MacBook display brightness will not adjust

My MacBook display brightness is very low level, the F1 and F2 brightness keys bring up the transparent window and show brightness turned all the way down, but F2 does not increase the brightness. In Preferences, the display section shows the Brightness slider all the way to the top, and if I attempt to slide that down it snaps back to the top, and the actual screen brightness does not change from very low. I also have verified that the function keys are NOT set to lock out the brightness function, so pressing command and F1/F2 does nothing. So nothing from previous forums seems to apply! All other function keys operate properly (multi-window, volume, dashboard).

OK guys, think I found a solution to this one.
My girlfriend's mac had the same problem as yours, and I was motivated to fix it becuase I needed to use my mac for my dissertation and she kept stealing it!
anyway, turn the brightness all the way down, press it up once and you will see the screen flash. do it again, really fast up and down up and down and the scree will stay on as long as you keep playing with the buttons.
next, use this temporary fix to get into system preferences -> displays... and change the resolution to something considerably lower. then it stays on permanently. Not too sure about why this happens, maybe the mac can no longer handle that many colours or complexities?
sod it. enjoy.

Similar Messages

  • My imac g5 display preference will not stay bright after bootup.

    My imac g5 display preference will not stay bright after bootup.
    Precessor 1.8 PPC G5
    2gb ddr sdram
    osx 10.5.8

    cwc wrote:
    My imac g5 display preference will not stay bright after bootup.
    Welcome to Apple's discussion groups.
    I'll presume that you can adjust the brightness after bootup. If that display preference is kept in PRAM, it's possible that the PRAM battery is wearing out.
    Here's what Apple says about what's stored in PRAM:
    http://support.apple.com/kb/HT1242
    To test that possibility, turn off "Set date and time automatically" in the Date & Time panel of System Preferences (if it's set), shut down and unplug your Mac, then let it sit for a few minutes. When you reboot it, check the system date and time. If the PRAM battery is failing, those may be set incorrectly.
    iFixit describes replacing the PRAM battery of an iMac G5 as of "moderate" difficulty. See these pages:
    http://www.ifixit.com/Browse/iMac_G5

  • My iPad Mini with retina display suddenly will not connect to the Internet. It shows full wifi bars, yet no web pages will load. My Internet is working with all other apple devices in my house. The iPad also no longer works with celluar data.

    My iPad Mini with retina display suddenly will not connect to the Internet. It shows full wifi bars, yet no web pages will load. My Internet is working with all other apple devices in my house. The iPad also no longer works with celluar data. I'm not sure what has happened. It was working fine a few hours ago. I have tried resetting it, ive restarted my browser etc. I tried to erase all data from my Ipad but I can't do that because it needs to sign into my Apple ID and use the Internet!

