Hi, I have an older VIA CPU which support the frequency scaling: processor : 0 vendor_id : CentaurHauls cpu family : 6 model : 7 model name : VIA Ezra stepping : 8 cpu MHz : 465.000 cache size : 64 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu de tsc msr cx8 mtrr pge mmx 3dnow bogomips : 933.73 clflush size : 32 cube:/sys/devices/system/cpu/cpu0/cpufreq# cat scaling_available_governors ondemand userspace powersave conservative performance What do you have in you /sys/devices/system/cpu/cpu0 directory? JM 2008/12/14 pw.marcus@xxxxxxxxxxx <pw.marcus@xxxxxxxxxxx>: > > Hello, > > On a desktop computer running with a Via C3 Nehemia (1 Ghz) CPU. > Does that CPU supports frequency scaling ? > > There seems to be problems with frequency scaling ! > > > # cat /proc/cpuinfo > processor : 0 > vendor_id : CentaurHauls > cpu family : 6 > model : 9 > model name : VIA Nehemiah > stepping : 4 > cpu MHz : 1004.871 > cache size : 64 KB > fdiv_bug : no > hlt_bug : no > f00f_bug : no > coma_bug : no > fpu : yes > fpu_exception : yes > cpuid level : 1 > wp : yes > flags : fpu de pse tsc msr cx8 mtrr pge cmov mmx fxsr sse up rng > rng_en > bogomips : 2010.97 > clflush size : 32 > > > kernel.log gives: > Dec 15 00:10:34 localhost kernel: longhaul: VIA C3 'Nehemiah B' [C5XLOH] CPU > detected. Powersaver supported. > Dec 15 00:10:34 localhost kernel: longhaul: No ACPI support. Unsupported > northbridge. > Dec 15 00:11:06 localhost kernel: NET: Registered protocol family 4 > Dec 15 00:11:06 localhost kernel: NET: Registered protocol family 3 > Dec 15 00:11:06 localhost kernel: NET: Registered protocol family 5 > Dec 15 00:16:17 localhost kernel: warning: process `nvidia-installe' used > the deprecated sysctl system call with 1.23. > Dec 15 00:16:17 localhost kernel: warning: process `nvidia-installe' used > the deprecated sysctl system call with 1.23. > Dec 15 00:16:17 localhost kernel: nvidia: module license 'NVIDIA' taints > kernel. > Dec 15 00:16:17 localhost kernel: ACPI: PCI Interrupt 0000:01:00.0[A] -> > Link [LNKA] -> GSI 5 (level, low) -> IRQ 5 > Dec 15 00:16:17 localhost kernel: NVRM: loading NVIDIA Linux x86 Kernel > Module 96.43.07 Wed Jul 2 12:17:43 PDT 2008 > Dec 15 00:16:17 localhost kernel: NVRM: CPU does not support the PAT, > falling back to MTRRs. > Dec 15 00:16:17 localhost kernel: warning: process `nvidia-installe' used > the deprecated sysctl system call with 1.23. > Dec 15 00:17:31 localhost kernel: NVRM: loading NVIDIA Linux x86 Kernel > Module 96.43.07 Wed Jul 2 12:17:43 PDT 2008 > Dec 15 00:17:31 localhost kernel: NVRM: CPU does not support the PAT, > falling back to MTRRs. > Dec 15 00:17:31 localhost kernel: agpgart: Found an AGP 2.0 compliant device > at 0000:00:00.0. > Dec 15 00:17:31 localhost kernel: agpgart: Putting AGP V2 device at > 0000:00:00.0 into 4x mode > Dec 15 00:17:31 localhost kernel: agpgart: Putting AGP V2 device at > 0000:01:00.0 into 4x mode > Dec 15 00:37:33 localhost kernel: longhaul: VIA C3 'Nehemiah B' [C5XLOH] CPU > detected. Powersaver supported. > Dec 15 00:37:33 localhost kernel: longhaul: No ACPI support. Unsupported > northbridge. > Dec 15 01:00:11 localhost kernel: longhaul: VIA C3 'Nehemiah B' [C5XLOH] CPU > detected. Powersaver supported. > Dec 15 01:00:11 localhost kernel: longhaul: No ACPI support. Unsupported > northbridge. > Dec 15 01:01:02 localhost kernel: longhaul: VIA C3 'Nehemiah B' [C5XLOH] CPU > detected. Powersaver supported. > Dec 15 01:01:02 localhost kernel: longhaul: No ACPI support. Unsupported > northbridge. > > > /var/log/messages gives: > Dec 15 00:10:33 localhost powersaved: Loading longrun > Dec 15 00:10:33 localhost powersaved: Loading longhaul > Dec 15 00:10:34 localhost kernel: longhaul: VIA C3 'Nehemiah B' [C5XLOH] CPU > detected. Powersaver supported. > Dec 15 00:10:34 localhost powersaved: Loading acpi_cpufreq > Dec 15 00:10:34 localhost powersaved: CPU frequency scaling is not supported > by your processor. > Dec 15 00:10:34 localhost powersaved: enter 'CPUFREQD_MODULE=off' in > /etc/powersave/cpufreq to avoid this warning. > Dec 15 00:10:34 localhost powersaved: Cannot load cpufreq governors - No > cpufreq driver available > > > > Does that CPU supports frequency scaling ? any idea ? > > Cheers > > -- > 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 > -- 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
