Software :: Brightness Slider And Function Keys Not Working
Apr 30, 2005
The issue is with the brightness keys and the brightness slider controls. It appears that after the 10.4 upgrade the main LCD on some PBs and iBooks stops working. In my case the attached screen lost the ability to adjust brightness, but my external 20" LCD is fine. It looks like two things have happened. The association between the keys (F1 and F2) and the code for controlling brightness somehow got disconnected and/or the "capability" of the mac to adjust the brightness of the attached LCD got lost in the upgrade. We've tried repair permissions, rebooting, new users to no avail.
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Mar 21, 2012
I have a 2011 (?) macbook air and ever since my trip to the genius bar for a battery issue my function keys don't work after I wake it up (just opening screen). May also be related to last firmware update?
I have checked the function key mapping in settings and they are normal. The volume key launches Expose and the brightness keys (and others) don't do anything. A reboot helps but only untill the first time I put it to sleep (close/open lid).
Info:
MacBook Air, Mac OS X (10.7.3)
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Mar 12, 2008
I cannot control my screen brightness using the F5 and F8 keys. The only way I can adjust it is through System Preferences. I tried just F5 fn F5, Control F5, Option F5 and Command F5 and non work.
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Aug 21, 2010
When I wake my Mac up from sleep, and attempt to change the brightness using the function keys, I see the brightness "image" pop-up on the screen, but when I try to lower it, the brightness doesn't change. The boxes quickly go down, but instantly go right back up to the original brightness. Running Mac OS X 10.6.4
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Feb 4, 2008
A few minutes ago I noticed that my MBA's keyboard was not lighting up as it's supposed to. A little experimenting and I found the solution (you may kick yourself, this is so simple):
The F5 key decreases keyboard brightness.
The F6 key increases keyboard brightness.
The icons on these two keys are the clue.
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Mar 19, 2012
Following on from my recent post regarding the new apple wired keyboard after very helpful feedback from people who responded to my post I decided to take the leap and purchase it! Good news is that I am really happy with it and am glad that I got it! Much nicer then old apple keyboard that I was using.
I also downloaded spark v. 2.1.1 which has enabled me to change the functions of Fkeys to enable to play, pause, etc... in itunes in accordance with the keyboard layout. However, there are two functions that I am having difficulty assigning which are the F1 and F2 keys which allow the decrease and increase of screen brightness. So that I can control my screen brightness using these keys.
Info:
G4 POWERMAC (1.25GHZ), Mac OS X (10.3.9)
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Jun 19, 2009
I have a 24" LED Cinema Display and can no longer control the brightness settings in OSX I believe when I applied the recent java/bluetooth updates the slider disappeared upon reboot. I did some searching and can't come up with a way to get it back. I'm using a 15" Unibody MBP, and the brightness slider for that screen is available and does work. I also tried setting the keyboard shortcuts on my main keyboard (external) to turn up/down the brightness but they won't function at all.
I have tried zapping the PRAM, repairing permissions, and disconnecting/reconnecting the display, as well as booting with no external display and nothing has made the slider reappear. I also logged-in as a different user and the slider is not there for the Cinema on that profile either. I really, really hope I don't have to reinstall OSX to get rid of this but I'm out of ideas. The worst of it is that I turned down the brightness to less than half (when it worked) becuase I had a headache and now it's stuck there!
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Nov 19, 2009
I have just realised that the Brightness slider in Display Prefs on my Mac Pro is missing. Running SL 10.6.2 with an Apple 24inch ACD connected.
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Sep 12, 2009
I have a MBP with an apple wireless keyboard. The keyboard has brightness keys on it but they have recently stopped working. It is strange as the keys on the MBP still work but the ones on the bluetooth keyboard, placed exactly in the same spot (the wireless KB and the Macbook pro's KB are exactly the same), don't.
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Jun 27, 2012
Simple as that. Any idea how I turned this off by accident?
Info:
MacBook
Pro, Mac OS X (10.7.4)
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Jun 2, 2008
I have a Mac os x with the Windows vista partition. I downloaded Realplayer to view some videos on both the windows and mac side. When I did the latter I realized that this was the problem; all my function keys stopped working, I cannot control volume, eject, brightness, anything. I have uninstalled Realplayer from the Windows partition and the problem persists. I have tried to look into the systems folder and drivers, but I really don't know what I am doing and I don't want to make it worse.
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Jun 23, 2012
I just bought a new wireless keyboard to use with my iMac. My function keys at the top of the keyboard are not working and when I try and fix them in system preferences, I am unable to. There is no option to get the rewind, play/pause, fastforward, mute, volume down or volume up to work.
