On Thu, 21 Feb 2019, Oliver Neukum wrote: > On Do, 2019-02-21 at 09:45 +0000, Jorge Augusto wrote: > > Dear Oliver Neukum, > > Thank you for your reply > > > > I can't tell you if is a regression because is the first time I try to > > use Linux in this Laptop > > Yesterday I tried with kernel 4.10.0-38-generic and gave same error > > Hi, > > either I am dense or something is wrong. There is no error report in > this log. And you are using irqpoll. There is something really wrong > with your machine if you need that. The error report in the log is here: [ 146.879194] ohci-pci 0000:00:12.0: frame counter not updating; disabled [ 146.879197] ohci-pci 0000:00:12.0: HC died; cleaning up Jorge: This error indicates that the USB host controller stopped working for no apparent reason. It may be a bug in the hardware. Alan Stern