Environment: Core i7 M620; ondemand; acpi-cpufreq; microcode/version == 0xc Description: When I set scaling_min_freq on all cores, only cpu0 retains its value after awaking from suspend-to-ram. All other cores revert to the minimum frequency. Expected behaviour: Cores would retain scaling_min_freq after waking.
Created attachment 69062 [details] dmesg output Snippet of dmesg at sleep/wake border.
It's great that the kernel bugzilla is back. Can you please verify if the problem still exists in the latest upstream kernel?
On 3.2.5, all the cores >0 have scaling_min_freq at cpuinfo_min_freq.
please attach the output of "grep . /sys/devices/system/cpu/cpu*/cpufreq/*" both before and after suspend.
The same behaviour is seen in 3.6.1 kernel. See attached before and after results.
Created attachment 88311 [details] sys cpufreq values before shutdown
Created attachment 88321 [details] sys cpufreq values after shutdown FWIW, I use KDE's hibernate command to go to sleep.
Hi Bill, Do you still have this problem on latest mainline kernel? Thanks.
Hi Bill: Any update on this bug? Does this bug take place during s2ram?
*** This bug has been marked as a duplicate of bug 15295 ***
Hi Bill, I think this is a duplicate of bug 15295, and should have been fixed by latest upstream kernel v3.10-rc2+. If you are still available, please test it and report back, thanks.