Info:
PowerPoint, Mac OS X (10.5.8)
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Apr 19, 2012
I just purchased a new wired keyboard for imac and brightness and volume control keys not working . i have tried adjusting keyboard settings. I have software version 10.5.8. Do I need to upgrade software.
Info:iMac, Mac OS X (10.5.8)
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Aug 21, 2014
Really stumped by this. Recently (I think it was after a MacOS update but I'm not sure) my brightness and volume keys stopped working on my 2011 13" MacBook Air running MacOS 10.9.4. The F keys still work i.e. if I press Fn-F10, I get the expected effect from pressing F10, but if I just press F10, volume remains unchanged (should get muted). Mission Control, Launchpad, and media keys (rewind, play/pause, ff) all work.
Using Karabiner, I checked to make sure the keys generate correct events. They do. Pressing the brightness keys generates 0x3 and 0x2. Pressing the volume keys generates 0x7, 0x1, and 0x0, which are the expected key codes defined in ev_keymap.h, the header file for HID. I can also adjust volume and brightness using the sliders in the appropriate section of "System Preferences."
So volume and brightness itself can be changed. They keyboard keys themselves work and produce correct keycodes. But whatever operating system feature (HID?) that is supposed to read the keyboard input and translate it into commands to the display and sound drivers doesn't work.
I've tried all the obvious stuff (restart, safe mode, toggle the Function key option in System Preferences->Keyboard). I've reset SMC and PRAM. Nothing has worked so far.
The only other thing I can think of is that a while back (before this problem started occuring) I got annoyed by the power button in the top-right corner of the keyboard, which I would occasionally hit accidentally. I searched for a way to disable it, and I think I found something -- now it only does something if it's held for 2 seconds. A quick up-down strike does not do anything. Perhaps in tweaking some setting to achieve this behavior (I don't remember what I did), I screwed up something with the brightness/volume keys, but this screw up only became evident later.
Info:
MacBook Air, OS X Mavericks (10.9.4)
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Aug 31, 2009
Today I received a bluetooth Razr mouse in the mail today and went to connect the device as I would any other. Well when I was playing music in iTunes, the function keys to skip, pause, and every other function key does not work. The volume keys move my windows and pull up widgets. I dont know if the mouse has anything to do with it, but I imagine it doesn't because I disconnected it and the problem remains.
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Jun 21, 2014
The volume and other function keys aren't working as they used to. The brightness key doesn't do anything and the volume key isn't working either. I've tried to fix it on system preferences but it didn't work. They're not set to be used like normal function keys. I don't know what is happening they were working fine.
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Aug 24, 2014
I was listening to music one day and went to pause the music using the Play/Pause (F8) key. I pressed the key and nothing happened. The forward skip and back skip keys also do not work with iTunes or any other program. I've tried resetting the key settings and restoring my Macbook Pro to a time when i remembered them working.
Info:
MacBook Pro (13-inch Mid 2012), OS X Mavericks (10.9.1)
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Sep 1, 2014
The top row of keys on my keyboard are not working i.e. sound buttons do not adjust sound, same with brightness etc. They make a sound when pushed but the functions arent working. I have booted in safe mode and reset sound cache, I have check all settings in the keyboard section of system preferences.
Info:
MacBook Air, OS X Mavericks (10.9.4)
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Sep 11, 2007
I just bought a 2.4 MBP model a1260. When I got home i noticed the volume keys were not working, and then i noticed none of the function keys were working properly. (example, f12 shows an eject CD symbol). So, the keys are working but not doing the standard functions such as volume and brightness. I have check and unchecked (and restarted) the "use all f1, f2 as standard function keys" to no result.Some other wierd things that seem to be related are:
1. In the SOUND window in SYS PREFS all sound effects are greyed out. Under OUTPUT and INPUT it says no devices found.
2. When i go to the itunes store in itunes and i double click on a song, it wont play. Not only is there no volume, but song wont play. Its the same with my own music from my cds.
3. When i insert a DVD no volume control shows up.
And the last superwierd thing (haha) is that I reloaded leopard and when the computer restarted up after install there was no OSX music that normally plays as the video flys thru the starfield.
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Sep 15, 2009
I just installed Windows 7 on my Windows partition and everything works fine (video, audio, etc.) except when I try to control the sound from my keyboard with F10, F11 and F12....nothing happens.
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Dec 11, 2014
Just recently the music control keys (the function keys 7-9) aren't working, all the other function keys work. The music control keys do not work even if I am in iTunes or if I set it to use function keys as standard function keys then try to fn use it. I just updated to Yosemite on Tuesday, I have turned my computer off twice since then and I restarted it today. I have a Macbook pro with retina.
