Bugs:Suspend Failure

From openSUSE

Important

The default suspend framework has changed for openSUSE 10.2 from powersaved to pm-utils. There are different bug reporting instructions for both.

General information

Suspending notebooks is a somewhat experimental feature. It depends heavily on the used hardware if it works or not. Find or add some information at the page HCL/Laptops about your special hardware. Before reporting a bug, have a look at the documentation provided in /usr/share/doc/packages/pm-utils.

The articles in the Category Power Management might also give some useful hints, especially pm-utils, s2ram and ACPI Suspend debugging.

If you find a solution to an existing problem, file a bugreport that describes the problem, and what you had to do to solve the issue.

If you still cannot suspend after going through the documentation, file a bugreport and add the needed logfiles as attachments.

Things never to attach to a bugreport

• hwinfo output (it is usually just useless for this kind of bug)
• dmesg output (unless you have a good reason to believe that there is something important in there or the assignee explicitly asks for it, of course)

Systems using pm-utils (openSUSE 10.2 and later)

The interesting files are

  /var/log/pm-suspend.log
  /var/run/pm-suspend

Systems using powersaved (SLED10)

Most important logfiles regarding the powersave daemon are...

  /var/log/suspend2disk.log
  /var/log/suspend2ram.log
  /var/log/standby.log
  /var/lib/suspend2disk-state.resume
  /var/lib/suspend2ram-state
  /var/lib/standby-state.resume

For all systems

Debug information:

                 kernel:  uname -r
suspend to RAM problems:  s2ram -n

More useful information is often found on the screen. If something is broken, it is usually some kernel driver, therefore trying with as little as possible modules loaded helps a lot. Also try to suspend from console, preferably without X running. Booting with init=/bin/bash, then swapon and starting suspend sequence manually usually does the trick. Then it is good idea to try with latest vanilla kernel. Manual suspending may be done (as root) with:

pm-hibernate     set machine into suspend-to-disk
pm-suspend       set machine into suspend-to-ram

On old SLED10 systems, powersave is used instead (no root privileges needed):

powersave -U     set machine into suspend-to-disk
powersave -u     set machine into suspend-to-ram

For more information about powersave see the manual page powersave(8).

For suspend-to-RAM, things are complicated by video problems. After installing the package kernel-source, you find more information in the file /usr/src/linux/Documentation/power/video.txt. The s2ram-Page is also very helpful to debug suspend-to-RAM issues.