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I recently installed Xubuntu on an old Sony Vaio laptop. I normally would use the function keys to adjust the screen brightness, but they do not work. I checked the settings menu, but the only option I found was to adjust the brightness of the desktop background. How can I adjust the brightness of the entire screen?
What model of Vaio do you have? Have you tried the acpi_backlight=vendor kernel parameter? For instructions on how to test it, see: https://help.ubuntu.com/community/Gr...nu During Boot
If that doesn't work, open a terminal window (Accessories->Terminal Emulator), type in the following command and post back the results:
Code:lspci -vnn
Hi Toz,
Thank you for your help. The model number is: PCG-7G2L. I added the entry to the grub menu and I still cannot change the brightness via the function keys.
I entered the command and here are the results:
00:00.0 Host bridge [0600]: Intel Corporation Mobile 915GM/PM/GMS/910GML Express Processor to DRAM Controller [8086:2590] (rev 03)
Subsystem: Sony Corporation Vaio VGN-S3XP [104d:81b7]
Flags: bus master, fast devsel, latency 0
Capabilities: <access denied>
Kernel driver in use: agpgart-intel
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller [8086:2592] (rev 03) (prog-if 00 [VGA controller])
Subsystem: Sony Corporation Device [104d:81b8]
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at b0080000 (32-bit, non-prefetchable) [size=512K]
I/O ports at 1800 [size=8]
Memory at c0000000 (32-bit, prefetchable) [size=256M]
Memory at b0040000 (32-bit, non-prefetchable) [size=256K]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: intelfb, i915
00:02.1 Display controller [0380]: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller [8086:2792] (rev 03)
Subsystem: Sony Corporation Device [104d:81b8]
Flags: fast devsel
Memory at 44000000 (32-bit, non-prefetchable) [disabled] [size=512K]
Capabilities: <access denied>
00:1b.0 Audio device [0403]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller [8086:2668] (rev 03)
Subsystem: Sony Corporation Device [104d:81bb]
Flags: bus master, fast devsel, latency 0, IRQ 40
Memory at b0000000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
00:1d.0 USB Controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1 [8086:2658] (rev 03) (prog-if 00 [UHCI])
Subsystem: Sony Corporation Device [104d:81b9]
Flags: bus master, medium devsel, latency 0, IRQ 23
I/O ports at 1820 [size=32]
Kernel driver in use: uhci_hcd
00:1d.1 USB Controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #2 [8086:2659] (rev 03) (prog-if 00 [UHCI])
Subsystem: Sony Corporation Device [104d:81b9]
Flags: bus master, medium devsel, latency 0, IRQ 19
I/O ports at 1840 [size=32]
Kernel driver in use: uhci_hcd
00:1d.2 USB Controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #3 [8086:265a] (rev 03) (prog-if 00 [UHCI])
Subsystem: Sony Corporation Device [104d:81b9]
Flags: bus master, medium devsel, latency 0, IRQ 18
I/O ports at 1860 [size=32]
Kernel driver in use: uhci_hcd
00:1d.3 USB Controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #4 [8086:265b] (rev 03) (prog-if 00 [UHCI])
Subsystem: Sony Corporation Device [104d:81b9]
Flags: bus master, medium devsel, latency 0, IRQ 16
I/O ports at 1880 [size=32]
Kernel driver in use: uhci_hcd
00:1d.7 USB Controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB2 EHCI Controller [8086:265c] (rev 03) (prog-if 20 [EHCI])
Subsystem: Sony Corporation Device [104d:81b9]
Flags: bus master, medium devsel, latency 0, IRQ 23
Memory at b0004000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci_hcd
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev d3) (prog-if 01 [Subtractive decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=06, subordinate=0a, sec-latency=32
I/O behind bridge: 00002000-00002fff
