[ltp] Suspend thinkpad

Florian Reitmeir linux-thinkpad@linux-thinkpad.org
Fri, 06 Apr 2012 14:42:41 +0200


first .. please learn how to quote,
http://en.wikipedia.org/wiki/Posting_style, what you are doing is Top 
Posting, which is very hard to read..

On 04/06/2012 12:18 PM, Elliot Orwells wrote:
> I should've asked, how long does suspend go on a full battery for you?
hours, days, i did not measure it, normally my battery in normal working 
load lasts about 10hrs, suspended a night is no problem, in my holidays 
it lastest a week.

> Leaving the laptop suspended with 50% battery exhausted the battery
> during the night.  I guess some device is not being deactivated.  I
> researched and it appears gnome is doing "suspend to ram" or S3 in
> http://www.kernel.org/doc/Documentation/power/states.txt, so only the
> RAM should be using the battery.

i use debian testing with gnome3, and i do not use any special hacking, 
or scripting. some time ago i discovered the TLP which is doing a great 
job in configuring the kernel correctly.

but i use a very long kernel commandline:
usbcore.autosuspend=5 snd_hda_intel.power_save=1 
e1000e.SmartPowerDownEnable=1 i915.i915_enable_rc6=1 
i915.i915_enable_fbc=1 i915.lvds_downclock=1 pcie_aspm=force 
intel_iommu=on quiet



> Actually hibernate (or "suspend to disk") is working with this latest
> stable kernel. No testing is needed for battery, the computer is shut
> down.
> For people with problems: I found the reading of<kernel
> root>/Documentation/power/* priceless, while knowing that to gnome:
> suspend= invoking S3, hibernate=S4.

i do not use hibernating, simply because i encrypted my home and swap, 
and since gnome3, gnome is not supporting hibernation to an encrypted swap.


> On Thu, Apr 5, 2012 at 3:14 PM, Elliot Orwells<elliot.orwells@gmail.com>  wrote:
>> Hi and special thanks, it worked! Strange, since Ubuntu had the same months ago.
>> My working "uname -a" for in-kernel suspension (called from Gnome 3.2):
>> Linux thinkpadx220 3.3.0-gentoo #2 SMP Tue Apr 3 19:10:56 WEST 2012 x86_64 Intel(R) Core(TM) i3-2310M CPU @ 2.10GHz GenuineIntel GNU/Linux
>> Best regards
>> On Thu, Apr 5, 2012 at 8:54 AM, Florian Reitmeir<florian@reitmeir.org>  wrote:

>>> Elliot Orwells wrote:
>>>> I have only Intel graphics. In windows it blinks in the same way when
>>>> suspended, so I assumed that and the empty error logs ment suspend was
>>>> sucessful. Here are the outputs you requested, any thoughts?
>>>> uname -a
>>>> Linux thinkpadx220 3.4.0-rc1 #3 SMP Wed Apr 4 15:02:48 WEST 2012 x86_64
>>>> Intel(R) Core(TM) i3-2310M CPU @ 2 .10GHz GenuineIntel GNU/Linux
Florian Reitmeir
E-Mail: florian@reitmeir.org
Tel: +43 650 2661660