Timeline for 2017 27" iMac Keyboard Issue
Current License: CC BY-SA 4.0
13 events
| when toggle format | what | by | license | comment | |
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| Feb 20, 2020 at 1:23 | answer | added | Scott Lott | timeline score: 2 | |
| Feb 19, 2020 at 20:40 | comment | added | Allan | I have to admit, it's got my interest because it's a unique problem. I would love to know what's the cause and resolution! | |
| Feb 19, 2020 at 20:33 | comment | added | Scott Lott | @Allan Even if the BT keyboard is turned off the USB keyboard doesn't work. The only way I was able to login yesterday was dig out my BT keyboard from the box, turn it on, then log in. I'll try your suggestion with the key combination, thanks for the help! | |
| Feb 18, 2020 at 21:56 | comment | added | Allan | I was just about to suggest what @IconDaemon said - power off the BT keyboard. | |
| Feb 18, 2020 at 21:33 | comment | added | IconDaemon | The wired keyboard does send keystrokes, (eventually,) so that shows us the wired keyboard and the USB bus actually works. Perhaps macOS prioritizes the BT keyboard at boot (many people don't have a wired keyboard at all) to allow login. Perhaps when Bluetooth is disabled, the Mac will then use USB for the keyboard. The other step is to power down the Bluetooth keyboard (if possible) or put it in a shielded location so that the Mac can't see it. As I was typing this comment, Allan suggested resetting NVRAM. That was going to be the next step. | |
| Feb 18, 2020 at 21:22 | comment | added | Allan |
There's no T2 chip on this model iMac, so it's not that. The fact that it's happening pre-boot could indicate something to do with NVRAM. Try resetting the NVRAM by holding Cmd-Opt-P-R while booting.
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| Feb 18, 2020 at 21:17 | history | edited | Scott Lott | CC BY-SA 4.0 |
added 4 characters in body
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| Feb 18, 2020 at 21:16 | comment | added | Scott Lott | @Allan, no USB hub. Connected directly to the iMac. | |
| Feb 18, 2020 at 21:16 | comment | added | Scott Lott | @IconDaemon, that sounds terrifying. My account is password locked and my hard drive is encrypted, not sure what I would do if there was absolutely no input capability on boot. I'd be locked out. | |
| Feb 18, 2020 at 21:11 | comment | added | IconDaemon | Have you tried disabling Bluetooth, then restarting? What happens then? | |
| Feb 18, 2020 at 21:01 | comment | added | Allan | +1 for a really interesting question.... Are you plugging the keyboard directly into the iMac or into a USB hub connected to the iMac? Oh...and welcome to Ask Different! | |
| Feb 18, 2020 at 20:50 | review | First posts | |||
| Feb 18, 2020 at 20:59 | |||||
| Feb 18, 2020 at 20:45 | history | asked | Scott Lott | CC BY-SA 4.0 |