Arch Linux

rapkasta

Member

Registered: 2009-10-19

Posts: 9

Failed to switch the brightness / Acer Aspire 5715Z

//sorry for my English
All time I've used arch, there is problem with brightness manage: it works only after update kernel, after second boot brightness want work and in log i see:

Oct 29 17:17:59 acerAspire kernel: ACPI: Failed to switch the brightness

after all trying to change brightness.

I try to use acpi_backlight=vendor and it doesn't help me.
As I see, it's strange problem, because of after update kernel, all work fines. But after second boot there are problems....

Also, i update Bios and it "repair" my fan ( http://bbs.archlinux.org/viewtopic.php?id=82703 ).

Some info:

[root@acerAspire Downloads]# cat /etc/rc.conf |egrep -v '#'

LOCALE="ru_RU.utf8"
HARDWARECLOCK="UTC"
USEDIRECTISA="no"
TIMEZONE="Asia/Yekaterinburg"
KEYMAP="ru-mab"
CONSOLEFONT="cyr-sun16"
CONSOLEMAP=
USECOLOR="yes"

MOD_AUTOLOAD="yes"
MODULES=(ath5k acpi-cpufreq !ath_hal !ath_pci !snd_pcsp mac80211 !compat-wireless acerhk !acer_wmi)

USELVM="no"

HOSTNAME="acerAspire"

eth0="dhcp"
wlan0="wlan0 up"
INTERFACES=(!eth0 !wlan0 !br0)

gateway="default gw 192.168.0.1"
ROUTES=(!gateway)

NETWORKS=(main)

DAEMONS=(syslog-ng !avahi-daemon hal networkmanager fam @network cpufreq !oss @laptop-mode @netfs @crond @httpd @mysqld pulseaudio !esd !alsa !915resolution)

[root@acerAspire Downloads]# uname -a
Linux acerAspire 2.6.31-ARCH #1 SMP PREEMPT Fri Oct 23 11:12:58 CEST 2009 i686 Intel(R) Pentium(R) Dual CPU T2310 @ 1.46GHz GenuineIntel GNU/Linux

Last edited by rapkasta (2009-10-29 12:26:48)

rapkasta

Member

Registered: 2009-10-19

Posts: 9

Re: Failed to switch the brightness / Acer Aspire 5715Z

And one addon: i can change brightness by close and open laptop, may be it did bios, i don't know

Raws

Member

From: Campo Grande - Brazil

Registered: 2009-08-19

Posts: 47

Re: Failed to switch the brightness / Acer Aspire 5715Z

hello all!

I have a similar problem with a similar machine.

I use an acer aspire 5738-6922 (T6400, 3GB ram, 4500MHD, centrino).

My brightness control works on gnome and windows, but not on KDE, KDEMod. I find the same messages on the log.

Any clues?