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Constant Kernel Panics – userspace watchdog timeout: no successful checkins from com.apple.WindowServer

vmalloc

vmalloc

macrumors newbie
Jun 4, 2020
12
1
Unfortunately Mojave is not an option for owners of 16" Macbook Pros... I suspect that my specific issue started only after the upgrade to 10.15.5, and did not happen on 10.15.4. Any idea where I can get a full installer for 10.15.4 to reinstall?
 
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Oskar Neumann

macrumors newbie
Jun 16, 2020
3
0
I had exactly the same issue - installing 10.15.4 over my existing installation fixed it for me. Fortunately still had the installer laying around.
 
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fruit of Zappa's loins

macrumors newbie
Dec 6, 2019
10
10
This site is like an Agony Aunt's column. It is a complete joke as is Apple with its operating systems which you could not put into any critical system in the real world.
 
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Oskar Neumann

macrumors newbie
Jun 16, 2020
3
0
Aren't these just the updates and not complete installers?
I did not lose any settings or apps, I could just install on top of my current installation to downgrade.
 
vmalloc

vmalloc

macrumors newbie
Jun 4, 2020
12
1
@aihkas those aren't full installers. Fetching the full installer always gets the latest version.

@Oskar Neumann are you sure? Do you actually see the current version being 10.15.4? I don't think this path is supported while keeping all your configuration - all references point to a clean install as the only option
 
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Oskar Neumann

macrumors newbie
Jun 16, 2020
3
0
Yes, the current version is 10.15.4 and it fixed the issue. This path is indeed supported. You can at any point downgrade by reinstalling the OS on top of the current data.
 
vmalloc

vmalloc

macrumors newbie
Jun 4, 2020
12
1
@Oskar Neumann Nice to know... Now I only have to figure out where to get the 10.15.4 full installer. It is incredibly hard to find as it turns out...
 
C

CMMChris

macrumors 6502a
Oct 28, 2019
850
794
Germany (Bavaria)
A bit off topic, but this is how well video editing works on my Hackintosh in 10.15.6 Beta 2 with a Radeon VII:

[Sammelthread] macOS Catalina 10.15 Dev-Beta Erfahrungen - Hackintosh-Forum - Deine Anlaufstelle für Hackintosh & mehr...

MacOS Catalina 10.15 ist raus für Developer...Lasst uns hier die neusten Erkenntnisse und Erfahrungen zum neuen macOS Catalina 10.15 auf dem Hackintosh sammeln. Und Erfahrungen austauschen....
www.hackintosh-forum.de www.hackintosh-forum.de

It used to be running rock solid and 100% stable up until and including 10.15.3. Starting with 10.15.4 things started becoming worse with each and every release. Some Mac Pro 2019 owners I have contact to report the same instability during FCPX video editing. So not a Hackintosh issue, which is unlikely anyway since I run on a perfect golden build that is as close to a real Mac as possible. Apple's software quality is 100% purest garbage these days.
 
A

AndrewSignerts

macrumors newbie
Jul 15, 2014
7
1
sclowbird said:
I bought a new MBP 16" base model last week. I can reproduce this behavior 100% on Catalina 10.15.5:
(Independent if power nap is on / off)

First thing I noticed and was able to reproduce:

1. Connect the MBP display to an external Monitor (I connected it directly with a DP -> Type C) cable. (It doesn't matter which port on the MBP).
2. Close the lid of the MBP. Everything is working as it should at this point in time (external Monitor).
3. Put the MBP in to sleep (Apple logo in the upper left corner -> sleep)
4. Wait for about 4-5 minutes.
5. Try to wake the MAC with external peripheral (in my case apple magic keyboard)

Result:
Screen of external monitor stays black. When opening the MBP it is completely dark (touchbar, keyboard light, display). It gets hot in the upper keyboard area. From there on there are only two ways out:
1. Wait about 5 minutes and the MAC restarts itself
2. Force restart

Second thing I noticed:
1. Connect the MBP display to an external Monitor (I connected it directly with a DP -> Type C) cable. (It doesn't matter which port on the MBP).
2. Close the lid of the MBP. Everything is working as it should at this point in time (external Monitor).
3. Put the MBP in to sleep (Apple logo in the upper left corner -> sleep)
4. I can't exactly specify the amount of time it has to stay in sleep (in my case it was overnight)
5. Open the lid of the MBP (external display still connected)
6. The MBP restarts (immediately shows startup apple logo)

I didn't have any of this issues on my MBP 13" - so I suppose it has something todo with the dedicated graphics card. It is very frustrating and I will likely send it back next week.
I don't have any of this problems when using the laptop without external monitor. On 10.15.4 I noticed one kernel panic when opening the lid from sleep without an external monitor - but this issue was resolved by disabling power nap.

