Using F1, F2 as brightness control

I need to enable the "Use all F1, F2 as standard function Keys" option in system preference because I run an Application that requires F6 for a function.
However I miss using F1 and F2 as brightness controls so I set those as shortcuts in the shortcuts page.
Whever I push those buttons, they just give me a screen flash as if they are not assinged, please help!
I know I can always use Cmd+F1/F2 to enable the special function but it would be useful to be able to assign the shortcut myself.

Update: I went to the Apple Store to find out the current gen rMBP does not have this option in it's System Preference pane. Not sure if thats the reason the shortcut is not available. I'm using late 2012 iMac on the current 10.9.2 release. The quck fix is to install the 3rd party "FunctionFlip" pref addon.

Similar Messages

Using exposure vs brightness controls

I am trying to understand the fundamental differences between using the exposure or brightness controls. I watch the histogram change with each, but remain unsure which areas of the image are being affected. I could use some directon. which tool to use for what condition... etc...
thank you,
jeff

b Exposure
Sets the overall image brightness, with a greater effect in the high values.
b Brightness
Adjusts image brightness, mainly affecting midtones.

ASUS UL30VT - Brightness Control

Hello,
my Asus UL30VT is running Arch pretty nice and cool while the graphics card is turned off (nvidia_g210m_acpi).
I read a couple of article here on this message board that it is possible to bind the brightness control to some keys. However, since I am quite a Noob I don't know how I apply this on my machine.
Maybe you can help me?
For example here: https://bbs.archlinux.org/viewtopic.php … 86#p818186 it is describes how to do it. But I am not able to follow it.
I am using XFCE4 and the brightness control keys of my laptop just result in this little popup-window showing the increase and decrease of brightness. But this has no actual effect on the brightness. How do I manage to make it really work?
Thank you very much for your brief explanation so I can do it!

What you need to do is install the acpid daemon.
sudo pacman -S acpid
Then make sure that your brightness keys are the same as mine
sudo rc.d start acpid
acpi_listen
*press the brightness keys*
hotkey ATKD 00000026 0000000a
hotkey ATKD 00000017 0000000b
Then you need to make some acpi scripts
sudo nano /etc/acpi/events/brnup
event=hotkey ATKD 0000002[0123456789abcdef]
action=/usr/bin/brightness up
sudo nano /etc/acpi/events/brndown
event=hotkey ATKD 0000001[0123456789abcdef]
action=/usr/bin/brightness down
Now all that's left is to make the brightness script in /usr/bin/brightness
sudo nano /usr/bin/brightness
#!/bin/bash
export SEED=2
if [ ! -f ~/.brightness ]; then
echo 99 > ~/.brightness;
fi
export BRIGHTNESS=`cat ~/.brightness`
case "$1" in
"up")
export BRIGHTNESS=$[$BRIGHTNESS+$SEED];
"down")
export BRIGHTNESS=$[$BRIGHTNESS-$SEED];
export BRIGHTNESS=1;
esac
if [ "$BRIGHTNESS" -gt "99" ]; then
export BRIGHTNESS=99;
fi
if [ "$BRIGHTNESS" -gt "0" ]; then
echo $BRIGHTNESS > ~/.brightness
setpci -s 00:02.0 F4.B=$BRIGHTNESS
fi
if [ "$BRIGHTNESS" -lt "0" ]; then
echo "This makes your screen off";
fi
chmod +x /usr/bin/brightness
reload the acpid daemon
sudo rc.d restart acpid
you should be good to go
as a side note if the brightness dialogue is coming up your nvidia card is probably stilll on

Does the new ipad use pulse width modulation to control the brightness of the display?

Does the new ipad use pulse width modulation to control the brightness of the display? I have photophobia and migraines and am unable to use displays that use this technology due to it triggering a headache.

You'll have to go to an Apple Store and view the screen to see if it's OK for you. If a store is not convenient, buy one from Apple online and check it out. You have 14 days to return it for a full refund, no questions asked.

My screen gets dim and the brightness control buttons don't work

My screen is frequently dim. The brightness control buttons display that they are working, but the brightness doesn't actually change. Any ideas why and what I can do?

