-ich with compaq evo n800c not working anymore since 2.6.31.4 Product: Power Management Version: 2.5 Kernel Version: 2.6.31.5 Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: cpufreq AssignedTo: cpufreq@xxxxxxxxxxxxxxx ReportedBy: jvpeetz@xxxxxx Regression: Yes Created an attachment (id=23543) --> (http://bugzilla.kernel.org/attachment.cgi?id=23543) output of acpidump Since kernel 2.6.31.4 (previous 2.6.31 kernels did not boot) the cpufreq driver speedstep-ich compiled into the kernel does not work anymore on my notebook Compaq Presario 2800 (customer version of EVO N800c) with Pentium 4m CPU with 1900 MHz. The directory cpufreq under /sys/devices/system/cpu/cpu0/ is missing and the CPU is running at a "fractal" frequency (1893.922 MHz). I recompiled the kernel with the CPUFreq processor drivers "ACPI Processor P-States" and "Intel Speedstep on ICH-M chipsets (ioport interface)" as modules. I manually tried to insert the cpufreq driver modules, result: # modprobe speedstep-ich FATAL: Error inserting speedstep_ich (/lib/modules/2.6.31.5/kernel/arch/x86/kernel/cpu/cpufreq/speedstep-ich.ko): No such device # modprobe -r speedstep-lib # modprobe acpi-cpufreq This driver works. the cpufreq entry in /sys/devices/system/cpu/cpu0/ exists and, since I'm using the ondemand governor, the CPU frequency without load is 1200 MHz (my Compaq has a Pentium 4m 1900 MHz). I attach the output of acpidump and dmesg, as well as my kernel config. I already contacted Zhao Yakui from Intel who suggested to open this bug report. -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
