Brightness and volume keys not working after switch to Yosemite

Once Yosemite was installed, the brightness (F1, F2) and volume (F10, F11, F12) keys on my macbook pro stopped working. I have already checked the System Pref>Keyboard and unchecked the "standard function" box, done an SMC and PRAM reset, to no avail. My sound in and out are both set to built-in. Any suggestions?

Try:
- Reset the iOS device. Nothing will be lost
Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Reset all settings
Go to Settings > General > Reset and tap Reset All Settings.
All your preferences and settings are reset. Information (such as contacts and calendars) and media (such as songs and videos) aren’t affected.
- Restore from backup. See:
iOS: How to back up
- Restore to factory settings/new iOS device.
- Make an appointment at the Genius Bar of an Apple store.
Apple Retail Store - Genius Bar
When iOS 6.1 comes out I would update.

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Try:
- Reset the iOS device. Nothing will be lost
Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Reset all settings
Go to Settings > General > Reset and tap Reset All Settings.
All your preferences and settings are reset. Information (such as contacts and calendars) and media (such as songs and videos) aren’t affected.
- Restore from backup. See:
iOS: How to back up
- Restore to factory settings/new iOS device.
- Make an appointment at the Genius Bar of an Apple store.
Apple Retail Store - Genius Bar
When iOS 6.1 comes out I would update.

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I ve 15r-260ne modle hp laptop.. i resently got it .. but the brightness and contrast key is not working ... i cant make the screen bright and dim ..

Hi Please find the ink given below might help you to fix your issue. http://support.hp.com/in-en/document/c00832191

Windows 7 Brightness and Function key not Working Properly

i have HP 15-af024AU APU Quad Core A8-7410 - (4 GB DDR3,1 TB HDD) Noteboook and it came with windows 8.1 preinstalled than i installed windows 7 ultimate.
i have problem in Display Brightness i am not able to change Brightness by function key or by manually from windows settings.
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Sorry that driver didn't work. You can try this graphics driver and if that doesn't work, unfortunately, I won't be able to help you with that issue. This package provides the AMD High-Definition (HD) Graphics Driver and Catalyst Control Center for supported notebook models that are running a supported operating system. For notebooks with switchable graphics modes, this package includes drivers for both graphics processing units (GPUs). Switchable graphics enable users to switch between a power-saving graphics mode (normally used under battery power) and a high-performance graphics mode. If high-definition multimedia interface (HDMI) video output is supported, this package also installs the HDMI Audio Driver. File name: sp71253.exe As far as the Fn keys being 'flipped,' I have no idea what you mean by that, or what to do about it. Did you install the software that controls the funtion keys? This package contains the HP System Event Utility, which enables special function keys on supported notebook models to be programmed. For example, HP System Event Utility enables users to press the Fn+ESC keys to view system information. This software works with the supported operating systems. File name: sp71156.exe

Dimmer and volume keys not working on keyboard

I went to up my volume from the f5 key on my keyboard and it didn't work. I tried to dim and lighten the screen and that too didn't work. Any suggestions on how to resolve this situation?

Did you check your Keyboard Shortcut settings in Sys. preferences, Keyboard & Mouse perhaps something is off there.
*Your Question being marked as solved does not seem accurate, since you still have the issue with these 2 items.Hope this explains how to mark your Question / Topic Answers, Helpful and Solved
Eme;~[)

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Just after installing sametine Note version 9 the voliume key stopped working. I have a volume logo showing an interdiction under the logo. I tried to dopwnload an Apple fix for LED cinema display but the nessage said my computer does not need it. Any solution

This thread should help:
https://discussions.apple.com/message/19407500#19407500?ac_cid=tw123456#19407500

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Hi, Pls help
Today I have install Yosemite on my macbook pro 2011 late, First time macbook on, everything is OK. but after install some application and then restart, suddenly trackpad gesture is not working.
I have try the following to fix this problem but still no solution..
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3. Killall dock
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Some keybaord keys not working after suspect virus on Tecra A

Apostrophe, delete, semicolon and end keys not working after a suspected virus attack. I found record of the same problem on the net but apparently this guy fixed his problem after he found scroll lock or num lock on.
This is not the case here but there is something going on with numlock - register shows 2 and not 0. change to 0 but when reboot back to 2 again.
Suspect changed back by bios. I thought i couldnt get to bios because DEL key not working but found ESC works.
Tried to reset default values for bios but then cannot save and exit as this required the END key to work.
I was running XP at the time of the (suspected) attack and could not rectify the problem so put the computer back to the OEM status which i hoped would help - it did not, same problem so rather than install all the software on the computer again with XP i upgraded to Windows7 - fresh install.
Still keys do not work - it was a real pain to start with as my computer was set up to ctl+alt+del to log in and i had to do this with on screen keyboard - XP - this also showed that numlock was on before and after windows boot.
The reason i suspect a virus - my wife was watching one of her tv shows on line from home country (another toshiba laptop) and i needed to use that laptop for something else so i asked her to use mine - later on we turned the laptops off and in the morning turned tham back on again, the other laptop with AVG virus protection flagged several hits and this one with (FAMOUS and completely up to date) Norton flagged nothing - once i got into it using on screen keyboard.
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Thanks Xardas,
I have essentially done both - tried Toshiba OEM status found on a small partition of the toshi hard drive - no good - then did a fresh install of Windows 7 - still no good
You know - as cunning as it sounds - i cannot reload the default settings in BIOS as it requires the END key to work so i can Save & Exit - all i can do is Exit Without Save - i sort of feel snookered at the moment.
Toshiba got back to me today and said that i have tried everything they would have (yeah for sure) and to take my machine into a service centre for a hardware check - yeah right on boys!
Check out this guys post below found on Kioskea.net - getting close to a year ago...
ms ml - Nov 10, 2009 12:52am GMT
Hi there, I was hoping that you might be able to help me with the problem that I seem to be having with my Toshiba Satellite Laptop Keyboard too. For a few days now I havent been able to use a few of the keys on my keyboard, including (1) delete (the backspace key is still working though), (2) colon/semicolon, (3) apostrophe/quotation marks and (4) end (the home and PgUp and PgDn keys are still working though). Any suggestions?
Identical to my problem....obviously this guy had the same problem as well...see below - same thread.
yab - Feb 9, 2010 4:47am GMT
hi did you ever figure this out? i have the same exact problem...
However, i was not able to solve my problem the way this guy did - my scroll lock is not activated - it seems to work ok (on and off) i tested it using Excel to move around the cells.
yab ms ml - Feb 9, 2010 7:57am GMT
Nevermind. For me it was scroll lock. My apostrophe, semicolon, and delete keys are alive and working again. I hope you have the same easy fix.
Incidently - never hear from the first guy again - probably ended up being his scroll lock.
all sugestions welcome - sorry my smily face has no eyes -) guess why!

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Brightness and volume keys not working after switch to Yosemite

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