[Bug 572171] Re: suspend often hangs with blank screen

[Erno Kuusela]

The most recent suspend failure shows this in pm-suspend log:

Initial commandline parameters: 
Thu Apr 29 18:24:38 EEST 2010: Running hooks for suspend.
/usr/lib/pm-utils/sleep.d/000kernel-change suspend suspend:success.
/usr/lib/pm-utils/sleep.d/00logging suspend suspend:Linux ubuntu 2.6.32-21-gener
ic #31-Ubuntu SMP Tue Apr 13 20:37:36 UTC 2010 x86_64 GNU/Linux
Module                  Size  Used by
ath9k                 328829  0 
usbhid                 40988  0 
hid                    83376  1 usbhid
btrfs                 476631  0 
zlib_deflate           21834  1 btrfs
crc32c                  2983  1 
libcrc32c               1244  1 btrfs
ufs                    73778  0 
qnx4                    7736  0 
hfsplus                77769  0 
hfs                    47269  0 
minix                  29315  0 
ntfs                   97936  0 
vfat                   10802  0 
msdos                   7936  0 
fat                    55350  2 vfat,msdos
jfs                   184760  0 
xfs                   540310  0 
exportfs                4202  1 xfs
reiserfs              243637  0 
binfmt_misc             7960  1 
ppdev                   6375  0 
arc4                    1473  2 
snd_hda_codec_conexant    28745  1 
snd_hda_intel          25645  2 
snd_hda_codec          85727  2 snd_hda_codec_conexant,snd_hda_intel
snd_hwdep               6924  1 snd_hda_codec
snd_pcm_oss            41394  0 
snd_mixer_oss          16299  1 snd_pcm_oss
snd_pcm                87850  3 snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_seq_dummy           1782  0 
snd_seq_oss            31219  0 
snd_seq_midi            5829  0 
snd_rawmidi            23388  1 snd_seq_midi
snd_seq_midi_event      7267  2 snd_seq_oss,snd_seq_midi
snd_seq                57417  6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
mac80211              238128  1 ath9k
fbcon                  39270  71 
snd_timer              23553  2 snd_pcm,snd_seq
tileblit                2487  1 fbcon
joydev                 11072  0 
snd_seq_device          6824  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
ath                     9723  1 ath9k
font                    8053  1 fbcon
nvidia              10799466  44 
snd                    70978  16 snd_hda_codec_conexant,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
uvcvideo               62403  0 
bitblit                 5811  1 fbcon
soundcore               8052  1 snd
softcursor              1565  1 bitblit
cfg80211              148386  3 ath9k,mac80211,ath
snd_page_alloc          8500  2 snd_hda_intel,snd_pcm
videodev               40486  1 uvcvideo
psmouse                64608  0 
acer_wmi               15829  0 
video                  20623  0 
atl1c                  32975  0 
intel_agp              29225  0 
v4l1_compat            15495  2 uvcvideo,videodev
vga16fb                12757  1 
lp                      9336  0 
v4l2_compat_ioctl32    12020  1 videodev
serio_raw               4918  0 
vgastate                9857  1 vga16fb
output                  2503  1 video
led_class               3732  2 ath9k,acer_wmi
parport                37160  2 ppdev,lp
ahci                   37646  2 
             total       used       free     shared    buffers     cached
Mem:       3087504    2726324     361180          0     445116    1122840
-/+ buffers/cache:    1158368    1929136
Swap:       262136     115336     146800
success.
/usr/lib/pm-utils/sleep.d/00powersave suspend suspend:success.
/usr/lib/pm-utils/sleep.d/00suspend-blacklist suspend suspend:success.
/usr/lib/pm-utils/sleep.d/01PulseAudio suspend suspend:success.
/etc/pm/sleep.d/10_grub-common suspend suspend:success.
/etc/pm/sleep.d/10_unattended-upgrades-hibernate suspend suspend:success.
/usr/lib/pm-utils/sleep.d/49bluetooth suspend suspend:not applicable.
/usr/lib/pm-utils/sleep.d/55NetworkManager suspend suspend:not applicable.
/usr/lib/pm-utils/sleep.d/75modules suspend suspend:success.
/usr/lib/pm-utils/sleep.d/90clock suspend suspend:not applicable.
/usr/lib/pm-utils/sleep.d/91wicd suspend suspend:success.
/usr/lib/pm-utils/sleep.d/94cpufreq suspend suspend:success.
/usr/lib/pm-utils/sleep.d/95anacron suspend suspend:stop: Unknown instance: 
success.
/usr/lib/pm-utils/sleep.d/95led suspend suspend:not applicable.
/usr/lib/pm-utils/sleep.d/98video-quirk-db-handler suspend suspend:success.
/usr/lib/pm-utils/sleep.d/99video suspend suspend:kernel.acpi_video_flags = 0
success.
/etc/pm/sleep.d/action_wpa suspend suspend:success.
Thu Apr 29 18:24:45 EEST 2010: performing suspend
Initial commandline parameters: 
Fri Apr 30 12:10:15 EEST 2010: Running hooks for suspend.

(last 2 lines are already from the next suspend)

-- 
suspend often hangs with blank screen
https://bugs.launchpad.net/bugs/572171
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