On Wed, Oct 09, 2019 at 03:50:25PM +0800, AceLan Kao wrote: > Right, the issue happens after we backport some ICL thunderbolt > patches to 5.3 kernel. Does it happen only with backported patches or does it also happen with the mainline? > There is a new BIOS v1.0.13 on dell website, but it requires windows > to upgrade it, I'll try it later. OK, thanks.