Backlight keyboard stopped working after updating to snow leopard

Hi I have a late 2008 macbook pro. When I got the laptop it had 10.5.8 on it and the keyboard backlight was working fine. I dimmed it all the way down to save battery life. Later on I installed 10.6.2 then did an update to 10.6.5. I don't know where it stopped working allong the way but the keyboard backlight no longer works.
I can turn it up using the f keys. It will increase and decrease. There is not a circle with a line through it like I have read that other users have had when their backlight is not working properly.
I can increase it and decrease it. The light never comes on. I have installed that program that lets you control the backlight by putting it in the taskbar, that doesnt fix it. I called apple and reset the SMC by taking the battery out and holding the power button down for 5 seconds then putting the battery back in and turning it back on. That did not fix it. I also asked if there was some preference files that we could throw away to maybe reset it. We tossed about 5 files and that didnt fix it - sorry I cant remember the files. I did a fresh install of snow leopard but i didnt go past the "would you like to bring back your files" part of the install.
Can someone help me? The caps lock button lights up. I dont know if that matters. Please help me fix the backlight on my keyboard. I really dont want to install 10.5.8 again just to see if the light comes back on or not. Is there a bug in snow leopard that messes up my macbook? help!

maybe its fried ? could be just bad luck when you were doing the update ?
Ridiculous!
To the OP:
I'd recommend doing a SMC reset, if that doesn't take care of it do a PRAM reset. The instructions are:
_SMC RESET_
• Shut down the computer.
• Unplug the computer's power cord and all peripherals.
• Press and hold the power button for 5 seconds.
• Release the power button.
• Attach the computers power cable.
• Press the power button to turn on the computer.
_PRAM RESET_
• Shut down the computer.
• Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
• Turn on the computer.
• Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
• Hold the keys down until the computer restarts and you hear the startup sound for the second time.
• Release the keys.

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@ least turned if off for troubleshooting purposes.
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+At 01/02/2010 12:21 AM we wrote -+
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Still cannot get the GCC printer to work or discover its IP address. Printer's Configuration page says
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When I download the Drivers from GCC Web Site I only get a Text Document with loads of meaningless
gibberish. There is nothing to unstuff and install.
All worked well with OS 10.5.
Thanks for shedding any light.
John L.
Thanks,
John

Hello John,
At this stage you will not be able to get this to print until the printer has a valid IP address. According to your post, the IP address setting is enabled but the actual IP address is unknown. This is most likely a result of the GCC being set to DHCP but if there is no DHCP server or router capable of assigning the printer an IP address, then it will not get a valid address.
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I've gone for hours through all kinds of forums without finding a proper answer, so here I am.
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[SOLVED] Keyboard stopped working after update

Greetings,
after my most recent update (I now update infrequently, so I had quite a bunch of packets to update) I experienced my keyboard refraining from working in any way under my desktop environment (KDEmod legacy) - switching to console, the keyboard works again.
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[2009-02-18 13:47] upgraded xkeyboard-config (1.5-1 -> 1.4-2)
[2009-02-18 13:47] upgraded xf86-input-keyboard (1.3.2-1 -> 1.3.1-1)
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// EDIT
Solution: xorg-server was amongst the IgnorePkg list as in pacman.conf - updating xorg-server together with xf86-input-keyboard, input devices work like charms again.
Last edited by chaosgeisterchen (2009-02-20 01:34:00)

ise wrote:
The new xorg server introduces some new handling of the input devices. Have a look here:
http://wiki.archlinux.org/index.php/Xor … otplugging
And here is the news announcement:
http://www.archlinux.org/news/424/
Daniel
Thank you for your contribution. I tried my best to configure my input devices conform to the new XOrg hotplugging, but I have to say that the problem persisted.
Step 0:
Updating all packages (again). Conclusion: Not working.
Step 1:
Copying the keyboard configurations from /usr/share to /etc for persistent use by HAL. Conclusion: Not working.
Step 2:
Commenting out the lines referring to the static declaration of input devices within /etc/X11/xorg.conf. Conclusion: Not working.
Step 3:
Adding the command to disable the hotplugging (Option "AutoAddDevices" "False") on bottom of my xorg.conf. Conclusion: Not working.
Step 4:
Downgrading: xf86-input-keyboard (1.3.2-1 -> 1.3.1-1) Conclusion: Working again.
Guessing by the fact that more than one person posted in this thread, this problem seems not to be limited to my specific configuration (which is rather basic, a basic keyboard and a basic mouse, both using USB). For now, the 'solution' is adding xf86-input-keyboard to the IgnorePkg list of pacman.conf - or is there any known workaround?
I would be glad to be informed about wrongs in the steps I have taken.
Thanks for your information in advance,
regards,
cg
// EDIT
Problem resolved. The solution was stunningly obvious - after having run into problems with the upgrade lately, xorg-server was on the IgnorePkg list as well and defaulted to 1.4.2.2, which would not work well together with the input hotplugging. After having solved the problem with XOrg and updating all the packages again, I can happily use my keyboard again. Sorry for all the hassle!
Last edited by chaosgeisterchen (2009-02-20 01:32:52)

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Backlight keyboard stopped working after updating to snow leopard

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