    Some things to try first:
    1. Turn Off your iPad. Then turn Off (disconnect power cord for 30 seconds or longer) the wireless router & then back On. Now boot your iPad. Hopefully it will see the WiFi.
    2. Go to Settings>Wi-Fi and turn Off. Then while at Settings>Wi-Fi, turn back On and chose a Network.
    3. Change the channel on your wireless router (Auto or Channel 6 is best). Instructions at http://macintoshhowto.com/advanced/how-to-get-a-good-range-on-your-wireless-netw ork.html
    4. Go into your router security settings and change from WEP to WPA with AES.
    5.  Renew IP Address: (especially if you are drooping internet connection)
        •    Launch Settings app
        •    Tap on Wi-Fi
        •    Tap on the blue arrow of the Wi-Fi network that you connect to from the list
        •    In the window that opens, tap on the Renew Lease button
    6. Potential Quick Fixes When Your iPad Won’t Connect to Your Wifi Network
    http://ipadinsight.com/ipad-tips-tricks/potential-quick-fixes-when-your-ipad-won t-connect-to-your-wifi-network/
    ~~~~~~~~~~~~~~~~~~~~~~~~~
    Fix WiFi Issue for iOS 7
    http://ipadnerds.com/fix-wifi-issue-ios-7/
    iOS 6 Wifi Problems/Fixes
    Wi-Fi Fix for iOS 6
    https://discussions.apple.com/thread/4823738?tstart=240
    How To: Workaround iPad Wi-Fi Issues
    http://www.theipadfan.com/workaround-ipad-wifi-issues/
    Another Fix For iOS 6 WiFi Problems
    http://tabletcrunch.com/2012/10/27/fix-ios-6-wifi-problems-ssid/
    Wifi Doesn't Connect After Waking From Sleep - Sometimes increasing screen brightness prevents the failure to reconnect after waking from sleep. According to Apple, “If brightness is at lowest level, increase it by moving the slider to the right and set auto brightness to off.”
    Fix For iOS 6 WiFi Problems?
    http://tabletcrunch.com/2012/09/27/fix-ios-6-wifi-problems/
    Did iOS 6 Screw Your Wi-Fi? Here’s How to Fix It
    http://gizmodo.com/5944761/does-ios-6-have-a-wi+fi-bug
    How To Fix Wi-Fi Connectivity Issue After Upgrading To iOS 6
    http://www.iphonehacks.com/2012/09/fix-wi-fi-connectivity-issue-after-upgrading- to-ios-6.html
    iOS 6 iPad 3 wi-fi "connection fix" for netgear router
    http://www.youtube.com/watch?v=XsWS4ha-dn0
    Apple's iOS 6 Wi-Fi problems
    http://www.zdnet.com/apples-ios-6-wi-fi-problems-linger-on-7000004799/
    ~~~~~~~~~~~~~~~~~~~~~~~
    iPad: Issues connecting to Wi-Fi networks
    http://support.apple.com/kb/ts3304
    How to Boost Your Wi-Fi Signal
    http://ipad.about.com/od/iPad_Troubleshooting/a/How-To-Boost-Your-Wi-Fi-Signal.h Mt
    Troubleshooting a Weak Wi-Fi Signal
    http://ipad.about.com/od/iPad_Troubleshooting/a/Troubleshooting-A-Weak-Wi-Fi-Sig nal.htm
    How to Fix a Poor Wi-Fi Signal on Your iPad
    http://ipad.about.com/od/iPad_Troubleshooting/a/How-To-Fix-A-Poor-Wi-Fi-Signal-O n-Your-iPad.htm
    iOS Troubleshooting Wi-Fi networks and connections  http://support.apple.com/kb/TS1398
    iPad: Issues connecting to Wi-Fi networks  http://support.apple.com/kb/ts3304
    WiFi Connecting/Troubleshooting http://www.apple.com/support/ipad/wifi/
    How to Fix: My iPad Won't Connect to WiFi
    http://ipad.about.com/od/iPad_Troubleshooting/ss/How-To-Fix-My-Ipad-Wont-Connect -To-Wi-Fi.htm
    iOS: Connecting to the Internet http://support.apple.com/kb/HT1695
    iOS: Recommended settings for Wi-Fi routers and access points  http://support.apple.com/kb/HT4199
    How to Quickly Fix iPad 3 Wi-Fi Reception Problems
    http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
    iPad Wi-Fi Problems: Comprehensive List of Fixes
    http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
    Connect iPad to Wi-Fi (with troubleshooting info)
    http://thehowto.wikidot.com/wifi-connect-ipad
    10 Ways to Boost Your Wireless Signal
    http://www.pcmag.com/article2/0,2817,2372811,00.asp
    Fix iPad Wifi Connection and Signal Issues  http://www.youtube.com/watch?v=uwWtIG5jUxE
    Fix Slow WiFi Issue https://discussions.apple.com/thread/2398063?start=60&tstart=0
    How To Fix iPhone, iPad, iPod Touch Wi-Fi Connectivity Issue http://tinyurl.com/7nvxbmz
    Unable to Connect After iOS Update - saw this solution on another post.
    https://discussions.apple.com/thread/4010130
    Note - When troubleshooting wifi connection problems, don't hold your iPad by hand. There have been a few reports that holding the iPad by hand, seems to attenuate the wifi signal.
    Some Wi-Fi losses may stem from a problematic interaction between Wi-Fi and cellular data connections. Numerous users have found that turning off Cellular Data in Settings gets their Wi-Fi working again.
    You may have many apps open which can possibly cause the slowdown and possibly the loss of wifi. In iOS 4-6 double tap your Home button & at the bottom of the screen you will see the icons of all open apps. Close those you are not using by pressing on an icon until all icons wiggle - then tap the minus sign. For iOS 7 users, there’s an easy way to see which apps are open in order to close them. By double-tapping the home button on your iPhone or iPad, the new multitasking feature in iOS 7 shows full page previews of all your open apps. Simply scroll horizontally to see all your apps, and close the apps with a simple flick towards the top of the screen.
    Wi-Fi or Bluetooth settings grayed out or dim
    http://support.apple.com/kb/TS1559
    ~~~~~~~~~~~~~~~
    If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
     Cheers, Tom

  • Brightness buttons not adjusting brightness. hp 2000-2110tu notebook

    hp 2000-2110tu notebook
    windows 7 ultimate
    brightness buttons not adjusting brightness. i don't know exactly but may be i have installed bios f.34.
    This question was solved.
    View Solution.

