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Apple Computing Products:
macOS - Operating System
Mac won't sleep - "Idle sleep preventers: IODisplayWrangler"
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<blockquote data-quote="chscag" data-source="post: 1802977" data-attributes="member: 46727"><p>Well, since it won't sleep in safe mode, that sort of eliminates software as the cause. It could be hardware related as you say, especially if it just started doing that. Normally, a SMC reset will get things back to normal but you stated that you had tried that along with a NVRAM reset.</p><p></p><p>Do you have a bootable external hard drive that you can use to boot your MBP with? If you do, see if it will sleep when booted that way.</p></blockquote><p></p>
[QUOTE="chscag, post: 1802977, member: 46727"] Well, since it won't sleep in safe mode, that sort of eliminates software as the cause. It could be hardware related as you say, especially if it just started doing that. Normally, a SMC reset will get things back to normal but you stated that you had tried that along with a NVRAM reset. Do you have a bootable external hard drive that you can use to boot your MBP with? If you do, see if it will sleep when booted that way. [/QUOTE]
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Apple Computing Products:
macOS - Operating System
Mac won't sleep - "Idle sleep preventers: IODisplayWrangler"
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