I also keep 10.15.3. I don’t want to check updates until Apple will be sure they fixed it. If then any problem occurs it will be clear hardware. Still I can’t understand how it could be hardware if it shows on 10.15.4 and later. Sooo strange.
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16" MBP GPU Panics
- Thread starter StolenPhone
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yeah, and for that reason, I also was suspecting software issue. But also strange that ONLY 16” is affected... so maybe hardware..? (Unless 16” also has some unique inherent graphics system apart from 13”..?)
even though Apple engineers confirmed to me it is OS software problem, I lost credibility of their team and unsure what to believe.
Bigger MacBooks have dGPU so maybe some drivers are incompatible with soft in MBP 16” I have no idea.
Nevertheless I had kernel panics in previous MBP16 which I returned. The next one is still on 10.15.3 and it will be as long as soft is uncertain. This is my first big MBP and really I didn’t expect this kind of issue. I remember butterfly keyboard. I also had a problem in 2016 model. I was like beta tester. Fortunately service replaced broken keyboard to newer model and everything was fine. Hope it will be same scenario this time. Too be honest every time (probably) Apple helps customers at the end. Sometimes it takes so long and ends with special service program. I don’t care what they will do. I just want to fell comfortable with my MacBook.
Mine: crashes / panics with "PowerPlay Failed Resume"
Nice Name: MacBook Pro (16-inch, 2019)
Machine Model: MacBookPro16,1
Production year : 2019
Production week : 51 (December)
Model introduced: 2019
Memory - flavour: Soldered
Memory - maximum total: 64GB
Factory: C0 (Quanta Computer (Subsidiary = Tech Com) China)
Nice Name: MacBook Pro (16-inch, 2019)
Machine Model: MacBookPro16,1
Production year : 2019
Production week : 51 (December)
Model introduced: 2019
Memory - flavour: Soldered
Memory - maximum total: 64GB
Factory: C0 (Quanta Computer (Subsidiary = Tech Com) China)
I had a rough few days with my 16" crashing on my while doing nothing special (opening a web site...). I called Apple support again 2 times. The first time, the engineer was adamant that it was software and all I could do was wait. The second time, I insisted and the guy said I could bring it in for a repair. But I'm hesitant to do so. First, I'm not getting the GPU restarts in the console log while running GeekBench 5 - Intel - Metal. I'm only getting the prodding. Second, several people here indicate that a swap of the main board didn't help.
Nothing left but waiting, then? Very frustrating for a €4K machine.
Nothing left but waiting, then? Very frustrating for a €4K machine.
I'm also having kernel panic trouble with my new 16". Since lunchtime on Sunday when it arrived, I've had at least 15 and there have been some that never generated a Console report because they come right after a restart. The first one happened within 4 hours of first boot, I'd barely even started installing software. Since then they've mostly been in the evening, strangely. The record is 6 in 10 minutes, but I can also go all day without one. No idea what triggers them, they've happened just listening to music or other light work. Doesn't seem related to sleep.
Anyway, I've been reading this thread with interest and have tried the Geekbench Metal test – passes with normal score. I have all the panic logs, but don't really know what I'm looking for to match it to others' errors.
If this is indeed software, is there any point in using the 14-day exchange to get a new one? I have another 10 days to send it back, but if it's going to be the same, I won't bother.
Tl;dr – is this problem so widespread that a replacement will also have intermittent KPs?
10.15.5
Man, I haven't posted on these forums since 2009, and it was about kernel panics, except I helped fix them.
Anyway, I've been reading this thread with interest and have tried the Geekbench Metal test – passes with normal score. I have all the panic logs, but don't really know what I'm looking for to match it to others' errors.
If this is indeed software, is there any point in using the 14-day exchange to get a new one? I have another 10 days to send it back, but if it's going to be the same, I won't bother.
Tl;dr – is this problem so widespread that a replacement will also have intermittent KPs?
10.15.5
Man, I haven't posted on these forums since 2009, and it was about kernel panics, except I helped fix them.
I'm on my 14th day and so far the only time it crashed It was when I had it connected to external monitor.
A log of hours in Xcode + a tone of chrome tabs and other software.
Ultimately I initiated the return and I will probably send it back.
I have no confidence that It won't develop all the issues you guys are having here.
A log of hours in Xcode + a tone of chrome tabs and other software.
Ultimately I initiated the return and I will probably send it back.
I have no confidence that It won't develop all the issues you guys are having here.
