Bug 796904

Summary:	unable to change screen brightness after suspend on Thinkpad W520
Product:	[Fedora] Fedora	Reporter:	patrick korsnick <korsnick>
Component:	distribution	Assignee:	Control Center Maintainer <control-center-maint>
Status:	CLOSED DUPLICATE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	17	CC:	control-center-maint, dennis, mkasik, rstrode
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-04-01 22:24:51 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description patrick korsnick 2012-02-23 20:43:25 UTC

Description of problem:

f16 Gnome on thinkpad w520 running in descrete graphics mode (with noapic kernel flag) nouveau driver

initially i was able to use the fn + Brightness up/dn keys to change screen brightness but somewhere along the way it stopped working.

a google search said to try 'yum reinstall bash' and that fixed the problem for a while, but now it is broken again and trying to reinstall bash doesn't fix the problem.

tried using the GUI in System Settings->Screen but that doesn't work either

this functionality works fine on my f16 KDE and Xfce installs on same machine

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


How reproducible:

every time

Steps to Reproduce:
1. try to adjust screen brightness via keyboard or GUI
2.
3.
  
Actual results:

no brightness change
Expected results:
brightness to change

Additional info:

Comment 1 patrick korsnick 2012-02-24 05:24:45 UTC

correction: I was actually able to reproduce this problem on my f16 KDE and Xfce installs on the same machine- I was unable to adjust screen brightness. So it doesn't work on any f16 install on this machine.

Comment 2 patrick korsnick 2012-04-01 22:03:06 UTC

Additional info:

On f16 and f17 running the newest yum updated 3.3.0-X kernels I can change screen brightness _until_ i suspend the machine. After having suspended the machine the brightness controls do nothing. Screen is set at maximum brightness. This behavior happens on the GNOME, XFCE and KDE spins.

Comment 3 patrick korsnick 2012-04-01 22:24:51 UTC


*** This bug has been marked as a duplicate of bug 808942 ***