4/29/2023 0 Comments Keyboard mac restart![]() ![]() If any inputs are being sent via the Bluetooth keyboard before the controllers are active, then they will not be recognized by the system. These are then passed to the OS X kernel to invoke the desired startup sequence. It is at this point that the system will accept boot variables, either stored in the PRAM or those being sent via keyboard inputs. There are a couple of workarounds if you find yourself in this situation.Īpple's Bluetooth hardware controllers activate after all of the system's self-tests at boot complete and the EFI firmware loads successfully, which is indicated by the system playing the standard Mac startup sound. While you might assume that these options require a USB keyboard or other physical connection, this is not always the case. These options can be invoked by holding their respective key combinations immediately when powering on the system however, if you use Apple's Bluetooth keyboard, you could find that the system may ignore these inputs and boot normally. ![]() In addition there is Single User mode (Command-S) for a command-line interface, Apple's hardware diagnostics tests (the "D" key), Target Disk mode (the "T" key), and holding the Option key will bring up the boot loader for choosing a startup disk. ![]() Of these, Safe Mode is perhaps the most common it offers a limited boot environment and can be started by holding the Shift key. Hope this helps.Apple offers several alternative boot environments for OS X that can help you troubleshoot problems you might be experiencing, which can be invoked by holding various key combinations at startup. Two, once when I unplugged the wireless keyboard+mouse, the native keyboard and trackpad continued working for a while before freezing again. One, on once occasion, the native keyboard and trackpad again stopped responding even when the wireless keyboard+mouse were connected. Well, when I connected a wireless keyboard+mouse and started the computer, not only did the wireless keyboard+mouse work, but the native keyboard and trackpad worked too! So this makes me suspect that it is a software, rather than a hardware issue… But how could it be a software issue when I haven’t performed any OS update in a long time?Īnyway, here are two more additional pieces of info in case its helpful. Of late, on restarting, the computer would complain that it couldn’t detect any keyboard/mouse and start looking for a wireless one. 4-5 times out of 10, a restart would fix it. ![]() The keyboard and trackpad frequently become non-responsive. My Macbook Pro (Retina, 13 inch, Early 2015) has started displaying the same problem. The keyboard and trackpad are completely unrecognised by the computer itself. I have no idea what to do my MacBook has now been rendered completely useless by this glitch. When my iPhone would connect, it used to switch to the "photos" app, but it's hasn't done this for about a week, although the phone is still charging. The cord is a little frayed and the connection isn't always perfect. I don't know if it matters, but for the past six weeks or so, I have been charging my iPhone 6s Plus via one of the USB ports. I have also tried doing this in safe mode but this does not seem to make a difference. I have tried restarting my MacBook but this keeps happening. There isn't a keyboard connected." I have left this window for as long as 15 minutes but nothing changes. After about 30 seconds, a little window popped up saying "Bluetooth keyboard setup. This morning, I launched my MacBook and the trackpad and keyboard were not responsive. I have a 13" MacBook Pro bought in mid-2016. ![]()
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