Bug 159791

Summary:	radeon power saving for 2373-HU6
Product:	[Fedora] Fedora	Reporter:	David Zeuthen <davidz>
Component:	kernel	Assignee:	Dave Jones <davej>
Status:	CLOSED RAWHIDE	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	mclasen, pfrields, pjones, sundaram, wtogami
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2005-09-04 23:25:00 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description David Zeuthen 2005-06-07 23:57:21 UTC

Hey, I followed the description at 

 http://www.livejournal.com/users/pjones_code/400.html

and put the radeon_force_sleep in modprobe.conf. With this, this script

 http://thinkwiki.org/wiki/ACPI_sleep_power_drain_test_script

says

 Tue Jun  7 19:28:00 EDT 2005
 before: 21680 mWh
 after: 21410 mWh
 diff: -270 mWh
 seconds: 1239 sec
 result: -784 mW
 Congratulations, your model seems NOT to be affected.

which is sweet. Please add

+	{
+		/* Reported by David Zeuthen <davidz> */
+		.ident = "IBM ThinkPad T41 (2373-HU6)",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "2373HU6"),
+		},
+	},

to linux-2.6.11-radeon-backlight.patch. Thanks!

Comment 1 Warren Togami 2005-06-08 02:36:44 UTC

Sweet, this is my model too.  I tested it this morning and it is working great.

Comment 2 Dave Jones 2005-06-09 03:32:14 UTC

I'm puzzled. The script say its not affected, why does it need adding ?

Comment 3 Warren Togami 2005-06-09 06:00:18 UTC

I am not sure what that script does, but testing both with and without this
radeonfb thing is a difference of 5000 to 1000 mWh power consumption in one hour
of sleeping.  It is proven beneficial on this model.

Comment 4 David Zeuthen 2005-06-09 14:38:41 UTC

In response to comment 2: The script was run with radeon_force_sleep=1. Without
that option the power consumption is about 5000 rather than 784. With the
white-list entry I posted we don't need the option :-)

Comment 5 Dave Jones 2005-07-05 20:10:09 UTC

fixed in CVS, will be in tomorrows build.