    Hello Ayajanna56,
    I understand the brightness buttons are not functioning correctly is that correct? I will do my best trying to assist you with this issue.
    There actually is a more recent released of bios for your system. Clink this link and installed it and see if that helps. Plug in the ac adapter before the install and make sure to save the download first and then install it.
    If I have been helpful or if you’d like to say thanks you can click the white star under my name to give me Kudos.  I really appreciate it.
    Please respond at your earliest convenience with your results.
    Thanks
    Clicking the White Kudos star on the left is a way to say Thanks!
    Clicking the 'Accept as Solution' button is a way to let others know which steps helped solve the problem!

  • After recent update to my macbook pro itunes will not open, it just bounces when I click on it

    fter recent update to my macbook pro itunes will not open, it just bounces when I click on it

    Means they are going to mess up your iPhoto Library pictures database  so it's unreadable by older versions of iPhoto on older OS X operating systems.
    You have the choice to right click on the iPhoto Lbrary and inside is a folder called Origianls, use the Finder to Duplicate this folder, then move the OriginalsCopy out of the iPhoto Library folder and save it elsewhere.
    I dont' think Apple will every intentionally touch the originals, however it's possible they could.

  • My MacBook Pro persistently will not connect to my wireless router. The message "connection timeout" appears. What is a connection timeout and how can I fix?

    My MacBook Pro persistently will not connect to my MiFi Verizon wireless router. The message "connection timeout" appears. What is a connection timeout and how can I fix?

    Hi there terri900!
    You may want to try configuring your router settings to match the recommended settings for iOS and OS X devices, which can be found here:
    iOS and OS X: Recommended settings for Wi-Fi routers and access points
    http://support.apple.com/kb/ht4199
    You may also find some helpful information for troubleshooting this issue in this article, which can help you with any manner of issues with Wi-Fi connections:
    Wi-Fi Quick Assist
    http://support.apple.com/kb/HT1145
    Take care, and thanks for visiting the Apple Support Communities.
    -Braden

  • My IPOD and Macbook Pro both will not connect to the Itunes store through Itunes says no internet connection, but I can connect through safari and I have a internet connection

    My IPOD and Macbook Pro both will not connect to the Itunes store through Itunes says no internet connection, but I can connect through safari and I have a internet connection

    As I mentioned above, I am not very tech savvy so I have no idea why a wireless protocol would be showing up there, I'm just listing everything I see in hopes that someone might know something I can try. This is why I am asking for help here - I'm not sure what has happened that has made me unable to connect, especially since it seemingly occured while nobody was using the computer.
    I guess I should clarify that I'm not a total hillbilly- normally my firewall is set to 'on', but I set it to 'off' to try and troubleshoot the issues here as I was told that sometimes it can interfere with the computer's ability to connect to the internet. If this is not the case and firewall does not affect anything, I will turn it back on while I try to fix this.
    I have tried the method you mentioned above a few times - I actually contacted my ISP earlier this week and they recommended resetting the router like that. They didn't mention any known network issues.

  • I HATE my new MACBOOK PRO, it will not let me open any PDF files and I downloaded the ADOBE READER three freaking times and it keeps saying that all the files are corrupt. I would rather have my 2008 Dell at this point. what is wrong with this thing

    I HATE my new MACBOOK PRO, it will not let me open any PDF files and I downloaded the ADOBE READER three freaking times and it keeps saying that all the files are corrupt or damaged. I would rather have my 2008 Dell at this point. what is wrong with this thing

    Perhaps the PDF files are corrupted.
    Hit the command key and spacebar, a blue Spotlight in the upper right hand corner appears, now type Preview and press return on the Preview program.
    Now you can try opening the PDF's from the file menu and see what's going on.
    If they are corrupted, perhaps they are trojans from your Windows PC or gotten from a bad location online.
    Download the free ClamXav and run a scan on the possibly infected folder.

  • HT3964 I have a MacBook Pro that will not boot up. The apple symbol   Read more: I have a MacBook Pro that will not boot up. The apple symbol is there and a spinning wheel continues to spin. Any options??

    I have a MacBook Pro that will not boot up. The apple symbol is there and the spinning wheel keeps spinning. Any idea how I can fix this?

