For me the sleep feature stopped working when updating to 10.04 (I remember it very clearly) and it has been broken every since.
It tries to sleep, but it gets stuck somewhere in the process. The screen goes black with a blinking cursor, but nothing more happens.
I've been running "dist-upgrade" ever since I installed Ubuntu 9.04, and was told that might be an issue. So to debug (and rule out any inconsistencies in my install) I've completely removed and re-installed Ubuntu 11.10. But the issue is still there and reproducible every time.
WORKAROUND: unload tmp_tis before suspend. I've added it to the SUSPEND_MODULES list in /etc/pm/config.d/modules.
peter@zepto:~$ uname -a
Linux zepto 3.0.0-12-generic #20-Ubuntu SMP Fri Oct 7 14:56:25 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: hibernate (not installed)
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
Date: Thu Mar 8 21:51:02 2012
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
ProcEnviron:
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: hibernate
UpgradeStatus: No upgrade log present (probably fresh install)
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: peter 1446 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf0500000 irq 46'
Mixer name : 'Realtek ALC268'
Components : 'HDA:10ec0268,11700040,00100003 HDA:10573055,10573055,00100700'
Controls : 22
Simple ctrls : 14
DistroRelease: Ubuntu 11.10
HibernationDevice: RESUME=UUID=a5886402-d5a1-466f-914a-a9e747ddc97a
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MachineType: Zepto Znote
Package: linux (not installed)
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcEnviron:
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=475ed585-21a8-475e-9c27-9354022fcd86 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
RelatedPackageVersions:
linux-restricted-modules-3.0.0-12-generic N/A
linux-backports-modules-3.0.0-12-generic N/A
linux-firmware 1.60
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
Tags: oneiric running-unity
Uname: Linux 3.0.0-12-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 12/20/2007
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: Z14ND06
dmi.board.name: Znote
dmi.board.vendor: Zepto
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 1
dmi.chassis.vendor: Zepto
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrZ14ND06:bd12/20/2007:svnZepto:pnZnote:pvr6024W:rvnZepto:rnZnote:rvrNotApplicable:cvnZepto:ct1:cvrN/A:
dmi.product.name: Znote
dmi.product.version: 6024W
dmi.sys.vendor: Zepto
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: peter 1679 F.... pulseaudio
/dev/snd/pcmC0D0p: peter 1679 F...m pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf0500000 irq 45'
Mixer name : 'Realtek ALC268'
Components : 'HDA:10ec0268,11700040,00100003 HDA:10573055,10573055,00100700'
Controls : 23
Simple ctrls : 13
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=a5886402-d5a1-466f-914a-a9e747ddc97a
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MachineType: Zepto Znote
Package: linux (not installed)
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=475ed585-21a8-475e-9c27-9354022fcd86 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.2.0-24.38-generic 3.2.16
RelatedPackageVersions:
linux-restricted-modules-3.2.0-24-generic N/A
linux-backports-modules-3.2.0-24-generic N/A
linux-firmware 1.79
SourcePackage: linux
Tags: precise precise
Uname: Linux 3.2.0-24-generic x86_64
UpgradeStatus: Upgraded to precise on 2012-05-19 (3 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 12/20/2007
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: Z14ND06
dmi.board.name: Znote
dmi.board.vendor: Zepto
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 1
dmi.chassis.vendor: Zepto
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrZ14ND06:bd12/20/2007:svnZepto:pnZnote:pvr6024W:rvnZepto:rnZnote:rvrNotApplicable:cvnZepto:ct1:cvrN/A:
dmi.product.name: Znote
dmi.product.version: 6024W
dmi.sys.vendor: Zepto
apport information