i have problems with brightness in hp pavilion dv1000 intel's graphic card

[punkmexic]

can somebody help me fixing brightness on arch linux?

[root@myhost punk]# lspci
00:00.0 Host bridge: Intel Corporation Mobile 915GM/PM/GMS/910GML Express Processor to DRAM Controller (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #3 (rev 03)
00:1d.3 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #4 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB2 EHCI Controller (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev d3)
00:1e.2 Multimedia audio controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) AC'97 Audio Controller (rev 03)
00:1e.3 Modem: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) AC'97 Modem Controller (rev 03)
00:1f.0 ISA bridge: Intel Corporation 82801FBM (ICH6M) LPC Interface Bridge (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) IDE Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) SMBus Controller (rev 03)

[root@myhost punk]# lsmod
Module                  Size  Used by
fuse                   51934  3 
arc4                    1062  2 
ecb                     1549  2 
lib80211_crypt_wep      2534  1 
ext2                   55291  1 
snd_seq_dummy           1071  0 
snd_seq_oss            25016  0 
snd_seq_midi_event      4488  1 snd_seq_oss
snd_seq                41656  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device          4353  3 snd_seq_dummy,snd_seq_oss,snd_seq
snd_intel8x0           22204  5 
snd_intel8x0m           9327  0 
snd_ac97_codec         87773  2 snd_intel8x0,snd_intel8x0m
ac97_bus                 754  1 snd_ac97_codec
snd_pcm_oss            33474  0 
pcmcia                 32806  0 
joydev                  7503  0 
snd_pcm                58556  5 snd_intel8x0,snd_intel8x0m,snd_ac97_codec,snd_pcm_oss
snd_mixer_oss          14328  1 snd_pcm_oss
ipw2200               127121  0 
libipw                 22775  1 ipw2200
cfg80211              121416  2 ipw2200,libipw
8139too                17760  0 
snd_timer              15601  3 snd_seq,snd_pcm
yenta_socket           19390  0 
firewire_ohci          19621  0 
sdhci_pci               5598  0 
tifm_7xx1               3518  0 
sdhci                  13963  1 sdhci_pci
mmc_core               46834  1 sdhci
hp_wmi                  4488  0 
snd                    42602  18 snd_seq_oss,snd_seq,snd_seq_device,snd_intel8x0,snd_intel8x0m,snd_ac97_codec,snd_pcm_oss,snd_pcm,snd_mixer_oss,snd_timer
cpufreq_ondemand        6546  1 
8139cp                 15691  0 
uhci_hcd               19248  0 
rsrc_nonstatic          8736  1 yenta_socket
soundcore               5017  1 snd
rfkill                 12394  2 cfg80211,hp_wmi
firewire_core          38894  1 firewire_ohci
psmouse                50897  0 
iTCO_wdt                8637  0 
ehci_hcd               31488  0 
wmi                     5065  1 hp_wmi
battery                 7775  0 
crc_itu_t               1045  1 firewire_core
led_class               1835  1 sdhci
tifm_core               3737  1 tifm_7xx1
ac                      2321  0 
pcmcia_core            10656  3 pcmcia,yenta_socket,rsrc_nonstatic
mii                     3190  2 8139too,8139cp
iTCO_vendor_support     1457  1 iTCO_wdt
lib80211                3150  3 lib80211_crypt_wep,ipw2200,libipw
acpi_cpufreq            5643  0 
serio_raw               3526  0 
snd_page_alloc          5941  3 snd_intel8x0,snd_intel8x0m,snd_pcm
pcspkr                  1351  0 
sg                     20760  0 
usbcore               120630  3 uhci_hcd,ehci_hcd
evdev                   6780  15 
thermal                 9746  0 
i2c_i801                7126  0 
freq_table              1991  2 cpufreq_ondemand,acpi_cpufreq
processor              25232  2 acpi_cpufreq
tpm_tis                 6268  0 
tpm                     9689  1 tpm_tis
tpm_bios                4557  1 tpm
rtc_cmos                7578  0 
rtc_core               11823  1 rtc_cmos
rtc_lib                 1486  1 rtc_core
ext4                  298739  3 
mbcache                 4282  2 ext2,ext4
jbd2                   63017  1 ext4
crc16                   1045  1 ext4
sr_mod                 13129  0 
cdrom                  31337  1 sr_mod
sd_mod                 25507  5 
ata_piix               17951  4 
pata_acpi               2300  0 
ata_generic             2175  0 
libata                138807  3 ata_piix,pata_acpi,ata_generic
scsi_mod               79372  4 sg,sr_mod,sd_mod,libata
i915                  261263  2 
drm_kms_helper         21512  1 i915
drm                   131562  3 i915,drm_kms_helper
i2c_algo_bit            4319  1 i915
button                  3738  1 i915
i2c_core               15144  5 i2c_i801,i915,drm_kms_helper,drm,i2c_algo_bit
video                  15613  1 i915
output                  1440  1 video
intel_agp              23794  2 i915
agpgart                23120  2 drm,intel_agp

punk@myhost video]$ tree 
.
└── GFX0
    ├── DD01
    │   ├── brightness
    │   ├── EDID
    │   ├── info
    │   └── state
    ├── DD02
    │   ├── brightness
    │   ├── EDID
    │   ├── info
    │   └── state
    ├── DD03
    │   ├── brightness
    │   ├── EDID
    │   ├── info
    │   └── state
    ├── DD04
    │   ├── brightness
    │   ├── EDID
    │   ├── info
    │   └── state
    ├── DD05
    │   ├── brightness
    │   ├── EDID
    │   ├── info
    │   └── state
    ├── DOS
    ├── info
    ├── POST
    ├── POST_info
    └── ROM

6 directories, 25 files