-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/177076
Title: acpi-cpufreq doesn't allow >800Mhz on Fujistu T4220 Status in linux package in Ubuntu: Won't Fix Status in linux source package in Hardy: Won't Fix Status in linux package in Fedora: Won't Fix Bug description: Binary package hint: linux-source-2.6.24 If the machine (Fujitsu T4220) is booted without any cpufreq modules it runs at 2Ghz. Soon after I run 'modprobe acpi-cpufreq' the speed drops to 800Mhz When I load the acpi-cpufreq module at first it reports 2001000 for cpuinfo_cur_freq but drops through each of the available frequencies at a rate of about 1 step per second. After this no matter what I do I can't increase this (regardless of cpufreq governor used) According to /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_max_freq the max speed is 2001000 but scaling_max_freq is set to 800000 and can not be changed. I have tried "echo 2001000 > scaling_max_freq" but no change is made. Below is data I hope is useful # uname -a Linux fugue 2.6.24-2-generic #1 SMP Thu Dec 13 23:21:19 GMT 2007 x86_64 GNU/Linux root@fugue:/sys/devices/system/cpu/cpu0/cpufreq# grep "." * affected_cpus:0 1 cpuinfo_cur_freq:800000 cpuinfo_max_freq:2001000 cpuinfo_min_freq:800000 scaling_available_frequencies:2001000 2000000 1600000 1200000 800000 scaling_available_governors:userspace performance scaling_cur_freq:800000 scaling_driver:acpi-cpufreq scaling_governor:userspace scaling_max_freq:800000 scaling_min_freq:800000 scaling_setspeed:800000 # cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 Duo CPU T7300 @ 2.00GHz stepping : 10 cpu MHz : 800.000 cache size : 4096 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall lm constant_tsc arch_perfmon pebs bts rep_good pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm ida bogomips : 3994.31 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 Duo CPU T7300 @ 2.00GHz stepping : 10 cpu MHz : 800.000 cache size : 4096 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall lm constant_tsc arch_perfmon pebs bts rep_good pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm ida bogomips : 3989.97 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177076/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
