I'm running archlinux on a Dell XPS15 9550 and I connect it to a TB16
thunderbolt dock. Connected to the dock I have a 4k external display and
a USB logitech transmitter for my wireless keyboard and mouse.
The TB16 dock is a finicky beast and doesn't currently work 100% with
linux. However, if I follow a strict set of steps every time I plug it
in and suspend/resume the laptop everything works reasonably well and I
have an acceptable work environment. For the record the correct set of
steps is: plug in dock, then connect dock to still asleep laptop, then
resume laptop.
Also, to help things along I automatically unload/reload module
'xhci_pci' on suspend/resume.
Things were running smoothly with kernel 4.12.3, with only little
hiccups here and there until I upgraded to kernel 4.12.4.
I have suffered at least 3 kernel panics since yesterday. The kernel
panics happened right after resume or when switching the video output
from the external display to the laptop display.
I have efi_pstore module loaded so I was able to capture the panic logs
in each of these 3 occasions. The logs from one of the kernel panics can
be found here: https://bugzilla.kernel.org/attachment.cgi?id=257781
The logs from the other kernel panics are pretty much identical.
After the 3rd panic I have downgraded back to 4.12.3 and so far I
haven't had any issues.
NOTE: I filed a bug report about this:
https://bugzilla.kernel.org/show_bug.cgi?id=196559
Jose
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