Thanks for the suggestion. Actually, I had tried that but still had to go into preferences any time I wanted it brighter. After I posted, I found a thread using some different keywords and found that people were having the same problem with OS versions up to 10.7.2 but solved it with the latest update (10.7.3). I just installed it and now seem to be able to adjust the brightness with my keyboard no problem. I appreciate your reply anyway!

Satellite C650-I5011 - Brightness control is not working

Hi,
I have a Toshiba C650 - I5011 model with Ubuntu 10.3 . I have a problem that even after pressing the Fn + F6 key, the brightness of my LCD does'nt change.
It remains at maximum.
I have installed both Toshutils and hotkey daemon. My volume control key (on numeric alternate) works perfectly fine but none of the Function keys work. Pls help.
Also, I had errors during installation of Ubuntu on my laptop because of which I had to permanently disable ACPI, else it won't boot. Following is the lspci output :
00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 02)
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02)
00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06)
00:1a.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05)
00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 05)
00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 05)
00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 05)
00:1d.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a5)
00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 4 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 05)
00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 05)
01:00.0 Ethernet controller: Atheros Communications AR8152 v1.1 Fast Ethernet (rev c1)
02:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)

Hello,
The backlight detection depends from acpi options selection on your kernel. Which kernel version do you use ?
$ uname -a
(Use at least a 2.6.36 kernel since a lot of improvement for recent Toshiba laptop have been done during summer 2010)
This done, ACPI options beeing compiled into kernel or loaded as module, this line should appear in your /var/log/Xorg.0.log :
"found backlight control interface /sys/class/backlight/acpi_video0"
Having a C650-15Z, my brightness control works well.
regards,
alex

Windows 7 home premium 64 bit , no brightness control.

My OS is Windows 7 home premium 64 bit. I have a brand new Lenovo "desktop" pc with AMD quad core processor with integrated ATI graphics, 6 gig of memory . I cannot find anyway to adjust the brightness via Windows . The monitor itself is all the way up and the pictures are still too dark specially on the tv tuner card. I did not have this issue with the monitor on my old IBM with Win ME in it . The display was plenty bright on that setup and did not have to have the brightness all the way up and the tv card in that looked great.
The new setup has the latest drivers . I have looked under the power settings and there is no slider bar for brightness adjustment in there. Anyone got any ideas to try ?

you can adjust the relative brightness using the integrated ATI graphics control panel setting.
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

Windows 8.1 update and brightness control

I have a DELL XPS L521X with Windows 8.1 (I had windows 8 some days ago) and I have had two problems:
1) I did not allow Windows to upgrade to 8.1 and it forced me to do it. It gave me 15 minutes to save progress and do it. I was watching the NBA finals on my computer and it was the only thing I had to watch the game. The installation lasted the whole second
half the game and I WAS NOT ABLE TO WATCH IT DUE TO THIS, YOU CAN IMAGINE HOW I AM FEELING ABOUT NOT USING WINDOWS EVER AGAIN... How can I prevent it from ever upgrading anything without my consent? I had already turned off updates from Control Panel\System
and Security\Windows Update but it didn't help.
2) My brightness control became broken after the 8.1 update. I had to manually pick the older Intel HD 4000 driver to have it working again or else my eyes would stop functioning after such a bright display. I had to switch to the 9.17 driver version from
September 2012. Where can I get the lastest WORKING version of the driver?
Please stop making me loose days fixing Windows issues...