I bought my MBP 16" in April and at that time I haven't had this problem even once. It started when I did the first upgrade, for 10.15.4 I think. Now it happens every single time when my MBP sleeps, sometimes it restarts 3 or 4 times before it starts for good.
Very frustrating!
Very frustrating!
I think mine shipped with 10.15.4 and upgraded in the first couple of hours out of the box. So the kernel panics all happened with 10.15.5 for me.
I did an SMC reset on Thursday morning and ran it all day sharing screen on Zoom, working in Logic, forcing the dGPU with a game here and there. I then taught over Zoom for 4 hours in the evening using Logic with an external display and it had no problems at all. Still no panics a day or so later.
So perhaps my own problem was not doing the SMC reset after the 10.15.5 update. Fingers crossed this is a fix for me, but even if the odd SMC reset gets me 24+ hours of peace, that's a win.
I did an SMC reset on Thursday morning and ran it all day sharing screen on Zoom, working in Logic, forcing the dGPU with a game here and there. I then taught over Zoom for 4 hours in the evening using Logic with an external display and it had no problems at all. Still no panics a day or so later.
So perhaps my own problem was not doing the SMC reset after the 10.15.5 update. Fingers crossed this is a fix for me, but even if the odd SMC reset gets me 24+ hours of peace, that's a win.
So sad to see my desktop rendering is insanely mess after I execute Photoshop - then soon after I quit Photoshop, my MBP16 soon crashes (powerdown); and after tapping power button, it looks like this, automatically resuming the previous session. 10.15.5 (and 10.15.6 beta2).
Attachments
I haven’t had a panic for a 3-4 weeks fortunately. I was quite liberal in doing some SMC/PRAM resets for a while there, but nobody can say whether they do anything more than placebo. Not even Apple can say.
At the very least there is no harm in it and my Mac has become more stable over time.
At the very least there is no harm in it and my Mac has become more stable over time.
Last edited:
panic(cpu 0 caller 0xffffff7f9e6c1983): GPU Panic: mux-regs 5 3 7f 1f 0 0 severity 3 WS-ready 0 switch-state 13 IG FBs 0 EG FBs 0:1f power-state 0 3D idle HDA idle system-state 0 power-level 20:20 power-retry 0:0 connect-change 0 : PowerPlay Failed to Initialize.
My MBP freezes all the time, three times in a row before getting started. Even a 'reset' with cmd-R did'nt work... Its a new MBP, two months old. What and how big is my problem :-(
My MBP freezes all the time, three times in a row before getting started. Even a 'reset' with cmd-R did'nt work... Its a new MBP, two months old. What and how big is my problem :-(
Quick FYI / Update...
1. I can not get the issue to occur when booted into Safe Mode. Further implication that it's not a hardware issue??
2. I tried a series of SMC & NVRAM/PRAM resets, in various sequences etc. This made the situation worse in fact, as it started panicking randomly and every single time I went to shut down or restart (which is what I'd been doing to work around the fact that the machine can't safely be left to sleep!). Previously, my issue only occurred when sleeping for a few minutes.
3. On the way to giving up, and having backed up my data with the next step being to clean install OS or try to send the (70 days old) machine back, I've tried the Big Sur developer beta (including SMC / NVRAM resets post that install). That's also made no difference, but pleased I guess to report that apart from Google sync all software seems to work fine...
Now back to using Amphetamine during the working day to prevent the machine from sleeping...
1. I can not get the issue to occur when booted into Safe Mode. Further implication that it's not a hardware issue??
2. I tried a series of SMC & NVRAM/PRAM resets, in various sequences etc. This made the situation worse in fact, as it started panicking randomly and every single time I went to shut down or restart (which is what I'd been doing to work around the fact that the machine can't safely be left to sleep!). Previously, my issue only occurred when sleeping for a few minutes.
3. On the way to giving up, and having backed up my data with the next step being to clean install OS or try to send the (70 days old) machine back, I've tried the Big Sur developer beta (including SMC / NVRAM resets post that install). That's also made no difference, but pleased I guess to report that apart from Google sync all software seems to work fine...
Now back to using Amphetamine during the working day to prevent the machine from sleeping...
When I tried my last reinstall, the machine crashed while doing the post-reinstall setup... I wanted to keep it clean without Time Machine backup restore. But after that crash, I re-reinstalled and restored my backup. Strangely, it's hardly been crashing on me since. Only when I stubbornly close the lid to test it, then it predictably crashes on me.