Memory behind bridge: b0100000-b01fffff
Prefetchable memory behind bridge: 0000000040000000-0000000043ffffff
Capabilities: <access denied>
00:1f.0 ISA bridge [0601]: Intel Corporation 82801FBM (ICH6M) LPC Interface Bridge [8086:2641] (rev 03)
Subsystem: Sony Corporation Device [104d:81b9]
Flags: bus master, medium devsel, latency 0
Kernel modules: iTCO_wdt, intel-rng
00:1f.1 IDE interface [0101]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) IDE Controller [8086:266f] (rev 03) (prog-if 8a [Master SecP PriP])
Subsystem: Sony Corporation Device [104d:81b9]
Flags: bus master, medium devsel, latency 0, IRQ 18
I/O ports at 01f0 [size=8]
I/O ports at 03f4 [size=1]
I/O ports at 0170 [size=8]
I/O ports at 0374 [size=1]
I/O ports at 1810 [size=16]
Kernel driver in use: ata_piix
00:1f.3 SMBus [0c05]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) SMBus Controller [8086:266a] (rev 03)
Subsystem: Sony Corporation Device [104d:81b9]
Flags: medium devsel, IRQ 10
I/O ports at 18a0 [size=32]
Kernel modules: i2c-i801
06:03.0 CardBus bridge [0607]: Texas Instruments PCI7420 CardBus Controller [104c:ac8e]
Subsystem: Sony Corporation Device [104d:818f]
Flags: bus master, medium devsel, latency 168, IRQ 16
Memory at b0108000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=06, secondary=07, subordinate=0a, sec-latency=176
Memory window 0: 40000000-43fff000 (prefetchable)
Memory window 1: 48000000-4bfff000
I/O window 0: 00002400-000024ff
I/O window 1: 00002800-000028ff
16-bit legacy interface ports at 0001
Kernel driver in use: yenta_cardbus
Kernel modules: yenta_socket
06:03.2 FireWire (IEEE 1394) [0c00]: Texas Instruments PCI7x20 1394a-2000 OHCI Two-Port PHY/Link-Layer Controller [104c:802e] (prog-if 10 [OHCI])
Subsystem: Sony Corporation Device [104d:818f]
Flags: bus master, medium devsel, latency 32, IRQ 18
Memory at b0104000 (32-bit, non-prefetchable) [size=2K]
Memory at b0100000 (32-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: firewire_ohci
Kernel modules: firewire-ohci
06:03.3 Mass storage controller [0180]: Texas Instruments PCI7420/7620 Combo CardBus, 1394a-2000 OHCI and SD/MS-Pro Controller [104c:ac8f]
Subsystem: Sony Corporation Device [104d:8190]
Flags: bus master, medium devsel, latency 57, IRQ 17
Memory at b0105000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: tifm_7xx1
Kernel modules: tifm_7xx1
06:04.0 Network controller [0280]: Intel Corporation PRO/Wireless 2200BG [Calexico2] Network Connection [8086:4220] (rev 05)
Subsystem: Intel Corporation Device [8086:2751]
Flags: bus master, medium devsel, latency 32, IRQ 22
Memory at b0106000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: ipw2200
Kernel modules: ipw2200
06:08.0 Ethernet controller [0200]: Intel Corporation 82562ET/EZ/GT/GZ - PRO/100 VE (LOM) Ethernet Controller Mobile [8086:1068] (rev 03)
Subsystem: Sony Corporation Device [104d:81d0]
Flags: bus master, medium devsel, latency 66, IRQ 20
Memory at b0107000 (32-bit, non-prefetchable) [size=4K]
I/O ports at 2000 [size=64]
Capabilities: <access denied>
Kernel driver in use: e100
Kernel modules: e100
:confused: I hope this helps. Is there an application that can change the screen brightness?
A few more things to try:
1. Also try the kernel parameters:
2. Try the sony_laptop module:Code:acpi_osi=Linux
acpi_osi=\"Linux\"
acpi_osi=Linux acpi_backlight=vendor
acpi_osi=
3. You have an intel video card. Kamal (a canonical kernel developer) has an intel-specific kernel that fixes the backlight issue with these video cards on some laptops. You may wish to give his kernel a try. See: https://launchpad.net/~kamalmostafa/...l-mjgbacklightCode:sudo modprobe sony_laptop
4. If still no luck, when you press the brightness function keys, do you get a notification bubble indicating that the brightness changed (but the brightness doesn't change)?
