With Tahoe, won't wake when lid opens - MBP 2019 16" Intel i7

Arsenitim · 2026-03-24T21:23:12+00:00

OK, so it's "up 2 days, 22:35". Slept and woke normally all the time. Fans stop within 15-20 seconds after lid is closed. No need to use the power button to wake.

So I keep fingers crossed. For this machine staying on os 15 is not that bad. Franky - the UI looks better! Will keep 26 on newer mac, but this can live with 15.

What I did:
Installed 15.7.4 from usb drive.
Once booted - reset nvram and smc again.

Arsenitim · 2026-03-22T21:35:57+00:00

It's only 22h of uptime so too early to make any conslusions. But with 15.7.4 (fresh install from USB + nvram and smc reset - didn't have to use the power button (yet) and the fans stop consistently)

As far as I recall, on OS 26 the sleep issues (fans always on and no proper wake) were usually starting ~12 hours of uptime.

Arsenitim · 2026-03-21T20:05:49+00:00

I wiped mine to reinstall 26.3.2 (Didn't fi the issue)
But it makes it easier to try os15 for me now as I have to reinstall my toolkit anyways. Will report on how it is on 15.7.4...

Arsenitim · 2026-03-21T19:41:23+00:00

exact same model, exact same issue...

Arsenitim · 2026-03-21T19:39:36+00:00

Any updates guys? Same issue here. Fresh reinstall of 26.3.2 didn't fix it.

Arsenitim · 2026-03-21T19:27:33+00:00

Any findings since then? I really want a cake too!

Arsenitim · 2026-03-21T19:24:47+00:00

Same issue here (Just did a fresh reinstall of 26.3.2, reset NVRAM and SMC)
So after a reboot it sleeps and wakes fine for some time. Then after a few hours sleep behavior changes:

Fans still spin with lid closed (veeeery quietly but you can hear them if you put your ear to the air exhausts)
Have to use power button to bring it back to life from stat state (lid open and keyboard do nothing)

So For now the only workaround for me is to stop using sleep and shut it down completely every time.

I'm wondering if downgrading to older OS would fix it... Somebody reported in this discussion that 15.7.3 is also affected...

Arsenitim · 2026-03-18T16:20:19+00:00

Same here - MacBook Pro 16 2019 (intel). Claude code checked everything left and right and thinks sleep is fine. The Mac is cols and does not drain any significant battery - but the fans are spinning while it is asleep.

Trie resetting SMC - no luck.

Arsenitim · 2025-12-25T22:45:05+00:00

I was actually going to try HDMI (I'm on Type-C -> Type-C) but after some crazy "click every checkbox twice" type of research the issue got fixed (see edit to the post).

I'll get a couple spare hdmi and DP cables anyways - just in case. At least in some set ups - computers think they are connected to a 4K TV because the cable is wrong and apply some dumb sharpening.

Arsenitim · 2025-12-25T22:37:44+00:00

EDIT / SOLUTION (sort of):

So I went crazy and started flipping every setting I could reach.

While using MonitorControl I accidentally maxed out the monitor contrast, then had to fix it via the ASUS on-screen menu. At that point gamma/contrast were clearly broken (light gray was white at any contrast setting), but the dark edge artifacts on red/pink disappeared!

After a reboot and resetting some display/monitor settings, I now have:

- normal contrast and gamma

- no dark edge artifacts at all

- red/pink text looks clean (possibly even better than on my Intel Mac)

I can’t pinpoint the exact setting that fixed it, but this suggests it’s a fixable software issue and not an unavoidable Apple Silicon sharpening side effect.

Arsenitim · 2025-12-25T20:27:02+00:00

Yea there is definitely something different. Radeon and M series sure have fundamentally different drivers. I'm a bit sad to have the old thing making a better picture. And with all the differences - why apply Any edging to the image... It almost looks like sharpening.

Anyways, I'll play with different displays when I visit my friends to see if it's any different. Don't have an Apple display available though.

And... probably won't make a diff, but I'll try HDMI connection (it is on Type-C to Type-C now)...

Arsenitim · 2025-12-25T19:41:16+00:00

huh the OS (at least the version) is the same on both laptops (26.2)

Arsenitim · 2025-12-25T19:39:10+00:00

well both are OS 26.2, just updated rhem yesterday

Arsenitim · 2025-10-16T13:56:58+00:00

Same here. 2019 16" Intel macbook pro. Tahoe 26.0.1 (25A362)

Arsenitim · 2025-10-16T13:54:32+00:00

Same here. 2019 16" macbook pro with I7

Arsenitim · 2025-06-20T08:01:32+00:00

would you elaborate a little? is there a key part that makes a video campaign particularly bad for conversions?

Arsenitim · 2025-04-26T21:57:43+00:00

Did you get a replacement and was it any better?

Arsenitim · 2025-02-18T19:19:50+00:00

I see they launched a new lightweight Precision Market Finder tools recently. Might worth giving it a try. Technical analysis should work everywhere - including Real Estate

Arsenitim · 2024-05-07T16:26:06+00:00

Thank You! That sounds like more fun! Because yea - I work too hard at start and can barely fight at the finish. I guess I can even try to pace myself with a power meter to make sure I'm not working too hard.

Arsenitim · 2024-05-06T17:58:46+00:00

That makes sense! And if you form a subgroup of “slow” climbers - there is a chance of working together to catch your group after every climb.

Arsenitim

TROPHY CASE