pm-utils and/or uswsusp

[emninger]

I do not find nothing in the extensions regard powermanagement, exception made for the xfce power manager. I'd like to have pm-utils to be able to do s2ram.

[Misalf]

You can set your box to Suspend to RAM like so:

Code: [Select]

sudo su "root" -c "echo -n mem > /sys/power/state"

If you have a swap partition or a swap file you can use Suspend to DISK:

Code: [Select]

sudo su "root" -c "echo -n disk > /sys/power/state"

I didn't play with these two yet...

Code: [Select]

sudo su "root" -c "echo -n standby > /sys/power/state"


Code: [Select]

sudo su "root" -c "echo -n freeze > /sys/power/state"


[emninger]

You can set your box to Suspend to RAM like so:

Code: [Select]

sudo su "root" -c "echo -n mem > /sys/power/state"

If you have a swap partition or a swap file you can use Suspend to DISK:

Code: [Select]

sudo su "root" -c "echo -n disk > /sys/power/state"

I didn't play with these two yet...

Code: [Select]

sudo su "root" -c "echo -n standby > /sys/power/state"


Code: [Select]

sudo su "root" -c "echo -n freeze > /sys/power/state"


Wow, great! Thanks a lot!

[hiro]

sudo su is redundant. su "root" is also redundant.
use sudo sh -c instead.

[Misalf]

True. Not sure why I had these entries in my WM for so long.
Adjusted. Thanks.

[emninger]

Just a question: I created a shell script with the command (corrected ). Now i'd like to find the way how to make it executed on close_lid. But i do not see how.

What i did is to execute it by a fluxbox shortcut (key).

[hiro]

I run it from /usr/local/etc/acpi/actions/lm_lid.sh, but acpid needs to be running and there needs to be the right /usr/local/etc/acpi/events/lm_lid pointing to the action

[emninger]

....
If you have a swap partition or a swap file you can use Suspend to DISK:

Code: [Select]

sudo su "root" -c "echo -n disk > /sys/power/state"
....

You're sure it works also with a swapfile (not partition!)? And what would happen, if the swapfile has not enough space? (i set a swapfile of 1 gig which is the same as the ram on the netbook. To not loose too much of disposable space of the internal sata flashdisk, which is pretty fast though. But i see, sometimes there are used for swap 100/200 mb).

[Misalf]

In theory yes.
https://www.kernel.org/doc/Documentation/power/swsusp-and-swap-files.txt

I couldn't get it to work though.

Code: [Select]

sudo sh -c "echo -n shutdown > /sys/power/disk" ; sudo sh -c "echo -n disk > /sys/power/state"
sh: write error: No such device

Swap file / partition needs to be larger than RAM.

In addition to the boot code  resume=/dev/sdXY , also  resume_offset=  is needed.
e2fsprogs.tcz  contains  filefrag  which can be used to get the file header offset of the swap file.

Code: [Select]

sudo filefrag -v /mnt/sda3/tc.swp | grep -m1 "0:"

filefrag  doesn't seem to work for a swap file stored on a FAT formatted partition.

[emninger]

Ok. Practically, i can live with STR only. It's more a matter of perfectionism to get working STD as well.

In any case, my situation is this: Netbook with 1 gig ram, and 16 gig internal sata flash disk. Since i'm encountering trouble with the zram-swap option and the sata flash is decently fast i thought a swapfile might be an option. Since you're saying it should be larger than the ram: By how much? I'd prefer to waste as little as possible of the storing space

Thanks a lot in advance!