5. What do the following commands return?
Code:sudo dmidecode -s system-product-name
Hi Toz,
1. None of the parameters worked.
2. No Luck.
3. According to the page this kernel is only for Gnome or Unity.
4. I don't get any responses when I press the buttons.
5. Here is the return: VGN-FS850
This is strange, as everything else on this laptop works better on Xubuntu, except that the function keys don't work. Could something be blocking them?
It should work for xfce as well (he makes i915-specific changes to the kernel for the intel driver like you have). You won't be able to use the gnome utilities but the Fn keys might work. Could be worth a try.Quote:
Originally Posted by raginkestrel
Does this command do anything:Quote:
4. I don't get any responses when I press the buttons.
5. Here is the return: VGN-FS850
This is strange, as everything else on this laptop works better on Xubuntu, except that the function keys don't work. Could something be blocking them?
Another thing to try is to edit the udev keymap file and add your system (it doesn't look like it processes VGN-FS* systems):Code:sudo setpci -s 00:02.0 F4.B=96
search for:Code:sudo mousepad /lib/udev/rules.d/95-keymap.rules
and replace it with:Quote:
VGN-FW*
reboot and see if there is a difference.Code:VGN-FS*
[QUOTE=Toz;11106390]It should work for xfce as well (he makes i915-specific changes to the kernel for the intel driver like you have). You won't be able to use the gnome utilities but the Fn keys might work. Could be worth a try.
I will give this a try, as editing the keymap file did not work, neither did the "setpci" command.
I will be a little slower on responding during the week, but I have not given up! :)
Hi Toz,
I installed the new kernel, but the function keys still do not work. However, I noticed that the screen is now a little dimmer, and I don't feel like I am staring into the sun every time I look at it. Any other options that you can think of? Otherwise, this current brightness setting is workable.
With the new kernel, try:
- the acpi_backlight=vendor kernel parameter again.
- the setpci command again
Code:sudo setpci -s 00:02.0 F4.B=96
- install xbacklight (sudo apt-get install xbacklight) and try:
Code:xbacklight -set 50
Hi Toz,
:D Success! I can adjust the brightness with xbacklight. Now I can finally say that I have resurrected this poor old laptop from Windows. Plus, I learned a lot about Grub, installing a new kernel, and getting back to using the command line. This was an excellent learning experience. Thank you.
Glad to hear. You can also map your FN brightness keys to adjust the brightness using xbacklight. Let me know if you'd like a script that would do that for you.
Hi Toz,
Absolutely. If I could dim the screen by pressing FN+F5 and brighten it by pressing FN+F6 that would match the keys on my keyboard.
Try this (from a command prompt):
1. Create the script:
2. Paste in this code:Code:gksudo mousepad /usr/local/bin/brightness
3. Save the file.Code:#!/bin/bash
# constants - edit as required
UPPER=100
LOWER=0
INCREMENT=10
DECREMENT=10
# current xbacklight value
CURRENT=`xbacklight -get | sed -e 's/\..*//g'`
NEW=$CURRENT
case $1 in
up)
if [ $(($CURRENT+$INCREMENT)) -le $UPPER ]; then
NEW=$(($CURRENT+$INCREMENT))
fi
;;
down)
if [ $(($CURRENT-$DECREMENT)) -ge $LOWER ]; then
NEW=$(($CURRENT-$DECREMENT))
fi
;;
*)
;;
esac
# set the new backlight
xbacklight -set $NEW
exit 0
4. Make it executable:
5. Test it. From a command prompt, go nuts with the following two commands to see if it changes the brightness:Code:sudo chmod +x /usr/local/bin/brightness
If it works without any problems, go to Settings Manager, Keyboard, Application Shortcuts tab and create shortcuts for your FN+F5 and FN+F6 keys for the commands "brightness up" and "brightness down".Code:brightness up
brightness down
If it doesn't work, post back any error messages that come up.
Hi Toz,
There are no error messages, but nothing happens when I enter the command, "brightness up". However, "brightness down" does work.
