[Ubuntu Wiki] Update of "DebuggingKernelSuspend" by giecrilj

Ubuntu Wiki noreply at ubuntu.com
Sun May 12 14:54:01 UTC 2013


Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Ubuntu Wiki" for change notification.

The "DebuggingKernelSuspend" page has been changed by giecrilj:
http://wiki.ubuntu.com/DebuggingKernelSuspend?action=diff&rev1=39&rev2=40

Comment:
proceed only if successful

  OK.  With that understood....   In order to simulate your suspend/resume process, enter the following commands:
  
  {{{
- sudo sh -c "sync; echo 1 > /sys/power/pm_trace; pm-suspend"
+ sudo sh -c "sync && echo 1 > /sys/power/pm_trace && pm-suspend"
  }}}
  
  At this point your computer should enter the suspend state within a few seconds. Usually the power LED will slowly flash when in the suspended state. When that has happened, initiate the resume process by pressing the power button. Observe closely if the disk light comes on briefly. This indicates that resume has begun. If resume fails to complete, then press the power button until the computer turns off. Power on your computer making sure that it loads the same kernel that exhibited the resume problem. You have about 3 minutes to start this boot process before the information saved in the RTC gets corrupted.



More information about the Ubuntu-bugsquad mailing list