Hi, It sounds to me more like a hardware issue than a software issue. Those things are usually related but when taking everything you said/did, it sounds more like a hardware issue to me as it regained proper functionality after a Shutdown/Startup. I would reset the PRAM though just to lear any software glitches stuck there. If you're not familiar how to do this, simply restart your Mac and when the startup chime sounds, hold down the cmd key, the option key, the "r" key and the "p" key simultaneously. Yes, it's a awkward combination but what I do is hold down the cmd-option with my left thumb and then the "r" with my left index finger and the "p" with my right pinky. When you hold this down as the startup chime sounds, the screen will do some funny things then the startup chime will sound again. Let the chime sound an extra three times past the initial one and then let go of them all. Things should then startup normally.
Let me know if it continues and I'll give you a few other suggestions to help determine whether it's Lion or hardware. Later… On 2011-07-28, at 1:26 AM, Shen wrote: > So I came home today and thought I do some things on my MacBook Pro, > such as checking email and browse the internet. > The Mac booted up, I logged in, everything works fine except my volume > controls, F11 and F12 don't work. I checked everything and confirmed > that everything on my keyboard works. Even Fn plus F11 and F12 work > just fine. I thought perhaps it's my BlueTooth keyboard acting up. > Keep in mind this never happened with Snow Leopard. > I reached over to the built-in keyboard in my MacBook Pro. No dice! > F11 and F12 just refuse to work. > OK, I thought perhaps the machine needs a restart. Even though it has > just been booted up after being off the entire day. I'll give it the > benefit of the doubt. > I restarted my machine, got to the log in window, provided my > credentials, and logged in. After reaching the Desktop, I tried the > volume keys again. Still, they didn't work. This was the most puzzling > thing to me. Of all the things not to work, it's the volume controls. > I was able to use VO-M to open the status menu and check the system > volume. According to the status menu, the System volume is set to > 100-percent. I know it's not because it would distort my speakers. I > tried using the arrow keys to adjust the volume in the status menu. It > wouldn't budge. It stayed at 100-percent. Is that weird or not? > OK, this time, I decided to give it the cold restart, turning it > completely off, then on. > After restarting a second time, my volume controls came back. > Before any of you question me whether I have a functioning keyboard or > not, let me end this message by tell ing you that this has never > happened before when I was running Snow Leopard. And come to think of > it, a similar incident happened last week, a couple of days after > installing Lion. But since I was in the process of rebooting,I didn't > bother to stop and investigate. That time, everything did not work > except for the volume buttons. After restarting, everything came back > to normal so I didn't think much of it. > > So has anyone experienced this before? > Does anyone have any guesses whether this is just a glitch in Lion, > having upgraded from Snow Leopard? Will a clean install of Lion get > rid of these little annoyances? > > > > -- > Shen > [email protected] > > -- > You received this message because you are subscribed to the Google Groups > "MacVisionaries" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/macvisionaries?hl=en. > Tim Kilburn Fort McMurray, AB Canada -- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/macvisionaries?hl=en.