I tried to create the keyboard shortcut FN+F5 for the command "brightness down" but the "Shortcut Command" window that pops up when I press the "+Add" button only allows me to enter the command and not the shortcut. Am I missing something? Shouldn't there be a prompt beside "Shortcut:" where I enter the keys? I attached a screenshot, so you can see the window.
The brightness up command will only work if the brightness isn't at the maximum setting. Try brightness down a few times then brightness up. Does it work now?
To set the shortcuts, try the following:
1. Go to the Keyboard Shortcuts
2. Click the Add button and type in brightness up and press OK.
3. On the next screen, press Fn+F5 (or FN+F6) depending on which is the brightness up function key.
4. Repeat for brightness down.
Hi Toz,
I used "brightness down" before using the "up" command. I even set the backlight to 50% and the "up" command still doesn't work.
As for the shortcuts, I discovered that the "Fn" key is not being recognized for some reason. When I set the shortcut to "Ctrl+d" the "brightness down" command works.
I just verified that the script works on my system.
What happens when you type:
followed by:Code:xbacklight -set 50
Can you double-check that the script contents are correct?Code:xbacklight -set 100
EDIT: Also, can you do this:
1. Open a terminal window.
2. Run the command:3. Then press your Brightness up FN key (FN+F6?)Code:acpi_listen
4. Post back what is displayed in the terminal window
5. Then press your Brightness down FN key (FN+F5?)
6. Post back what is displayed in the terminal window
(source: http://code.google.com/p/vaio-f11-li...ogrammableKeys)
Learned a lot！:D
@123662981: You and me both!:)
@Toz: The "50" command dims the screen to 50% and the "100" command brings it back up to full brightness.
The script contents are exactly like you typed them. I copied and pasted them into mousepad.
When I type "acpi_listen", nothing happens when I press Fn+F5 or F6. When I press my shorcut, Ctrl+d, the green cursor blanks out and then returns to normal as the screen dims.
Looks like your system doesn't hear the function keys. Something else that needs to be investigated.
I've updated the script to include debugging info. Can you replace the current brightness script with this:
Then:Code:#!/bin/bash
# constants - edit as required
UPPER=100
LOWER=0
INCREMENT=10
DECREMENT=10
# current xbacklight value
CURRENT=`xbacklight -get | sed -e 's/\..*//g'`
NEW=$CURRENT
case $1 in
up)
echo "DEBUG: up selected"
echo "DEBUG: up->CURRENT="$CURRENT
if [ $(($CURRENT+$INCREMENT)) -le $UPPER ]; then
NEW=$(($CURRENT+$INCREMENT))
fi
echo "DEBUG: up->NEW="$NEW
;;
down)
echo "DEBUG: down selected"
echo "DEBUG: down->CURRENT="$CURRENT
if [ $(($CURRENT-$DECREMENT)) -ge $LOWER ]; then
NEW=$(($CURRENT-$DECREMENT))
fi
echo "DEBUG: down->NEW="$NEW
;;
*)
;;
esac
# set the new backlight
echo "DEBUG: beforeset->current_xbacklight="`xbacklight -get | sed -e 's/\..*//g'`
xbacklight -set $NEW
echo "DEBUG: afterset->current_xbacklight="`xbacklight -get | sed -e 's/\..*//g'`
exit 0
.....post back resultsCode:brightness down
.....post back resultsCode:brightness up
Can you also post back the results of:
Code:lsmod
Just came across this link: http://ubuntuforums.org/showthread.p...ghlight=vgn-fs. I know its a little old, but it might be worth a shot.
Hi Toz,
My numbered function keys do work(eg. F5 in Chromium refreshes the page). It is when I press the "Fn" key and then press the numbered keys that they are ignored.
I set the brightness to 50%. Here is what comes back when I enter the "brightness down" command:
DEBUG: down selected
DEBUG: down->CURRENT=42
DEBUG: down->NEW=32
DEBUG: beforeset->current_xbacklight=42
DEBUG: afterset->current_xbacklight=28
Here is what comes back when I enter the "brightness up" command:
DEBUG: up selected
DEBUG: up->CURRENT=28
DEBUG: up->NEW=38
DEBUG: beforeset->current_xbacklight=28
DEBUG: afterset->current_xbacklight=28 :confused:
Now, I decided to raise the increment from 10 to 20 and...
