The solution works (when it says to turn off pc in my case is to unplug power supply too) and on a new boot keyboard is recognized.īut it's not a definitive solution, it may happen that it get not recognized again. Testing and searching online I found this: If I connect to the usb port an usb hub (I have the Ultra Mini Hub USB 2.0 from Amazon) and I connect to it the keyboard it works at boot now, very strange.
I have to say that I have tested with other two keyboards and I don't have this problem, my current keyboard is a Finco Majestouch 2. If I boot on ubuntu it doesn't work on the next shutdown/boot. usb usb1-port7: unable to enumerate USB deviceĪ very strange fact is that if instead of booting linux I boot on windows (plug/unplug keyboard on grub to change system to boot) the keyboard works as I said after a plug/unplug but after I shudown windows system it works on the next boot too! this is very strange! usb 1-7: device not accepting address 5, error -71 usb 1-7: Device not responding to setup address. usb 1-7: new full-speed USB device number 5 using xhci_hcd I have a dual boot system linux(ubuntu) and windows so at boot it starts grub and linux by default on linux boot I read these errors: usb 1-7: device not accepting address 4, error -71 If I plug/unplug the keyboard it works and it keep working across reboots but not if I shutdown the system. I have an MSI motherboard, pressing delete, or F1 before booting the system or other keys doesn't have any effect. Just as test neither the capsock button works (I don't see the light on/off) so the keyboard is completely off. I tried to change usb port too but it's the same.
LINUX LITE KEYBOARD PROBLEM UPDATE
I didn't add or change any hardware component, no update or whatever, it's the same as yesterday as it worked as no problems (and of the past days too). I can't use it, I have to plug/unplug to make it to work. Suddenly without any reason my usb keyboard stopped working at boot.
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