Comment 16 for bug 145337

This is weird.

(Running Dell Inspiron 6400 with Intel 945GM graphics card)

When logging in with KDE (this is important) If I listen to "acpi_listen" or "lshal -m" everything seems to be working... except for the actual brightness which does NOT change. I have these processes running:

 ~ % ps axf | grep hal
 5043 ? Ss 0:00 /usr/sbin/hald
 5044 ? S 0:00 \_ hald-runner
 5114 ? S 0:00 \_ hald-addon-keyboard: listening on /dev/input/event1
 5117 ? S 0:00 \_ /usr/lib/hal/hald-addon-cpufreq
 5118 ? S 0:00 \_ hald-addon-acpi: listening on acpid socket /var/run/acpid.socket
 5119 ? S 0:00 \_ hald-addon-keyboard: listening on /dev/input/event4
 5120 ? S 0:00 \_ hald-addon-keyboard: listening on /dev/input/event5
 5121 ? S 0:00 \_ hald-addon-keyboard: listening on /dev/input/event6
 5187 ? S 0:00 \_ hald-addon-storage: polling /dev/scd0 (every 2 sec)
 7630 pts/2 S+ 0:00 | \_ grep --ignore-case --color=auto --extended-regexp hal
 6361 pts/4 S+ 0:00 \_ lshal -m

If I start a new session with GNOME. The very same acpi/HAL events are generated, and now they do work; and what is worse, if I return to my (still open) KDE session, now the brightness keys also DO work. However I don't have any difference in the ACPI/HAL logs nor in the HAL processes running.

Can anybody how can I track this further?

Kind regards