It works! :D Why, I have no idea. Here is the debug info:
DEBUG: up selected
DEBUG: up->CURRENT=28
DEBUG: up->NEW=48
DEBUG: beforeset->current_xbacklight=28
DEBUG: afterset->current_xbacklight=42
That's good news. Set both the INCREMENT and DECREMENT values to 20. It must be that you have less than 10 backlight settings.
What does lsmod return?
Hi Toz,
Here are the results for lsmod:
I finally discovered the code tags. :)Code:Module Size Used by
xt_limit 12541 8
xt_tcpudp 12531 7
ipt_LOG 12784 8
ipt_MASQUERADE 12663 0
xt_DSCP 12549 0
ipt_REJECT 12512 1
nf_conntrack_irc 13138 0
nf_conntrack_ftp 13106 0
xt_state 12514 6
cryptd 19801 0
aes_i586 16956 2
aes_generic 38023 1 aes_i586
lib80211_crypt_ccmp 12785 2
parport_pc 32111 0
ppdev 12849 0
snd_hda_codec_realtek 255882 1
snd_hda_intel 24140 4
snd_hda_codec 90901 2 snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 13274 1 snd_hda_codec
i915 446502 2
snd_pcm 80042 2 snd_hda_intel,snd_hda_codec
snd_seq_midi 13132 0
ipw2200 145664 0
snd_rawmidi 25269 1 snd_seq_midi
binfmt_misc 13213 1
drm_kms_helper 40745 1 i915
acpi_igd_opregion 13574 1 i915
snd_seq_midi_event 14475 1 snd_seq_midi
libipw 46641 1 ipw2200
snd_seq 51291 2 snd_seq_midi,snd_seq_midi_event
tifm_sd 17415 0
pcmcia 39671 0
drm 180037 4 i915,drm_kms_helper,acpi_igd_opregion
snd_timer 28659 2 snd_pcm,snd_seq
joydev 17322 0
cfg80211 156212 2 ipw2200,libipw
snd_seq_device 14110 3 snd_seq_midi,snd_rawmidi,snd_seq
iptable_nat 12977 0
nf_nat 24827 2 ipt_MASQUERADE,iptable_nat
nf_conntrack_ipv4 19024 9 iptable_nat,nf_nat
tifm_7xx1 12898 0
nf_conntrack 69744 7 ipt_MASQUERADE,nf_conntrack_irc,nf_conntrack_ftp,xt_state,iptable_nat,nf_nat,nf_conntrack_ipv4
sony_laptop 34432 0
nf_defrag_ipv4 12649 1 nf_conntrack_ipv4
iptable_mangle 12615 0
iptable_filter 12706 1
ip_tables 18125 3 iptable_nat,iptable_mangle,iptable_filter
x_tables 21907 11 xt_limit,xt_tcpudp,ipt_LOG,ipt_MASQUERADE,xt_DSCP,ipt_REJECT,xt_state,iptable_nat,iptable_mangle,iptable_filter,ip_tables
snd 55295 17 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
yenta_socket 27230 0
pcmcia_rsrc 18292 1 yenta_socket
tifm_core 15040 2 tifm_sd,tifm_7xx1
psmouse 73312 0
i2c_algo_bit 13184 1 i915
soundcore 12600 1 snd
pcmcia_core 21505 3 pcmcia,yenta_socket,pcmcia_rsrc
video 18951 1 i915
serio_raw 12990 0
lib80211 14570 3 lib80211_crypt_ccmp,ipw2200,libipw
snd_page_alloc 14073 2 snd_hda_intel,snd_pcm
lp 13349 0
parport 36746 3 parport_pc,ppdev,lp
usbhid 41704 0
hid 77084 1 usbhid
firewire_ohci 31504 0
firewire_core 56138 1 firewire_ohci
e100 40108 0
crc_itu_t 12627 1 firewire_core
I was looking to see if the sony_laptop module was running. Looks like it is. It's what makes the function keys work on viaos. For some reason ubuntu is not picking them up. Have you had a chance to try the solution from http://ubuntuforums.org/showthread.p...ghlight=vgn-fs?
