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Apple Computing Products:
macOS - Notebook Hardware
MBA 2011 keyboard/trackpad freeze
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<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]
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Apple Computing Products:
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MBA 2011 keyboard/trackpad freeze
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