F15 fails to suspend/hibernate on Thinkpad W510+

Bill Davidsen davidsen at tmr.com
Tue Jun 28 20:31:32 UTC 2011


Darryl L. Pierce wrote:
> On Fri, Jun 24, 2011 at 09:18:14AM -0500, Chris Adams wrote:
>> Once upon a time, Darryl L. Pierce<dpierce at redhat.com>  said:
>>> (mcpierce at mcpierce-laptop:~)$ pm-is-supported --suspend
>>> (mcpierce at mcpierce-laptop:~)$ echo $?
>>> 0
>>> (mcpierce at mcpierce-laptop:~)$ pm-is-supported --hibernate
>>> (mcpierce at mcpierce-laptop:~)$ echo $?
>>> 0
>>> (mcpierce at mcpierce-laptop:~)$ pm-is-supported --suspend-hybrid
>>> (mcpierce at mcpierce-laptop:~)$ echo $?
>>> 1
>>>
>>> Though I'm questioning this last once since I tried to do:
>>>
>>> pm-is-supported --suspend-hybrid&&  echo $?
>>>
>>> and it never showed the RC, telling me the command itself failed.
>>
>> Remember: exit code of zero is "success", non-zero is "failure".  It is
>> inverted from common usage, but allows for multiple "failure" exit
>> codes.
>
> Right. The manpage for pm-is-supported says that a 0 exit code means the
> feature _is_ supported, and 1 means it's _not_ supported. So in the
> above case suspend and hibernate are (in theory) supported, yet both
> result in my laptop being non-responsive. And in the last case the fact
> that:
>
> pm-is-supported --suspend-hybrid&&  echo $?
>
> fails to output the exit code tells me the arg is causing
> pm-is-supported itself to fail.
>
You have asked it to display the termination code if it terminates normally. Is 
that what you want? I would think you want to display it when it fails, maybe:
   pm-is-supported --suspend-hybrid && echo Supported || echo "Not supported $?"

Remember zero is good status...

-- 
Bill Davidsen <davidsen at tmr.com>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot


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