MacBook Pro - Can't adjust screen brightness via keyboard

MacJenny · MacJenny #1 (**permalink**)

04-03-2009, 12:16 PM

Last night, my MBP was fine, but today I can't seem to adjust the screen brightness via the hotkey; I can still adjust it in Systems Preferences though. When I press the key, it gives me the "no" symbol. I googled this issue, but couldn't turn anything up. Thoughts?

MacJenny · MacJenny #2 (**permalink**)

04-03-2009, 01:19 PM

New development: my volume keys and everything else WERE working fine, but now, none of them work except F12...which is bringing up my dashboard. What the heck?

MacJenny · MacJenny #3 (**permalink**)

04-03-2009, 01:42 PM

Okay, after 4 or 5 reboots, it seems to have resolved itself. Weird.

D3v1L80Y · D3v1L80Y #4 (**permalink**)

04-03-2009, 02:01 PM

You can adjust this by either checking or unchecking the box here:

System Preferences -> Keyboard & Mouse -> Keyboard -> "Use the F1-F12 keys to control software features"

MacJenny · MacJenny #5 (**permalink**)

04-03-2009, 03:45 PM

I actually had that unchecked, and F12 was still bringing me my dashboard and not sound. I was all over Systems Preferences, trying to see if it was a change I made, but everything was the same. It was definitely weird.

MacJenny #1 (permalink)
Member Since: Jan 30, 2009 Location: DC Metro Posts: 98 Mac Specs: 15" Aluminum unibody MBP, Intel core duo 2.4GHz proc, 4MB DDR3 RAM,	04-03-2009, 12:16 PM Last night, my MBP was fine, but today I can't seem to adjust the screen brightness via the hotkey; I can still adjust it in Systems Preferences though. When I press the key, it gives me the "no" symbol. I googled this issue, but couldn't turn anything up. Thoughts? 15" aluminum unibody MacBook Pro, 32gb White iPhone 3GS, 160gb iPod
	QUOTE Thanks

MacJenny #2 (permalink)
Member Since: Jan 30, 2009 Location: DC Metro Posts: 98 Mac Specs: 15" Aluminum unibody MBP, Intel core duo 2.4GHz proc, 4MB DDR3 RAM,	04-03-2009, 01:19 PM New development: my volume keys and everything else WERE working fine, but now, none of them work except F12...which is bringing up my dashboard. What the heck? 15" aluminum unibody MacBook Pro, 32gb White iPhone 3GS, 160gb iPod
	QUOTE Thanks

D3v1L80Y #4 (permalink)
Member Since: Feb 02, 2004 Location: PA Posts: 12,455 Mac Specs: MacBook	04-03-2009, 02:01 PM You can adjust this by either checking or unchecking the box here: System Preferences -> Keyboard & Mouse -> Keyboard -> "Use the F1-F12 keys to control software features" __________________________________________________ Posting and YOU\|Forum Community Guidelines\|The Apple Product Cycle\|Forum Courtesy mac: a waterproof raincoat made of rubberized fabric MAC: a data communication protocol sub-layer, also known as the Media Access Control Mac: a brand name which covers several lines of personal computers designed, developed, and marketed by Apple Inc.
	QUOTE Thanks

MacJenny #5 (permalink)
Member Since: Jan 30, 2009 Location: DC Metro Posts: 98 Mac Specs: 15" Aluminum unibody MBP, Intel core duo 2.4GHz proc, 4MB DDR3 RAM,	04-03-2009, 03:45 PM I actually had that unchecked, and F12 was still bringing me my dashboard and not sound. I was all over Systems Preferences, trying to see if it was a change I made, but everything was the same. It was definitely weird. 15" aluminum unibody MacBook Pro, 32gb White iPhone 3GS, 160gb iPod
	QUOTE Thanks

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MacBook Pro - Can't adjust screen brightness via keyboard

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