[Bugme-new] [Bug 9181] New: cpu frequency governer does not change cpu frequency after hibernation and comeback

bugme-daemon at bugzilla.kernel.org bugme-daemon at bugzilla.kernel.org
Thu Oct 18 04:32:05 PDT 2007


http://bugzilla.kernel.org/show_bug.cgi?id=9181

           Summary: cpu frequency governer does not change cpu frequency
                    after hibernation and comeback
           Product: Power Management
           Version: 2.5
     KernelVersion: 2.6.21
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Hibernation/Suspend
        AssignedTo: power-management_other at kernel-bugs.osdl.org
        ReportedBy: bhasker at unixindia.com


Most recent kernel where this bug did not occur:
Distribution:
Hardware Environment: IBM T42
Software Environment: Debian GNU/Linux 4.0 (kernel 2.6.21)
Problem Description:
 When the system boots up (freshly), the cpu frequency (governer conservative)
works properly and switches the cpu speed smoothly from low to high and
viceversa based on the application using the system
 When the system is suspended to disk, and the system comes back after suspend,
the conservative governer stops working. Occasionally it starts working after a
very long time 


Steps to reproduce:


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