My 16" MacBook Pro crashes often when it's plugged in and sleeping. Tried reinstalling macOS, exchanged it for a new one at Best Buy, still having the problem. Called Apple Support many times, still have this issue. Their response so far is "we have to wait on the engineers to find a fix." This is just unacceptable. Worst experience I've ever had with Apple.
Still on 10.15.3 and this rarely happens. I think it’s happened 2 or maybe 3 times in the 6 months since I bought it. Not recently at all. This is why I’m afraid to update to 10.15.5. Really hoping .6 cures this and turns Catalina into a respectable operating system so I don’t feel the need to update to Big Sur right away. Kind of a bummer that this is the only option on the 16”
Eating my own words here: it crashed twice on my when trying to enter a Skype call.
Does anybody know if these PowerPlay crashes also happen on the 5600 GPU machine? I'm considering trading this one for a new one, if Apple accepts, because at least it already fixes the heat problem with an external monitor.
Have had it for one week. Radeon High Side stays at ~5W in clamshell and 6-8w in open when connected to external display. So far the 5600M seems to fix for a lot of issues.
My crashes started only after a month. But I'm hoping with you that the 5600M fixes things!
Short update. I just called Apple support again yesterday to apply some pressure. The guy again tried to get rid of me by saying it was a software problem that was being treated etc.etc.
I explained to him that a €4K plus machine wasn't any good if it crashed on me during the day, had no way to reliably shut down (crash when sleep and crash when shut down) and that crazy with the fans during a conf call with an external monitor plugged in. And that my 7 year old mac did better in all that. I also mentioned that I worked in tech support, so it wasn't personal but directed at Apple. "If your car doesn't start because of a software problem in the computer, it just doesn't work, does it?". And it's not getting better: it crashes more or less predictably when entering a Skype for Business call.
He said there was one more thing he could try and he would get back to me within 2 days. Very curious what is going to happen. PCB swap? Machine swap?
I explained to him that a €4K plus machine wasn't any good if it crashed on me during the day, had no way to reliably shut down (crash when sleep and crash when shut down) and that crazy with the fans during a conf call with an external monitor plugged in. And that my 7 year old mac did better in all that. I also mentioned that I worked in tech support, so it wasn't personal but directed at Apple. "If your car doesn't start because of a software problem in the computer, it just doesn't work, does it?". And it's not getting better: it crashes more or less predictably when entering a Skype for Business call.
He said there was one more thing he could try and he would get back to me within 2 days. Very curious what is going to happen. PCB swap? Machine swap?
Another quick update:
10.15.6 Beta 3 also does not resolve the issue (neither did the Big Sur developer beta). I have been in contact with apple support and have a support ticket and they committed to come back to me in 2 working days but that is now 3 working days ago and they are not responding to email.
Encouraged by the reports saying that the 5600M machines may not have this issue but not at all keen on spreading the cost difference just to try and get a working machine! Also, it seems that not all 5500M machines have the issue (as there are 5500M users who are saying they have fixes / resolutions) so it may just be sporadic software / hardware issues?
10.15.6 Beta 3 also does not resolve the issue (neither did the Big Sur developer beta). I have been in contact with apple support and have a support ticket and they committed to come back to me in 2 working days but that is now 3 working days ago and they are not responding to email.
Encouraged by the reports saying that the 5600M machines may not have this issue but not at all keen on spreading the cost difference just to try and get a working machine! Also, it seems that not all 5500M machines have the issue (as there are 5500M users who are saying they have fixes / resolutions) so it may just be sporadic software / hardware issues?
My 16" MBP starting restarting on its own about 2 weeks ago after going to sleep and when I try to wake it by tapping on the trackpad. After it restarts, the crash report shows a kernel panic. When I took into Apple, the Genius tech reset it to factory default to see if it was software related and when it still happened, he sent it for repair. I should get it back tomorrow, so hopefully, they'll tell me what was wrong with it.
All,
I too am experiencing kernel panics on my MPB 16", 5500M on 10.15.5 when waking from sleep.
One further layer of annoyance is my touchbar has stopped working altogether. It is blank and does not respond to touch at all.
Resetted SMC, VRAM, safe mode and reformatting does not help.
Obviously very annoying. Should I wait for this fabled software update or shall I take the machine back to the Apple Store...?
I too am experiencing kernel panics on my MPB 16", 5500M on 10.15.5 when waking from sleep.
One further layer of annoyance is my touchbar has stopped working altogether. It is blank and does not respond to touch at all.
Resetted SMC, VRAM, safe mode and reformatting does not help.
Obviously very annoying. Should I wait for this fabled software update or shall I take the machine back to the Apple Store...?