[Klug-general] Suspend to Disk - was laptops with linux

[Alan at comm-tech]

Built into any 2.6 kernel is swsusp. It can suspend by shutting down all 
but the RAM, or it  can suspend to file. I always found this swsusp to 
be buggy and it tended to lose all my bloody work at some random point 
between 10-15 suspend/resume operations.

As of kernel 2.6.17 I think, it is supposed to be better... but I still 
dont trust it.

The only 100% reliable suspend/resume is Suspend2... which for some 
reason was never incorporated into the kernel, so you still need a 
patch. It uses the swap partition to save the RAM into, and you can 
encrypt your hibernation file. Have been using this for a couple of 
years now, need to move around all the time and sometimes have to use my 
laptop in 10 locations in one day.  It's really solid,  I usually only 
need to reboot if attaching the thinkpad docking station. The downside 
is you have to roll a patch into your own kernel, but theres plenty of 
HOW-TO's, perhaps too many ;)

I see Suspend2 has now renamed  Check it out: http://www.tuxonice.net/

Alan

2.6.15-26-386 #1 PREEMPT Sat Aug 5 15:42:29 WST 2006 i686 GNU/Linux.
13:31:21 up 65 days,  5:54, 17 users,  load average: 0.61, 0.51, 0.38

------------------------------------------

Kevin Groves wrote  On 09/11/07 20:12:
> MacGyveR wrote:
>   
>> hello,
>> 	Anyone have suspend to ram or disk working on their laptop using the kernel 
>> acpi stuff. I'm not talking about any hardware suspend features that a laptop 
>> may have just the ones provided by the kernel like where you can use your 
>> swap to save the current ram contents to etc..
>>
>> Thanks in advance....
>>
>>     
> Yes I have it on my clapped out Dell. Works OK although after a couple
> or so consecutive attempts without a reboot it locks up.
>
>   

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