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Hi all!
I have a problem with adjusting my laptop brightness, using fn+up and fn+down keys (dell vostro 1520). It is hard to explain, but it works kind a laggy - for example, i hit fn+up 2 times, but brightness increses by 3 levels etc. It happens so both in tty and gnome. I dual boot with win7, there all works fine, so i guess it not hw issue.
I did some investigation and found out that when i hit fn+up (or fn+down), there are 4 events released -> press;release;press;release (used showkey tool). All other keys work ok, even fn+<KEY> (except fn+up and fn+down ofc). I also noticed, that when i unload (rmmod) `video` module, fn+up and fn+down hits issues correct number of events. But then brigtness control dont work (@gnome that little window pops up, but nothing really changes, dir /sys/devices/virtual/backlight also dissapears).
Any ideas how to solve this issue?
Tnx!
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$ lsmod
Module Size Used by
video 17979 0
ipv6 283303 10
michael_mic 2018 4
arc4 1354 2
ecb 1953 2
fuse 58757 2
ppdev 5910 0
vmnet 45025 13
parport_pc 31260 0
parport 29923 2 ppdev,parport_pc
vmblock 11534 1
vsock 40509 0
vmci 54879 1 vsock
vmmon 72629 0
nls_utf8 1256 1
ntfs 196364 1
reiserfs 225754 1
btusb 11532 0
bluetooth 50361 1 btusb
snd_seq_dummy 1439 0
snd_seq_oss 29023 0
snd_seq_midi_event 5316 1 snd_seq_oss
snd_seq 50558 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
joydev 9800 0
snd_hda_codec_idt 50700 1
snd_seq_device 5181 3 snd_seq_dummy,snd_seq_oss,snd_seq
usbhid 38311 0
hid 75845 1 usbhid
uvcvideo 59906 0
videodev 35771 1 uvcvideo
v4l1_compat 15674 2 uvcvideo,videodev
v4l2_compat_ioctl32 9937 1 videodev
snd_pcm_oss 39011 0
snd_mixer_oss 17299 1 snd_pcm_oss
snd_hda_intel 21810 3
sdhci_pci 5942 0
sdhci 16001 1 sdhci_pci
snd_hda_codec 63659 2 snd_hda_codec_idt,snd_hda_intel
snd_hwdep 6340 1 snd_hda_codec
dell_laptop 2289 0
mmc_core 51600 1 sdhci
snd_pcm 70318 3 snd_pcm_oss,snd_hda_intel,snd_hda_codec
snd_timer 18799 2 snd_seq,snd_pcm
rfkill 15228 2 bluetooth,dell_laptop
firewire_ohci 23569 0
firewire_core 43019 1 firewire_ohci
crc_itu_t 1273 1 firewire_core
ac 3027 0
uhci_hcd 21556 0
led_class 2577 1 sdhci
psmouse 57028 0
nvidia 9515743 45
battery 9388 0
i2c_i801 8422 0
iTCO_wdt 9093 0
iTCO_vendor_support 1841 1 iTCO_wdt
snd 57408 17 snd_seq_oss,snd_seq,snd_hda_codec_idt,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
soundcore 6063 1 snd
snd_page_alloc 7033 2 snd_hda_intel,snd_pcm
ehci_hcd 35050 0
r8169 36182 0
mii 3738 1 r8169
output 1980 1 video
usbcore 140485 6 btusb,usbhid,uvcvideo,uhci_hcd,ehci_hcd
i2c_core 18137 3 videodev,nvidia,i2c_i801
intel_agp 26757 0
button 4714 0
sg 25275 0
dcdbas 5656 1 dell_laptop
thermal 11834 0
evdev 8825 24
processor 30278 2
serio_raw 4440 0
wl 1263882 0
lib80211_crypt_tkip 8357 0
lib80211 3878 2 wl,lib80211_crypt_tkip
rtc_cmos 8904 0
rtc_core 14631 1 rtc_cmos
rtc_lib 1810 1 rtc_core
ext3 125021 2
jbd 46334 1 ext3
mbcache 5466 1 ext3
uvesafb 21610 1
cn 5171 2 uvesafb
sr_mod 15043 0
sd_mod 26313 6
cdrom 36354 1 sr_mod
ahci 34897 5
libata 152308 1 ahci
scsi_mod 92676 4 sg,sr_mod,sd_mod,libata
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