Here dmesg output. I have tried to do steps as you explained.
[0.00] microcode: microcode updated early to revision 0x20, date =
2018-04-10
[0.00] Linux version 4.19.0-041900rc7-generic (kernel@kathleen) (gcc
version 8.2.0 (Ubuntu 8.2.0-7ubuntu1)) #201810071631 SMP Sun Oct 7
Can you please write step by step how to do that. As I understand
usbcore.dyndbg=+p I should add to boot options. But how to get dmesg?
Just writing dmesg in bash terminal?
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I have installed linux-image-4.19-rc7 along with linux-modules but with
no result. The problem still exists.
** Tags added: kernel-bug-exists-upstream
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Public bug reported:
I have a Toshiba L855 laptop at home. When I connect any usb device to a
USB3 port before boot then no other USB device doesn't work and even
detected after boot. This concern even USB mouse and keyboard. But when
I reconnect all USB devices to laptop then they started to
