Another T480 user who has noticed the same problem. Per advice given,
I've just enabled "BIOS Thunderbolt Assist". I will report back if I
notice the problem persists.
On 9/19/21 4:50 AM, Daniel Wilkins wrote:
I've ran into this on my T480, it seems most consistently triggered by power
cycles caused by running out of battery. The bug's existed for quite a few
years (I think I first noticed it in 2019.) If I recall correctly I've
posted it to the list a couple of times but I don't think any concrete answers
ever emerged; your report is more thorough than mine were though.
I do remember that it never happened on my T430, but that's quite the
hardware gap.