Hi,
We have set the GP to disable Windows 8.1 update in Windows store, you can check it here:
How to Disable “Update to Windows 8.1 for Free” Notification in Windows 8 Store?
http://www.askvg.com/how-to-disable-update-to-windows-8-1-for-free-notification-in-windows-8-store/
For your second issue, it's not only related to Windows, but also the driver provider. Microsoft is working together with the device manufacturers and partners to deliver update package and try the best to solve the compatible issue and bring a great improvement
on user experience. But you know, it will take some time.
Thanks for your understanding.
Kate Li
TechNet Community Support

Brightness control not working in Windows 8 x64 after sleep with Boot Camp 5.0.2

Hi,
I am using Boot Camp 5.0.2 with Windows 8 x64.
Wheen the computer has been in sleep mode, and wakes up again, the brightness control won't work as expected.
Usually the screen is to dark (darker than before, what it should be), and after some time pops up brighter as it should be.
Has onyone else seen this issue?
I mean, it seems that for brightness we use the internal control GUI of Windows 8, and not the Apple one that is used in Windows 7 and in Windows 8 for the sound control.
Macbook Pro 13" Retina, early 2013 (brand new) with 8GB RAM and 512GB SSD and 3.0GHz i7.

I have been having the issue of no brighness control when running windows through bootcamp for about 6 months now and have not found any applicable solution online.
While messing around trying to figure it out yet again I noticed that my monitor driver was signed by team viewer...
Sure enough clicking the roll driver back button resolved the issue by rolling the driver back to the Microsoft driver...
So long story short:
Right click "My Computer" click properties
Click device manager (lop left of window)
Expand Monitors section
Double Click monitor
Click driver tab
If the driver here is not signed by Microsot or Apple click the roll back button. My driver version is 6.1.7600.16385 (Driver date 6/21/2006)
Rolling this back instantly resolved my issue. I will now propagate this post to all the threads I saw regarding this issue.
I am running windows 7 x64 Ulti on a 15" rMBP.
Best of luck

No screen brightness control on an envy 17

I had some maleware that was removed and it broke the Catalyst Control Center, I only has the Intel 300 HD to view the screen from.
I used the 14-4-mobility-win7-win8-win8.1-64-dd-ccc-whql from 3D GuRu
and,
win64_152822 intel hd 3000 from the intel site.
I have the popup omn the screen from the keyboard shortcut, but nothing haoppens. its on full brightness.
Left click the battery icon in the tray and there is a place for 'Adjust Screen Brightness'. It takes me to a page 'Select A Power Plan' where it SHOULD be but doesn't show up. If I select 'Change Plan Settings' it is there but has no effect. its all still full bright.
It was working fine until the malware.
Did sfc /scannow, nothing to report.
Any ideas on this?
FJW
Envy 17-3090NR 3D NON drivers
14-4-mobility-win7-win8-win8.1-64-dd-ccc-whql
win64_152822 intel hd 3000

Hi @fjward ,
Thank you for visiting the HP Support Forums and Welcome. I have looked into your issue HP ENVY 17-3090nr 3D Edition Notebook PC and issues with brightness control and the Catalyst Control Center. I would uninstall any graphic drivers that are listed and CCC software, restart the computer, then reinstall only the AMD. It will include the Amd Graphics Driver and Catalyst Control Center restart the computer.
Here is a link to the HP Support Assistant if you need it. Just download and run the application and it will help with the software and drivers on your system.
You can do a system restore. System restore will help if something automatically updated and did not go well on the Notebook.
When performing a System restore please note remove any and all USB devices. Disconnect all non-essential devices as they can cause issues.
Please let me know how this goes.
Thanks.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom to say “Thanks” for helping!

[Solved]Brightness control doesn`t work anymore

Hi!
I`ve made my 3rd update of Arch since installation, and... where previous two succeeded, the third one failed. It messed up my system
The problem is, i cannot change brightness any more through my function keys (and since i`m using Openbox as my DE, i cannot change it at all ). The brightness now is so low that i can barely see what i am typing. And it is not only in my Arch, it also messed up Windows and everything else: grub, bootup screen where i can select bios properties - everything. I ran xev and now i see that FN+Right/Left are not detected anymore as brightness keys. It says:
FocusOut event, serial 32, synthetic NO, window 0x3200001,
mode NotifyGrab, detail NotifyAncestor
FocusIn event, serial 32, synthetic NO, window 0x3200001,
mode NotifyUngrab, detail NotifyAncestor
KeymapNotify event, serial 32, synthetic NO, window 0x0,
keys: 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
However, FN + Win + Right/Left are now detected as brightness control function keys
KeyRelease event, serial 35, synthetic NO, window 0x3200001,
root 0x13c, subw 0x0, time 521221, (348,-43), root:(1219,884),
state 0x40, keycode 233 (keysym 0x1008ff02, XF86MonBrightnessUp), same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False
But pressing them doesn`t work either. I thought that it was xfce4-power-manager problem, but changing to gnome-power-manager didn`t help either.During the update pacman also upgraded kernel to latest version.
Any ideas?
P.S. My notebook is Acer Aspire 7720g with Nvidia 8600M GT. I tried solutions from this topic: http://bbs.archlinux.org/viewtopic.php?id=73889 but none worked for me... The problem is that the system is completely unusable at this point, since i barely see anything on the monitor, and that sucks
Last edited by K0tuk (2009-06-27 08:02:56)

