Created attachment 253031 [details] kernel-config_linux-4.9.4-gentoo Recently while upgrading kernel on Gentoo system I started experiencing USB freeze on computer startup. The behavior is as following: The mouse is not moving and also the lights are switched off. When I start randomly clicking and moving, it first starts lights up, then the clicks starts working, so there appear context menu on right click and I can open it with left click. About 3-5 seconds later the mouse starts moving again. But sometimes when I stop using it, it again freezes, I don't experience this when computer runs for many hours, I only experience this about first 3-20 minutes after startup. I found relevant issue on ubuntu bugs: https://bugs.launchpad.net/ubuntu/+source/gnome-software/+bug/1578317?comments=all I am not 100% sure, but this started with either 4.9 or already with 4.8, I definitely didn't have this issue on 4.4 kernel. I have following kernels: drwxr-xr-x 22 root root 4096 Nov 13 01:06 linux-4.4.26-gentoo - this one was stable drwxr-xr-x 26 root root 4096 Dec 3 20:48 linux-4.8.6-gentoo - this one I am not 100% sure if affected drwxr-xr-x 26 root root 4096 Jan 11 19:51 linux-4.9.0-gentoo - this one is affected drwxr-xr-x 26 root root 4096 Jan 22 16:26 linux-4.9.4-gentoo - this one is affected I usually use make oldconfig. I will attach here my config. My system is Dell XPS 15 9550 -> https://wiki.gentoo.org/wiki/Dell_XPS_15_9550 NOTE: Sometimes while switching the USB port (1 have 2 ports) help, sometimes doesn't :-)