Red Hat Bugzilla – Bug 675295
Brightness unchangeable on Asus G53J
Last modified: 2012-08-16 09:31:15 EDT
Description of problem:
Using nvidia driver, with a GTX460m. This laptop is the not-so-high grade G53J, with the screen : email@example.com''
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 :
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/184.108.40.206-74.fc14.x86_64/kernel/drivers/platform/x86/thinkpad_acpi.ko): No such device
su -c 'modprobe thinkpad_acpi force_load=true'
FATAL: Error inserting thinkpad_acpi (/lib/modules/220.127.116.11-74.fc14.x86_64/kernel/drivers/platform/x86/thinkpad_acpi.ko): Invalid argument
Version-Release number of selected component (if applicable):
nvidia driver version : 260.19.29
kernel : 18.104.22.168-74.fc14.x86_64
Steps to Reproduce:
1.Install FC14 on the same laptop.
Brightness cannot be changed.
Brightness can be changed.
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