Forums
New posts
Articles
Product Reviews
Policies
FAQ
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Menu
Log in
Register
Install the app
Install
Forums
Apple Computing Products:
macOS - Notebook Hardware
MBA 2011 keyboard/trackpad freeze
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="gazics" data-source="post: 1646737" data-attributes="member: 346445"><p>Hi!</p><p></p><p>I have a MacBook Air 13", 2011, with Mavericks.</p><p></p><p>The problem in a nutshell: the keyboard and the trackpad freezes. Putting it to sleep sometimes helps.</p><p></p><p>The problem detailed:</p><ul> <li data-xf-list-type="ul">trackpad behaves erratically for a second, then dies. System Preferences reports no trackpad.</li> <li data-xf-list-type="ul">the keyboard also dies (except the power button)</li> <li data-xf-list-type="ul">bluetooth dies shortly after. Bluetooth icon crossed out.</li> <li data-xf-list-type="ul">right side USB stops working</li> </ul><p></p><p>I can still use the left USB port to connect an Apple keyboard and a mouse.</p><p></p><p>I have tried:</p><ul> <li data-xf-list-type="ul">Clean install of Yosemite (this is of course more radical than kext cache cleaning, startup item cleaning and etc. on an existing install)</li> <li data-xf-list-type="ul">SMC / PRAM reset</li> <li data-xf-list-type="ul">Safe mode boot</li> <li data-xf-list-type="ul">Disassembly to the point of removing the touchpad ribbon cable, bluetooth/wifi module and the battery</li> <li data-xf-list-type="ul">Multiple power supplies / outlets / staying on battery power</li> </ul><p></p><p>It might be a hardware problem, but I need help to narrow it down.</p><p> </p><p>Some common log entries related to this:</p><p> </p><ul> <li data-xf-list-type="ul"><span style="font-family: 'Courier New'">SMC::smcReadKeyAction ERROR: smcReadData8 failed for key B0OS</span></li> <li data-xf-list-type="ul"><span style="font-family: 'Courier New'">AppleUSBHubPort::FatalError - Port 1 of Hub at 0xfa100000 reported error 0xe00002c0 while doing setting port power</span></li> <li data-xf-list-type="ul"><span style="font-family: 'Courier New'">SMC::smcInitHelper ERROR: MMIO regMap == NULL - fall back to old SMC mode</span></li> <li data-xf-list-type="ul"><span style="font-family: 'Courier New'">AppleUSBMultitouchDriver::message - kIOUSBMessagePortHasBeenReset.</span></li> <li data-xf-list-type="ul"><span style="font-family: 'Courier New'">AppleUSBMultitouchDriver::validateChecksum - 22-byte packet checksum is incorrect</span></li> </ul><p></p><p> </p><p><a href="http://forums.macrumors.com/showthread.php?t=1738679" target="_blank">A more detailed history</a>, I couldn't find any help there.</p><p> </p><p>I'm hoping to find someone who encountered a similar problem.</p><p></p><p>Thanks!</p></blockquote><p></p>
[QUOTE="gazics, post: 1646737, member: 346445"] Hi! I have a MacBook Air 13", 2011, with Mavericks. The problem in a nutshell: the keyboard and the trackpad freezes. Putting it to sleep sometimes helps. The problem detailed: [LIST] [*]trackpad behaves erratically for a second, then dies. System Preferences reports no trackpad. [*]the keyboard also dies (except the power button) [*]bluetooth dies shortly after. Bluetooth icon crossed out. [*]right side USB stops working [/LIST] I can still use the left USB port to connect an Apple keyboard and a mouse. I have tried: [LIST] [*]Clean install of Yosemite (this is of course more radical than kext cache cleaning, startup item cleaning and etc. on an existing install) [*]SMC / PRAM reset [*]Safe mode boot [*]Disassembly to the point of removing the touchpad ribbon cable, bluetooth/wifi module and the battery [*]Multiple power supplies / outlets / staying on battery power [/LIST] It might be a hardware problem, but I need help to narrow it down. Some common log entries related to this: [FONT="Courier New"][LIST] [*]SMC::smcReadKeyAction ERROR: smcReadData8 failed for key B0OS [*]AppleUSBHubPort::FatalError - Port 1 of Hub at 0xfa100000 reported error 0xe00002c0 while doing setting port power [*]SMC::smcInitHelper ERROR: MMIO regMap == NULL - fall back to old SMC mode [*]AppleUSBMultitouchDriver::message - kIOUSBMessagePortHasBeenReset. [*]AppleUSBMultitouchDriver::validateChecksum - 22-byte packet checksum is incorrect [/LIST][/FONT] [URL="http://forums.macrumors.com/showthread.php?t=1738679"]A more detailed history[/URL], I couldn't find any help there. I'm hoping to find someone who encountered a similar problem. Thanks! [/QUOTE]
Verification
What is Apple's smallest desktop computer called?
Post reply
Forums
Apple Computing Products:
macOS - Notebook Hardware
MBA 2011 keyboard/trackpad freeze
Top
