When closing the lid while plugged in: [IGFB][PANIC] Power well hardware state update failed

Stacktrace & system info: https://hastebin.com/ekayagijef.txt

Hey everyone,

I have a Dell Inspiron 7586. It has an i7-8565U and Intel UHD 620 Whiskey Lake graphics. Closing the laptop works fine when it's unplugged, but when I close it while it's plugged in, I often get the described kernel panic when opening it up and pressing the power button to wake it.

It seems to have something to do with the graphics frame buffer - any ideas?

submitted by /u/superl2
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