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Built-in suspend and hibernate doesn't work at all. It worked on
previous releases (maverick, natty)

I've tried using uswsusp, and that produces the same errors.

In the dmesg I find the following:

[  154.966016] PM: Syncing filesystems ... done.
[  154.969874] PM: Preparing system for mem sleep
[  155.117650] Freezing user space processes ... (elapsed 0.01 seconds) done.
[  155.132120] Freezing remaining freezable tasks ... 
[  175.148079] Freezing of tasks failed after 20.01 seconds (1 tasks refusing to freeze, wq_busy=0):
[  175.148178] khubd           D 403cc389     0    19      2 0x00800000
[  175.148184]  f39b1ebc 00000046 f38db2c0 403cc389 008db2c0 f38c0000 f38db2c0 c152c75d
[  175.148192]  0000c526 c4c6ef3b 00000028 c1882e80 c1882e80 0000c52d f38c0000 f4a05e80
[  175.148200]  c153a3c0 c13bb620 f4a05e80 f0f1b180 f73a4500 c13bb600 000003e8 f39b1e80
[  175.148212] Call Trace:
[  175.148221]  [<c152c75d>] ? schedule+0x2fd/0x6a0
[  175.148226]  [<c13bb620>] ? urb_destroy+0x20/0x30
[  175.148230]  [<c13bb600>] ? usb_unlink_anchored_urbs+0x30/0x30
[  175.148234]  [<c13bb620>] ? urb_destroy+0x20/0x30
[  175.148239]  [<c127dced>] ? kref_put+0x2d/0x70
[  175.148244]  [<c1027f38>] ? default_spin_lock_flags+0x8/0x10
[  175.148248]  [<c152e7df>] ? _raw_spin_lock_irqsave+0x2f/0x50
[  175.148253]  [<c1056b4a>] ? lock_timer_base+0x2a/0x50
[  175.148257]  [<c152d0ee>] schedule_timeout+0x10e/0x250
[  175.148261]  [<c13bc3d1>] ? usb_control_msg+0x91/0xc0
[  175.148265]  [<c1056b70>] ? lock_timer_base+0x50/0x50
[  175.148269]  [<c152d24a>] schedule_timeout_uninterruptible+0x1a/0x20
[  175.148273]  [<c1058947>] msleep+0x17/0x30
[  175.148278]  [<c13b4a12>] hub_power_on+0x62/0x70
[  175.148282]  [<c13b7574>] hub_events+0x324/0x520
[  175.148287]  [<c1067aaf>] ? finish_wait+0x4f/0x70
[  175.148290]  [<c13b8254>] hub_thread+0x24/0x130
[  175.148294]  [<c1067940>] ? wake_up_bit+0x30/0x30
[  175.148298]  [<c13b8230>] ? usb_authorize_device+0x150/0x150
[  175.148302]  [<c1067425>] kthread+0x75/0x80
[  175.148305]  [<c10673b0>] ? kthread_bind+0x80/0x80

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: hibernate 1.99-1.1
Uname: Linux 3.0.0-0300-generic i686
Architecture: i386
Date: Tue Aug  9 01:33:27 2011
Dependencies:
 
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
PackageArchitecture: all
ProcEnviron:
 LANG=hu_HU.UTF-8
 SHELL=/bin/bash
SourcePackage: hibernate
UpgradeStatus: Upgraded to oneiric on 2011-08-01 (7 days ago)

** Affects: linux (Ubuntu)
     Importance: Low
         Status: Incomplete


** Tags: apport-bug i386 oneiric precise running-unity
-- 
Suspend/hibernate doesn't work on oneiric
https://bugs.launchpad.net/bugs/823015
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