Bug 642426

Summary:	Brightness control appears ineffective, stuck on full brightness of backlight
Product:	[Fedora] Fedora	Reporter:	cam <camilo>
Component:	xorg-x11-drv-nouveau	Assignee:	Ben Skeggs <bskeggs>
Status:	CLOSED WONTFIX	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	low
Version:	14	CC:	airlied, bskeggs, collura
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:	2012-08-16 17:39:31 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 cam 2010-10-12 21:16:21 UTC

Description of problem:
Using Fn-F3 and F4 to alter brightness, the popup appears and brightness slider can be moved up and down. However the screen remains at a constant high brightness.

Version-Release number of selected component (if applicable):
xorg-x11-drv-nouveau-0.0.16-13.20101010git8c8f15c.fc14.i686
kernel-2.6.35.6-40.fc14.i686

How reproducible:
It's happening now after a few suspend/resume cycles. I get the impression it's been happening all along. 

Steps to Reproduce:
1.In runlevel 5
2.Fn-F3 / Fn-F4 to alter brightness
3.Observe popup with slider moving 
  
Actual results:
Brightness remains constant

Expected results:
Brightness should vary with controls

Additional info:
Used to work reliably in F13 with Nvidia driver (not 100% sure about Nouveau)

Comment 1 cam 2010-10-12 21:19:26 UTC

Note the hardware is Nvidia Ion (MCP79):

02:00.0 VGA compatible controller: nVidia Corporation ION LE VGA (rev b1) (prog-if 00 [VGA controller])

Comment 2 Fedora End Of Life 2012-08-16 17:39:34 UTC

This message is a notice that Fedora 14 is now at end of life. Fedora 
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