box can sleep but not hibernate (and could do both on natty)
Posted: Sun Aug 21, 2011 10:36 pm
box can sleep but not hibernate (and could do both on natty)
Mostly my new LMDE box just works, except for a few annoyances. One is, it can sleep but not hibernate. Unfortunately lack of hibernation is a real problem for me, since my battery capacity is low and declining :-( The lack annoys all the more because the box hibernated successfully under Natty, so I'm pretty sure it's not a hardware problem. How to fix? FWIW
So it looks to me like I'm doing everything right:
Mostly my new LMDE box just works, except for a few annoyances. One is, it can sleep but not hibernate. Unfortunately lack of hibernation is a real problem for me, since my battery capacity is low and declining :-( The lack annoys all the more because the box hibernated successfully under Natty, so I'm pretty sure it's not a hardware problem. How to fix? FWIW
Code: Select all
me@it:~$ inxi -SMCI
System: Host: it Kernel: 2.6.39-2-amd64 x86_64 (64 bit) Desktop Gnome 2.30.2 Distro: Linux Mint Debian Edition
Machine: Mobo: System76 model: Pangolin Performance version: panp5 Bios: Phoenix version: 1.02.22 date: 04/06/2009
CPU: Dual core Intel Core2 Duo CPU T6500 (-MCP-) cache: 2048 KB flags: (lm nx sse sse2 sse3 sse4_1 ssse3)
Clock Speeds: 1: 1200.00 MHz 2: 1200.00 MHz
Info: Processes: 145 Uptime: 20 min Memory: 820.4/3933.9MB Client: Shell inxi: 1.7.23
me@it:~$ sudo blkid | fgrep 'swap'
/dev/sda3: UUID="0f0b27ab-50e2-44e8-a7d1-7af8242b0471" TYPE="swap"
me@it:~$ cat /etc/initramfs-tools/conf.d/resume
RESUME=UUID=0f0b27ab-50e2-44e8-a7d1-7af8242b0471
me@it:~$ sudo fgrep -ie 'swap' /etc/fstab
# /dev/sda3 swap swap sw 0 0
UUID=0f0b27ab-50e2-44e8-a7d1-7af8242b0471 swap swap sw 0 0
me@it:~$ sudo parted -l print
Model: ATA ST9250410AS (scsi)
Disk /dev/sda: 250GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 1049kB 501MB 500MB primary ext4 boot
2 501MB 20.5GB 20.0GB primary ext4
3 20.5GB 29.5GB 9001MB primary linux-swap(v1)
4 29.5GB 250GB 221GB extended
5 29.5GB 250GB 221GB logical ext4
me@it:~$ free
total used free shared buffers cached
Mem: 4028296 1204800 2823496 0 67068 311876
-/+ buffers/cache: 825856 3202440
Swap: 8790012 0 8790012- I have sizeof(swap) > 2*sizeof(RAM)
- the swap line in /etc/fstab looks correct
- /etc/fstab and /etc/initramfs-tools/conf.d/resume know the swap partition's UUID
- suspend via Fn-F4: resumes normally
- suspend via Log Out Button: resumes normally
- suspend via `sudo pm-suspend`: resumes normally
- hibernate via `sudo pm-hibernate`: it shuts down (and more slowly than via `shutdown -PH now`), and then resumes like a cold boot :-(