Info:
MacBook Pro with Retina display, OS X Yosemite (10.10.1)
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Jun 5, 2008
I've got a new 15" mbp that tonight I drove out with to the apple store. It was unable to mount external devices (iPods, external hd's, etc). The Genius ended up doing an archive install, saying that the mounting disks were running full throttle (making it EXTREMELY hot) but not succeeding; something in the OS had gotten stuck. So I left after he did an archive and install and tested my drive and iPod. Everything was working....I thought. Long drive back home. Open up my computer, try to adjust screen brightness...nothing. Try to adjust volume. Nothing. None of the function keys work. The eject button works, and strangely enough, the F12 button which should raise the volume also tries to eject. The pause button brings up the spaces window (showing all four spaces).
Very frustrated, could use some advice. Do I need to do an erase and install? These keys worked fine before the archive/install.
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Apr 14, 2009
I just bought a 2.4 MBP model a1260. When I got home i noticed the volume keys were not working, and then i noticed none of the function keys were working properly. (example, f12 shows an eject CD symbol). So, the keys are working but not doing the standard functions such as volume and brightness.
I have check and unchecked (and restarted) the "use all f1, f2 as standard function keys" to no result.
Some other wierd things that seem to be related are:
1. In the SOUND window in SYS PREFS all sound effects are greyed out. Under OUTPUT and INPUT it says no devices found.
2. When i go to the itunes store in itunes and i double click on a song, it wont play. Not only is there no volume, but song wont play. Its the same with my own music from my cds.
3. When i insert a DVD no volume control shows up.
And the last superwierd thing (haha) is that I reloaded leopard and when the computer restarted up after install there was no OSX music that normally plays as the video flys thru the starfield.
Headphones have no audio either.Sorry so long. The computer has no warranty of course.
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Apr 16, 2012
my keyboard function keys just stopped working
Info:
iMac, Windows Vista
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May 27, 2010
It appears that the function keys to control iTunes/Quicktime (FF, Play/Pause, and RW) are not working. At one point they did but now it doesn't. All the other function keys are functioning just fine and dandy. I have the "Use F1, F2, etc. keys as standard function keys" unchecked in the preferences. I looked around and there doesn't seem to be any setting that would explain the sudden malfunctioning of the keys. Is there something I may have missed?
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Nov 11, 2009
I am using a Samsung monitor so therefore cannot control th screen brightness with the F1 F2 keys.
I tried Shades but it messes with the colour making it look a little washed out and not good.
Are there any others I could try ?
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Feb 26, 2012
I'm having a custom keyboard connected to my mac, but I want to change the brightness keys to my preferences. I can't seem to find them though.where I have to change it?
Info:
MacBook Pro, Mac OS X (10.7.3)
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Aug 31, 2007
I'm switching from a PC to a Mac. I have a PC utility called "My Function Keys" that allows me to "program" the function keys to do a combination of keystrokes. For example, I can set up F9 to do a copy and F10 to do a paste, so I don't have to do the Ctrl-C and Ctrl-V, or I can set up F2 to type my address, etc. Is there a similar utility for the Mac? I did find some information at this link: [URL]. Which states: iBook: How Programmable Function Keys Work. This article describes the programmable function key operation for iBook and the PowerBook (FireWire) computers. The programmable function keys were created to help simplify common, everyday tasks performed on the computer.
You can use these keys to open a browser, an email application, or any other frequently used application or server by pressing a single key. To set up a programmable function key, open the Keyboard control panel. Or, if the keys have not been programmed yet, simply pressing one of them brings up a dialog box that leads you to the Keyboard control panel. Apple has preprogrammed F1 through F6 with such common control functions as screen brightness, speaker volume, and so on. F7 through F12 can be programmed for your personal choices. To help you identify what the function keys were programmed to do, Apple includes with iBook a variety of durable stickers with preselected icons. Once the keys are programmed, you can select the stickers that will best remind you of the assigned functions.
Note: The stickers should not be placed on the keycap itself, rather above them on the iBook case. To remove the sticker, use a fingernail or other non-abrasive tool to remove them and avoid scratching the plastics. The function keys F1 through F12 can be easily reset to have primary functionality. Simply open the Keyboard control panel and select Options. Then check the box that says Use F1 through F12 as Function keys. Note: Programmable function keys are not a feature of Mac OS X 10.0. So, it appears the iBook will do what I'm looking for, but not the iMac!
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Mar 21, 2009
How do I lock the function keys to be on versus having to hit the "fn" key then the function key I want?
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Jul 6, 2012
I'm trying to set the function keys F16-F19 on my keyboard. They do not have any icons on them so how do I designate them?
Info:iMac, Mac OS X (10.7.2)
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