    Reinstall OS X.
    Reinstalling Lion/Mountain Lion Without Erasing the Drive
    Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
    Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
    When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list.  In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive.  If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
    Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
    Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
    OR
    Reinstall Snow Leopard without erasing the drive
    Do the following:
    1. Repair the Hard Drive and Permissions
    Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list.  In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive.  If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
    If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
    2. Reinstall Snow Leopard
    If the drive is OK then quit DU and return to the installer.  Proceed with reinstalling OS X.  Note that the Snow Leopard installer will not erase your drive or disturb your files.  After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
    Download and install the Combo Updater for the version you prefer from support.apple.com/downloads/.

  • HT1338 how do I boot a MacBook pro that will not shut down

    HOw can I reboot shut don MacBook pro that will not shutdown, please help.....?......

    Hi, I'm having similar problem. I just got a Lacie ext drive to back up my photos and vids and now my laptop wont shut down or go to sleep properly.  May or may not be related to Lacie. Could just be a coincidence.
    I first noticed problem when I closed it to go to sleep and the apple logo kept flashing on and off.
    When I opened the laptop the screen was flashing white then black, then white then black.   Had to force shut
    it down (opt, cmnd,power), had to hold it down a very long time before it responded.  However, that didn't keep it shut down. It just started back up again.  But at least it wasn't flashing. 
    Then when i tried to shut it down normally it would shut down, go black for a moment and then the Apple song would play and it would start  back up again.    It also won't stay asleep. It sleeps for two seconds when put into sleep mode then snaps awake.
    strange problem... Very annoying. Next option is to unplug and let battery run out.

  • HT3964 2009 macbook pro superdrive will not load discs

    2009 Macbook pro superdrive will not accept discs. The loading mechanism appears not to be responding. The mechanism may be jammed as it will not allow the disc to be fully inserted. Last time I played a disc I had trouble ejecting it. I managed to get disc out can't remember how. Think the disc must have partially ejected and I managed to pull it out. Can anyone help?

    Hi kayj128,
    Thanks for using Apple Support Communities.  This article has steps for troubleshooting the SuperDrive built in to your Macbook Pro:
    Apple Computers: Troubleshooting the slot-loading SuperDrive
    http://support.apple.com/kb/HT2801
    Doesn't accept discs
    Be sure to check your disc to make sure it is flat. You can check this by putting the disc upside-down on a flat surface. If the disc is bowed up on any side or in the center, do not use the disc because it might get stuck in the drive. Do not use discs that have anything attached to them or dangling from them (such as "sweeper" or cleaning discs).
    If the drive struggles when you put in a disc or stops part-way, carefully look at the disc for labels that may be interfering. If there aren't any raised labels then try putting the disc in a few more times.
    Try another disc to see if the issue is being caused by a specific disc.
    Make sure you insert the disc far enough for the drive mechanism to activate. You need to insert discs nearly all the way before the drive will activate and pull them in. If you don't completely insert a disc, the drive will reverse and push the disc back out.
    Allow the drive one or two seconds to accept the disc while it is fully inserted.
    Reset the System Management Controller (SMC).
    If the drive repeatedly does not accept discs, contact Apple or an Apple Authorized Service Provider, or make an appointment with an Apple Retail Store.
    Cheers,
    - Ari

  • When I add music from my CD onto my Macbook, the music will not transfer from iTunes on my Mac to my iPhone/iPad.  I'm using iCloud, current software updates and Music Match. Any solutions?

    When I add music from my CD onto my Macbook, the music will not transfer from iTunes on my Mac to my iPhone/iPad.  I'm using iCloud, current software updates and Music Match. Any solutions?

    I figured it out...user error

  • My macbook running Lion will not open large jpgs.

    my macbook running Lion will not open large jpgs. looks like anything over 3 mb does not get a thumbnail image and when i try to open the file I get the message " It may be damaged or use a file format that Preview doesn’t recognize". smaller files open without any problem. what to do? thanks

    It should open. I have jpegs lager and they open. Try launching Preview and opening it from within the command-o window.

  • My macbook pro battery will not hold charge

    My macbook pro battery will not charge. The laptop will only turn on after it has been plugged in to charge, and when unplugged it automatically dies. When plugged in the battery indicator is green and the top right corner of the screen says "Not charging". I left town for a week with the laptop off and I came back in town and it won't charge. What can I do to fix this?

    If you are under warranty call Apple and get a case number. 

  • My Macbook Pro suddenly will not charge.  I tried using 2 different cables  and it still will not charge.  What should I do??

    My Macbook Pro suddenly will not charge.  I tried using 2 different cables  and it still will not charge.  What should I do??

    Look at the power adapter connection on the MBP and make certain that it is clean and not discolored.
    Trya SMC reset:
    http://support.apple.com/kb/ht3964
    Ciao.

Maybe you are looking for