Am 20.05.2011 09:44, schrieb Arief M Utama: > Hi Ben, > > > > On 05/19/2011 08:36 PM, Ben Hutchings wrote: >> On Thu, 2011-05-19 at 13:53 +0700, Arief M Utama wrote: >>> Latest try with only pm-utils package, I can do hibernate and resume >>> just fine, but suspend and resume does not work, suspend ok, resume fail. >> Suspend and resume are normally handled by the kernel, with some help >> from initramfs-tools for resuming from disk. pm-utils is not required >> for this, although it has other useful functionality. >> > > My use-case is a reguler user, with laptop and using gnome3 desktop. So > is that mean, I dont need to install any other packages to do suspend > resume from the desktop? Was always under the impressions that at least > pm-utils is required. > > But, even so, I have done some test with "echo 'mem' > > /sys/power/state" and "echo 'disk' > /sys/power/state" few times before, > and it shows same behaviour with desktop initiated suspend and > hibernate, "mem" suspend failed at resume, "disk" hibernate-resume > working ok. >
gnome-power-manager uses upower (via D-Bus), which in turn just calls pm-suspend resp. pm-hibernate when requested by the user. pm-utils is a simple shell script/framework which allows to run scripts on suspend/resume to do certain tasks and then basically just runs echo (mem|disk) > /sys/power/state, just as you did manually. With KMS applying all the quirks in userspace has become obsolete and is only done if a non-KMS system is detected. So, if you use KMS, and echo 'mem' > /sys/power/state" fails, then this is a kernel issue and should be addressed there. Michael -- Why is it that all of the instruments seeking intelligent life in the universe are pointed away from Earth?
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