Bug 675295 - Brightness unchangeable on Asus G53J
Brightness unchangeable on Asus G53J
Product: Fedora
Classification: Fedora
Component: kernel-module-thinkpad (Show other bugs)
x86_64 Linux
unspecified Severity unspecified
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Assigned To: Jason Carpenter
Fedora Extras Quality Assurance
Depends On:
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Reported: 2011-02-04 14:51 EST by bruno.leiber
Modified: 2012-08-16 09:31 EDT (History)
1 user (show)

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Fixed In Version:
Doc Type: Bug Fix
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Clone Of:
Last Closed: 2012-08-16 09:31:13 EDT
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Description bruno.leiber 2011-02-04 14:51:09 EST
Description of problem:
Using nvidia driver, with a GTX460m. This laptop is the not-so-high grade G53J, with the screen : 1356x768@15.6''
On a fresh installation of FC14 with KDE, brightness controls works ( both fn keys and power manager appears as working, and everything seems okay in /sys/class/backlight/acpi_video0/ and /proc/acpi/video/GFX0/LCDD/, the values are okay and change accordingly).
However, in reality, brightness is stuck at approximately 75% of max luminosity, and will not change.
I also added the following section in /etc/X11/xorg.conf.d/00-system-setup-keyboard.conf :

Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
Option "RegistryDwords" "EnableBrightnessControl=1"

Before, when trying to increase brightness over approximately 75% resulted in the brightness moving back on forth around this value without being able to exceed it (on "paper", the brightness was also stuck in reality).

I found this bug : https://bugzilla.redhat.com/show_bug.cgi?id=646322

However, I cannot load thinkpad_acpi.

su -c 'modprobe thinkpad_acpi'
FATAL: Error inserting thinkpad_acpi (/lib/modules/ No such device

su -c 'modprobe thinkpad_acpi force_load=true'
FATAL: Error inserting thinkpad_acpi (/lib/modules/ Invalid argument

Version-Release number of selected component (if applicable):
nvidia driver version : 260.19.29
kernel :

How reproducible:

Steps to Reproduce:
1.Install FC14 on the same laptop.
Actual results:
Brightness cannot be changed.

Expected results:
Brightness can be changed.

Additional info:
Comment 1 Fedora End Of Life 2012-08-16 09:31:15 EDT
This message is a notice that Fedora 14 is now at end of life. Fedora 
has stopped maintaining and issuing updates for Fedora 14. It is 
Fedora's policy to close all bug reports from releases that are no 
longer maintained.  At this time, all open bugs with a Fedora 'version'
of '14' have been closed as WONTFIX.

(Please note: Our normal process is to give advanced warning of this 
occurring, but we forgot to do that. A thousand apologies.)

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