+1.... Running a (1 day old) MacbookPro 16" i9 2.3Ghz, 5500M 4GB, 16GB RAM, 1TB (higher spec base model) on Catalina 10.15.4
Only got the device yesterday and experienced 4 kernel panics while waking it up from sleep with the lid closed (3 different ones at that...). No external devices or monitors were used. The only thing that may be considered as an external device was a temporary thunderbolt bridge connection to my 2017 MBP 15" to move data over.
The first panic happened last night after about 10min of sleep, where instead of Touch ID I had to enter the password. At that time I only had installed a few Apps from the app store (Logic, Final Cut, Motion, Compressor, Main Stage, Office 365) and some fresh installs of 3rd party software (MS OneNote, Capture One, Steam, BetterSnap Tool, Intel Power Gadget). One process that may have run in the background was probably the icloud Fotos download (130GB in the cloud). Did not save this report.
This is the only crash where the laptop was not plugged in.
The second I experienced this morning when waking it up after the night, showing the following message:
"Sleep transition timed out after 180 seconds while notifying clients about upcoming system capability changes. Suspected bundle: com.apple.iokit.IOGraphicsFamily"
Having read about this issue before, I contacted Apple phone support right away. Standard procedure: Reset NVRAM, Reset SCM, Safe Boot to reset Cache.
=> Sent the device to sleep, crashed again after wake-up 30min later. Following message this time:
"Sleep transition timed out after 180 seconds while calling power state change callbacks. Suspected bundle: com.apple.iokit.IOGraphicsFamily"
So I called Apple support again: Tested for Malware this time, ran hardware diagnostics (first aid on SSD and D-boot), no issues found. Next was a fresh Catalina 10.15.4 install (keeping the data). The friendly lady on the phone told me to return the device if these measures didn't solve the issue, which I can't since I bought it at a 3rd-party vendor in Switzerland. All you can do is send it in for repair to their certified repair shop and hope for the best... -.-
Anyway, after the fresh install I closed the lid and just let it sit there. After about 30min with the lid closed, the fans spun up like crazy for 1s. So I walked over to it, opened the lid: Yet another crash. Message this time:
"panic(cpu 0 caller 0xffffff801ca16487): "AppleIntelFramebuffer::setPowerState(0xffffff81cbbf6000 : 0xffffff7f9ffd9d88, 1 -> 0) timed out after 45963 ms"@/AppleInternal/BuildRoot/Library/Caches/com.apple.xbs/Sources/xnu/xnu-6153.101.6/iokit/Kernel/IOServicePM.cpp:5296"
Also, on a MAYBE related note... I experienced some weird behavior related to graphics.
1) In the game Cities: Skylines (Steam), which worked perfectly fine on my 2017 MBP 15" with the same game version and same OS. I hear a clicking noise from the speakers synchronized with a clearly visible frame-drop every second. I didn't however face other popping issues on youtube/iTunes/Logic as seen in other reports, so no clue what's wrong there... Any ideas?
2) When turning off the automatic graphics switch mode the first time, the device lagged badly for a few seconds, as if the Radeon had a hangover when waking up. Since I never experienced any lag before while switching between the graphics cards, I found this behavior to be rather odd.
I'm torn on what to do next. On the one hand, after reading all the reports on the web I somewhat start to doubt the hardware defect theory. On the other hand, looking at the other 2 experienced oddities in combination with the crashes, I can't really shake the feeling of there being a hardware problem. I just want to avoid sending in a brand new device to get a prophylactic motherboard swap for no reason, which may lead to other issues down the road. I hope this makes sense... :)
Any advice is highly appreciated.