Bug 549074

Summary: Sony Vaio VGN-FW139E Laptop Screen Brightness cannot be decreased
Product: [Fedora] Fedora Reporter: lebosse.nicolas
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED WONTFIX QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: low    
Version: 12CC: anton, dougsland, foenixx, gansalmon, itamar, kernel-maint, pahan, partha1b, rvokal
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: 495315 Environment:
Last Closed: 2010-12-04 01:27:16 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 lebosse.nicolas 2009-12-20 09:40:10 UTC
+++ This bug was initially created as a clone of Bug #495315 +++

Description of problem:


Version-Release number of selected component (if applicable): 1.0.6


How reproducible: Use Sony Vaio VGN-FW139E (VGN-FW in general) laptop brightness controls


Steps to Reproduce:
1. Use Fn+F5 to decrease brightness
2. Use Fn+F6 to increase brightness
3.
  
Actual results: Nothing


Expected results: Expect the screen brightness to dim


Additional info: Read here that in Ubuntu, DSDT can be patched - not sure how to do that with Fedora 10:
http://vaioubuntu.wordpress.com/2008/12/04/finally-a-brightness-how-to-for-vaio-fw-series/

--- Additional comment from tuxbrewr on 2009-04-11 15:14:41 EDT ---

ACPI client is a small command-line program that attempts to replicate the functionality of the 'old' apm command on ACPI systems. It includes battery and thermal information.

ACPI is not the correct component for this issue.  Reassigning.

--- Additional comment from zprikryl on 2009-04-16 02:13:38 EDT ---

It seems to me that this is kernel stuff. Reassigning.

--- Additional comment from fedora-triage-list on 2009-11-18 04:59:24 EDT ---


This message is a reminder that Fedora 10 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 10.  It is Fedora's policy to close all
bug reports from releases that are no longer maintained.  At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
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Package Maintainer: If you wish for this bug to remain open because you
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to a later Fedora version prior to Fedora 10's end of life.

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--- Additional comment from fedora-triage-list on 2009-12-18 04:14:26 EDT ---


Fedora 10 changed to end-of-life (EOL) status on 2009-12-17. Fedora 10 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.

Comment 1 phoenixx 2010-01-25 08:31:12 UTC
The same problem with Sony Vaio FW41MR.
Ubuntu script for FW2X,3X,4X series: http://vaioubuntu.wordpress.com/2009/05/28/quick-brightness-guide-for-jaunty/

Comment 2 phoenixx 2010-01-26 13:35:03 UTC
Tried to build Fedora's kernel with patched DSDT from link above and brightness control now works!

Comment 3 Pavel Alexeev 2010-03-13 22:39:23 UTC
Same problem on Acer Aspire 5740
https://bugzilla.redhat.com/show_bug.cgi?id=539961#c9

Comment 4 Bug Zapper 2010-11-04 02:57:42 UTC
This message is a reminder that Fedora 12 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 12.  It is Fedora's policy to close all
bug reports from releases that are no longer maintained.  At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '12'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version prior to Fedora 12's end of life.

Bug Reporter: Thank you for reporting this issue and we are sorry that 
we may not be able to fix it before Fedora 12 is end of life.  If you 
would still like to see this bug fixed and are able to reproduce it 
against a later version of Fedora please change the 'version' of this 
bug to the applicable version.  If you are unable to change the version, 
please add a comment here and someone will do it for you.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events.  Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

The process we are following is described here: 
http://fedoraproject.org/wiki/BugZappers/HouseKeeping

Comment 5 Bug Zapper 2010-12-04 01:27:16 UTC
Fedora 12 changed to end-of-life (EOL) status on 2010-12-02. Fedora 12 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.