I got a weird message from the Software Center when I tried to install the package. It said "This package is of bad quality" and provided the following details:
Code:Lintian check results for /home/david/Desktop/fsfn_2.1-1_i386.deb:
E: fsfn: wrong-file-owner-uid-or-gid debian-binary 1000/1000
E: fsfn: wrong-file-owner-uid-or-gid etc/ 1000/1000
E: fsfn: wrong-file-owner-uid-or-gid etc/fsfn.conf 1000/1000
E: fsfn: wrong-file-owner-uid-or-gid etc/init.d/ 1000/1000
E: fsfn: wrong-file-owner-uid-or-gid etc/init.d/fsfn 1000/1000
E: fsfn: wrong-file-owner-uid-or-gid usr/ 1000/1000
E: fsfn: wrong-file-owner-uid-or-gid usr/local/ 1000/1000
E: fsfn: wrong-file-owner-uid-or-gid usr/local/bin/ 1000/1000
E: fsfn: wrong-file-owner-uid-or-gid usr/local/bin/fsfn 1000/1000
E: fsfn: wrong-file-owner-uid-or-gid usr/local/share/ 1000/1000
E: fsfn: wrong-file-owner-uid-or-gid usr/local/share/man/ 1000/1000
E: fsfn: wrong-file-owner-uid-or-gid usr/local/share/man/man1/ 1000/1000
E: fsfn: wrong-file-owner-uid-or-gid usr/local/share/man/man1/fsfn.1 1000/1000
E: fsfn: wrong-file-owner-uid-or-gid usr/local/share/man/man5/ 1000/1000
E: fsfn: wrong-file-owner-uid-or-gid usr/local/share/man/man5/fsfn.5 1000/1000
I guess not - too old. That package hasn't been updated since then either.
I'm sorry, but I'm out of ideas for getting the Fn keys to work. Perhaps you should create a bug report (like this one: https://bugs.launchpad.net/ubuntu/+s...ux/+bug/691826) and see if you can get a solution there.
Hi Toz,
I am not worried about it. The only keys I needed were the ones to adjust the backlight, and I now have those set to "Ctrl d" and "Crtl u". The other keys, zoom, volume control, sleep, etc., I always control by software; even on my netbook which does have a working Fn key. Thank you for your help. It is a relief being able to look at the screen without sunglasses! :)
Is your numlock enabled (on)? If so, try disabling it then try the function keys on their own.
and, open a terminal window, type in :
then press the function keys with and without the numlock on. Do you get any response on the terminal when you press these keys?Code:acpi_listen
Hi Toz,
I never have "Num Lk" on, as there isn't a separate keypad. Sony basically put a pseudo keypad in the middle of the keyboard which is a pain to use.
There is no response on "acpi_listen" when I press the "Fn" key with or without the "Num Lk" on.
I am not worried about the "Fn" key not working. The only two keys I ever use are the backlight controls and that has been fixed with the keyboard shortcuts.
Ok. I was just curious because I just remembered that on my other notebook, a toshiba, the Fn keys only work if the Numlock is off.
here is a tiny script that I save as "xb" somewhere in my PATH and use like:
xb 10
The arg is from 0 to 100.
Code:#!/bin/bash
#xbacklight -set $1
file="/sys/class/backlight/intel_backlight/brightness"
b="4648"
min="0"
max="4648"
steps="100"
step="$1"
if [[ -z $step ]]
then step=50
fi
b=`calc "int($min + ($max-$min)*$step/$steps + 0.5)"`
#echo $b; exit
echo $b | sudo tee $file >/dev/null
----
it relies on the system's brightness file residing in
/sys/class/backlight/intel_backlight/brightness
to find out - go to /sys/class/backlight and see whats in there...
try seeing if you can find a brightness file in there and see what are the min/max vals in there when you use the fn keys...
Also note : I use the
GRUB_CMDLINE_LINUX_DEFAULT="quiet nosplash acpi_backlight=vendor"
line in my
/etc/default/grub file
you put this acpi_backlight=vendor in there and then sudo update-grub
and reboot...