I bought this machine at this point in time because I thought, the fact it was released last year makes it more likely that such issues are resolved by now (half a year later!). But the fact that such hiccups are not resolved makes me doubt they are going to be resolved at all. Maybe it is just time to move on frome apple.
Click to expand...

Old thread probably, but I have the exact same thing. When I encounter the first issue, I usually hear a strong "sigh" from the fans. The same short burst top-speed-fan noise that happens when you soft-SMC-resets the mac (holding the power-button for 8 seconds when it's turned off).
Anyway, if you're fast you can sometimes log into the mac from another mac, by use of screen sharing. Then do whatever you want to do (Save the damn document, anyone?) and then choose "Restart...".
 
aihkas

aihkas

macrumors newbie
May 30, 2020
16
0
vmalloc said:
@aihkas those aren't full installers. Fetching the full installer always gets the latest version.

@Oskar Neumann are you sure? Do you actually see the current version being 10.15.4? I don't think this path is supported while keeping all your configuration - all references point to a clean install as the only option
Click to expand...


Okay, now I see what you mean.
We can get it using this tool:
github.com

GitHub - corpnewt/gibMacOS: Py2/py3 script that can download macOS components direct from Apple

Py2/py3 script that can download macOS components direct from Apple - corpnewt/gibMacOS
github.com github.com

clone the repo then use ./gibMacOS.command to download and ./BuildmacOSInstallApp.command to build the installer.
 
aihkas

aihkas

macrumors newbie
May 30, 2020
16
0
I can report a successful downgrade to 10.15.4 on my 2019 16" MacBook Pro, it took around 30 minutes, all apps and settings were intact. No more "hangover" after sleep :D
I can't recommend without a Time Machine backup though.

Screenshot 2020-06-17 at 11.32.13.png
 
Last edited:
vmalloc

vmalloc

macrumors newbie
Jun 4, 2020
12
1
I couldn't get gibMacOS to work properly. The "build installer" phase fails with "cannot mount image". I suspect the downloader doesn't really download the correct files for some reason
 
aihkas

aihkas

macrumors newbie
May 30, 2020
16
0
@vmalloc the download step should give you an output stating whether it failed to download any file. Could you see all the files in the publicrelease folder? it should be more than 8 GB in size. also, double-check the path you are providing as a param to the build command, it should be similar to '/Users/[user]/[gibMacOS path]/macOS Downloads/publicrelease/001-04366 - 10.15.4 macOS Catalina'
 
vmalloc

vmalloc

macrumors newbie
Jun 4, 2020
12
1
It did not fail to download anything, or emit any errors, but the resulting size is about 2gb, and not 8...
 
aihkas

aihkas

macrumors newbie
May 30, 2020
16
0
@vmalloc I'm thinking the server might be closing the connection prematurely, how's your internet connection? I'll re-download and provide a screenshot to compare which file is failing. must be InstallESDDmg.pkg which was around 7.7 GB.
[automerge]1592396636[/automerge]
I did a trial with 10.15.3, however, it must be very similar in size.
Screenshot 2020-06-17 at 14.22.56.png
 
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vmalloc

vmalloc

macrumors newbie
Jun 4, 2020
12
1
I agree that some panics still happen, but in my case I had a panic every few hours, and every single time I connected/disconnected display adapters so it was unbearable for me
 
Fuad Efendi

Fuad Efendi

macrumors newbie
Jun 19, 2020
2
0
I have the same issue, MacBook Pro 2018, Catalina 10.15.5

However: I repeated steps described in initial post (downloaded 4k video, disabled graphics switching) and video is playing in a loop few minutes already and nothing wrong with it. So, it is not GPU in my case.

I have similar freezes few times a week in average, sometimes only once, sometimes 10-15 times. And I had it with my old MacBook (with Mojave - not sure, but later with old Catalina) where I suspected CPU over-heaten, incompatible SSD.

Some of hard-resets seems to help but then in 1-2 weeks issues start to happen again. After upgrade of "Path Finder" issue disapperaed for two weeks but now I have it daily again.

I sent maybe thousand crash reports already.
 
fulo

fulo

macrumors newbie
Jun 5, 2020
7
2
I'd like to try the gibMacOS to get the 10.15.4 installer. Unfortunately I'm absolutely unfamiliar with Github.
Could anyone explain me detailed, how I can download the installer? Or could someone put the installer in my Tresorit-Vault?
 
Taz Mangus

Taz Mangus

macrumors 604
Mar 10, 2011
7,815
3,504
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