Bug 770501

Summary: screen can't wake up from s3
Product: Red Hat Enterprise Linux 5 Reporter: daiwei <wdai>
Component: kernelAssignee: Red Hat Kernel Manager <kernel-mgr>
Status: CLOSED NOTABUG QA Contact: Red Hat Kernel QE team <kernel-qe>
Severity: medium Docs Contact:
Priority: medium    
Version: 5.8CC: jfeeney, juzhang, michen, shuang
Target Milestone: rc   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-12-28 08:30:58 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Attachments:
Description Flags
dmidecode command output
none
serial console output none

Description daiwei 2011-12-27 06:25:35 UTC 
Description of problem:

Suspended by "echo 'mem' > /sys/power/state". Screen went dark, power
light *DID* flash, however when I pushed the power button the light went
on solid however the screen did not wake up

Version-Release number of selected component (if applicable):

2.6.18-302.el5

How reproducible:
3/3

Steps to Reproduce:
1.install RHEL 5.8 64

2. attempt to enter S3 by doing "# echo mem > /sys/power/state"

3.
  
Actual results:
system either acts like it will enter S3 but screen goes black and power light
does not flash periodically,when I pushed the power button the light went
on solid however the screen did not wake up.

system was accessible via network and serial console. 

Expected results:

 System should enter S3, power light should flash periodically, and hitting power button should resume system. screen should wake up.

Additional info:
Comment 1 daiwei 2011-12-27 06:26:32 UTC 
Created attachment 549651 [details]
dmidecode command output
Comment 2 daiwei 2011-12-27 06:28:12 UTC 
Created attachment 549652 [details]
serial console output
Comment 3 Matthew Garrett 2011-12-27 10:47:42 UTC 
Does running pm-suspend work? echo mem >/sys/power/state will *not* work on RHEL 5.
Comment 4 daiwei 2011-12-28 02:53:56 UTC 
On the same system,running pm-supend works well.Screen can wake up from s3.
Comment 5 Matthew Garrett 2011-12-28 08:30:58 UTC 
Thanks.