Comment 22 for bug 304940

I have purchased an Acer Aspire AS-3810T 354G32N and installed Centos (presently 5.4). I already have an Acer TravelMate C112TCI with the same Centos installation.

In none of the two computers do the Fn-direction keyboard keys RIGHT and LEFT work. Those are the ones that set screen brightness. On the 3810T that is a serious problem due to the extremely bright screen that Linux is showing.

I am writing from the 3810T and these are my kernel brightness documented scripts and uname outputs:

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[root@aspire scripts]# chmod 755 *brightness
[root@aspire scripts]# ./*get-bright*
org.freedesktop.Hal.Device.UnknownError
Missing or empty environment variable(s).
This script should be started by hald.
[root@aspire scripts]# cd linux
[root@aspire linux]# ls
hal-luks-remove-linux hal-system-power-hibernate-linux
hal-luks-setup-linux hal-system-power-reboot-linux
hal-luks-teardown-linux hal-system-power-set-power-save-linux
hal-system-lcd-get-brightness-linux hal-system-power-shutdown-linux
hal-system-lcd-set-brightness-linux hal-system-power-suspend-linux
[root@aspire linux]# ./*get-bright*
org.freedesktop.Hal.Device.LaptopPanel.NotSupported
No ACPI method found
[root@aspire linux]#
[root@aspire linux]# uname -a
Linux aspire.workgroup 2.6.18-164.6.1.el5.centos.plusPAE #1 SMP Wed Nov 4 10:17:55 EST 2009 i686 i686 i386 GNU/Linux
[root@aspire linux]#

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Thanks for your help