Bug 4847

Summary:	C1 & C2 Support
Product:	ACPI	Reporter:	Damien Bellegueulle (d.bellegueulle)
Component:	Config-Processors	Assignee:	acpi_config-processors
Status:	CLOSED CODE_FIX
Severity:	low
Priority:	P2
Hardware:	i386
OS:	Linux
Kernel Version:	2.6.12	Subsystem:
Regression:	---	Bisected commit-id:
Attachments:	dmesg cat /proc/acpi/processor/CPU1

Description Damien Bellegueulle 2005-07-05 11:31:11 UTC

Distribution: Mandriva 2005  
Hardware Environment: Notebook Asus M6Ne ( Bios 2008Ae , the last ) 
Software Environment: Kde 3.3.2  
Problem Description:   
  
active state:            C1 
max_cstate:              C8 
bus master activity:     00000000 
states:     <not supported>        
  
Steps to reproduce:

Comment 1 Damien Bellegueulle 2005-07-05 11:53:36 UTC

Created attachment 5270 [details]
dmesg

Comment 2 Damien Bellegueulle 2005-07-05 11:55:45 UTC

Created attachment 5271 [details]
cat /proc/acpi/processor/CPU1

Comment 3 Shaohua 2005-07-05 19:27:19 UTC

Could you please try latest kernel?

Comment 4 Damien Bellegueulle 2005-07-06 13:52:05 UTC

I use kernel 2.6.12 with patch acpi-20050408-2.6.12.diff

Comment 5 Shaohua 2005-07-06 19:57:50 UTC

Does this patch work for you?
http://sourceforge.net/mailarchive/forum.php?thread_id=7640723&forum_id=6102

Comment 6 Damien Bellegueulle 2005-07-07 12:06:36 UTC

Patch http://sourceforge.net/mailarchive/forum.php?
thread_id=7640723&forum_id=6102 not work ... Sorry

Comment 7 Shaohua 2005-07-07 18:03:15 UTC

Could you please attach the acpidmp output? Did your c state work before? 
Thanks!

Comment 8 Damien Bellegueulle 2005-07-13 11:56:31 UTC

active state:            C1 
max_cstate:              C8 
bus master activity:     00000000 
states: 
   *C1:                  type[C1] promotion[--] demotion[--] latency[001] 
usage[02675029] 
 
Ok with Acpi patch acpi-20050408-2.6.12.diff.gz  
 
Thanks !