Description of problem: frequency scaling is broken after suspend/resume cycle each suspend/resume cycle "current policy: frequency should be within" gest narrower in my case after 4 cycles it goes down to current policy: frequency should be within 800 MHz and 800 MHz Version-Release number of selected component (if applicable): I have tested two following kernels with the same result kernel-4.4.4-301.fc23.x86_64 kernel-4.5.0-0.rc7.git0.2.fc24.x86_64 How reproducible: always Steps to Reproduce: 1. cold boot laptop 2. login into KDE 3. supend laptop Actual results: frequency range available in the "current policy" is limited more than hardware limits i.e. analyzing CPU 0: driver: acpi-cpufreq CPUs which run at the same hardware frequency: 0 CPUs which need to have their frequency coordinated by software: 0 maximum transition latency: 10.0 us. hardware limits: 800 MHz - 2.50 GHz available frequency steps: 2.50 GHz, 2.50 GHz, 2.00 GHz, 1.60 GHz, 1.20 GHz, 800 MHz available cpufreq governors: conservative, userspace, powersave, ondemand, performance current policy: frequency should be within 800 MHz and 1.20 GHz. The governor "conservative" may decide which speed to use within this range. current CPU frequency is 1.20 GHz (asserted by call to hardware). boost state support: Supported: yes Active: yes analyzing CPU 1: driver: acpi-cpufreq CPUs which run at the same hardware frequency: 1 CPUs which need to have their frequency coordinated by software: 1 maximum transition latency: 10.0 us. hardware limits: 800 MHz - 2.50 GHz available frequency steps: 2.50 GHz, 2.50 GHz, 2.00 GHz, 1.60 GHz, 1.20 GHz, 800 MHz available cpufreq governors: conservative, userspace, powersave, ondemand, performance current policy: frequency should be within 800 MHz and 1.20 GHz. The governor "conservative" may decide which speed to use within this range. current CPU frequency is 1.20 GHz (asserted by call to hardware). boost state support: Supported: yes Active: yes Expected results: frequency range available for "current policy" stays the same after each resume Additional info: the only way to have full hardware range available is to reboot the machine kernel-4.3.5-300.fc23.x86_64 in the same configuration works OK Lenovo G550 laptop with Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 2 On-line CPU(s) list: 0,1 Thread(s) per core: 1 Core(s) per socket: 2 Socket(s): 1 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 23 Model name: Intel(R) Core(TM)2 Duo CPU T9300 @ 2.50GHz Stepping: 6 CPU MHz: 800.000 CPU max MHz: 2501.0000 CPU min MHz: 800.0000 BogoMIPS: 4987.79 Virtualization: VT-x L1d cache: 32K L1i cache: 32K L2 cache: 6144K NUMA node0 CPU(s): 0,1 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 nx lm constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 lahf_lm ida dtherm tpr_shadow vnmi flexpriority
*** Bug 1317146 has been marked as a duplicate of this bug. ***
*** This bug has been marked as a duplicate of bug 1317190 ***