I can't see what you did in Arch affecting your windows installation at all. If you try to boot into windows and increase the brightness (since most laptops store the brightness level of the laptop as it was set, on battery, at least my 2 laptops do), does the new brightness level "stick" for all things? If so, the only issue you have is to re-map the function keys properly, and to configure a script or something to increase/decrease lcd brightness. You can make a simple script that echoes a value into your /proc/acpi/video/LCD/brightness file (the file path will vary, so it may be under UVGA or so). If, however, it doesn't increase again, it may very well be a hardware issue, and not a software (since, as I said above, it's highly unlikely that an Arch update has affected Windows in any way).
Last edited by lswest (2009-06-26 12:28:04)

20" Cinema dispaly, brightness control w/ PC

I have just purchased the 20" Cinema display to use with a PC. It works and looks great, however the brightness controls and on/off buttons don't work. I read there is a setting to access using Apple Preferences, however I can't figure out using a PC how to ajust or get the buttons to function.
Any help would be greatly appreciated
Thanks very much
Tim

Here you go
This works perfect
http://sourceforge.net/projects/winacd
Mark

Brightness control problem after returning from Stand By - T500

Hi,
I have a Lenovo ThinkPad T500 under Windows XP SP2.
In Power Manager, I have created a custom power management scheme and set the brightness to 80%. This works fine when I boot up the machine, but when I return from Stand By mode (sleep) the machine automatically sets the brightness to 100%. I will then have to use to brightness control buttons to set it back to 80%. This is very annoying and obviously a bug.
I have the latest BIOS and Power Manager version installed.
Can someone offer a solution please?

I found your post after searching as I hae the exact problem you describe - I turn off the screen using Fn F3 and later when I wake the display the brightness jumps to 100% and I cannot get it to turn down to any level. It's stuck at 100%. Yup, just tried closing-n-opening the lid the screen goes to my previously set brightness level.
my drivers are current as at 2010-03-26 (today)
Running a downgraded XP W500 model...
a bug for sure!
Rick
W500 4058-CTO WinXP

10.4.9 removes Brightness Control from System Preferences?!

Has anyone else noticed that the Intel 10.4.9 update has removed Brightness Control from their System Prefs?!
maybe it's just mine... seems unlikely!!!

No, mine still has it. Perhaps it no longer thinks you can adjust the brightness. You may try the "standard" repair techniques to see if it will come back: Repair permissions, repair the disk (you must start up from installer DVD or use Safe Mode--which takes a while to boot because it is checking the disk), and then running the combo updater instead of Software Update.
1.8 SP G5/iMac G4 FP/MBP 2.33/PB G3 Pismo Mac OS X (10.4.9) XLR8 G4 Upgrade for Pismo

Display brightness control not in Prefs Pane

I'm using an Apple 23" sinema display. The brightness control used to appear in the System Prefs, but it no longer shows up. I unplugged all peripherals, but I can no longer get the slider to appear. Any thoughts?

Display brightness is done via USB. Is the display's USB cable connected to the computer? With older (plasic case) Apple displays, the USB circuitry can fail. This can cause problems with the brightness slider, USB ports on the display, and computer sleep. Unplugging everything from the display for a few minutes may fix it for a while.

Using F1, F2 as brightness control

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