I've got Maverick on a Sony Vaio M111AX. In Lucid, I was able to suspend, in Maverick I'm not.
Early versions including the Maverick Beta would successfully terminate my X session, and then init would try to switch runlevels and crash after only one or two steps had been displayed in the text-mode console. With updated packages since the Beta, Gnome's menus disappear, but the system crashes with the desktop image still displayed.
This seems like a power management issue, but I'm not sure.
WORKAROUND: Adding this to /etc/modprobe.d/blacklist.conf:
blacklist rt2800pci
blacklist rt2800lib
blacklist rt2x00usb
blacklist rt2x00pci
blacklist rt2x00lib
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image (not installed)
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC259 Analog [ALC259 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC259 Analog [ALC259 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: gabriel 1457 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfeb00000 irq 44'
Mixer name : 'Realtek ALC259'
Components : 'HDA:10ec0269,104d4a00,00100100'
Controls : 13
Simple ctrls : 8
Date: Thu Sep 23 20:05:20 2010
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=14bbafb1-ff38-41da-8520-b8c419ef72ed
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Beta i386 (20100901.1)
MachineType: Sony Corporation VPCM111AX
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=7c5aa1e7-4a24-47c7-b454-dc570cbf8519 ro quiet splash
ProcEnviron:
LANG=en_US.utf8
SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.38
SourcePackage: linux
StagingDrivers: rt2860sta
Title: [STAGING]
dmi.bios.date: 05/12/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: R0120Z4
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR0120Z4:bd05/12/2010:svnSonyCorporation:pnVPCM111AX:pvrC6X00KER:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: VPCM111AX
dmi.product.version: C6X00KER
dmi.sys.vendor: Sony Corporation
Hah! I finally found it! It's one of the rt2x00 modules. Adding this to /etc/modprobe.
blacklist rt2800pci
blacklist rt2800lib
blacklist rt2x00usb
blacklist rt2x00pci
blacklist rt2x00lib
Allows my laptop to successfully reboot, shutdown, hibernate and sleep.
Looks like maybe the system was stalling for ever waiting for the rt2800pci bits to do something.
Blacklisting them seems to fix it!