On Fri, Jul 21, 2017 at 05:14:16PM +0200, Gia Thuan Lam wrote: > To honorable kernel developers, > > I am writing to report a kernel bug I have with my USB keyboard. I am > using Linux kernel 4.10.0-29-generic, but this problem exists in older > kernels as well at least since kernel 4.10.0-26. I am using Ubuntu > Gnome 17.04. Does a "modern" kernel work better? 4.10 is kind of old and we can'd do anything about distro-specific kernels, sorry. Have you filed a bug with your distro and had them look at this? > After closing the lid, I click the power button to turn the screen on, > but the USB keyboard suddenly stops working. I have two keyboards, one > is built in my laptop (working normally) Dell Inspiron 15 3000 Series > and a mechanical keyboard connected by USB port (this is the one not > working). The latter stops working for a long time. When I try to > unplug and plug in again, it also takes longer than usual to work. > > Reproduction method: Turn off the screen (close the lid, click the > power button...) then turn on by clicking the power button. > > Consequence: The keyboard connected by USB will not work while the > mouse is still working. > > This is the first time I am reporting a bug, if you need any more > information. Please just tell me. Kernel log messages would be great to have, that might show the problem. You can get that by running 'dmesg' from a command line. thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
