Hi! I've been struggling with this issues for a while with no success so far.
I have notebook Dell E6430 on docking station with external monitor and keyboard + mouse. I have tried to switch to the kernel 4.x the other day, and have two issues. 1. After successful boot, I've noticed, that buttons above the touchpad[1] stopped working. Tried to debug the thing, but they do nothing even under xev or in showkey - seems like they dead. Didn't find anything interesting by searching the net. 2. This one is more annoying. After boot to the new shiny 4.x kernel, devices connected via the usb seems to have aggressive power safe mode. For example - if I typing for a while everything is fine, if I stop for a couple of seconds, and then start to type, for approximately 2 seconds there is no response from the device, and after that i can type again. Note, that during those 2s no buffering is done, so whatever I'm typing in this short period, is lost. Same goes to the mouse movement and buttons. Needless to say, that both of the issues are non-existent on 3.18.x series… I'll appreciate any hint. [1] http://ibin.co/2ZBIg3Ilkmxd -- -^- _ something is grinding the emptiness: _ /O)_\// Mystical Sun - 15 Billion Years of Aliens (_(|__(_(_) grf.
