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[bug #47636] usb_keyboard does not like Logitech gaming keyboard

From: Ben Klein
Subject: [bug #47636] usb_keyboard does not like Logitech gaming keyboard
Date: Thu, 07 Apr 2016 07:00:15 +0000
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.110 Safari/537.36


                 Summary: usb_keyboard does not like Logitech gaming keyboard
                 Project: GNU GRUB
            Submitted by: man_in_shack
            Submitted on: Thu 07 Apr 2016 07:00:14 GMT
                Category: Booting
                Severity: Major
                Priority: 5 - Normal
              Item Group: Hardware-specific
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: Git master
         Reproducibility: Every Time
         Planned Release: None



commit f4d35d49e32c29183b3492da18ea480d91716efe

Using nativedisk or loading ohci for USB keyboard support when my Logitech
G510 gaming keyboard is plugged in causes some problem with the USB

Steps to reproduce, while G510 is plugged in:
> nativedisk
> insmod ahci
> set prefix=(ahci3,msdos1)
> insmod ohci

The symptoms are that the G510 is not fully initialised (should display the
G510 logo on the built-in screen), the Grub does not accept input from the
keyboard, and Linux hangs on USB device discovery with repeated message:
usb 4-3: device descriptor read/64, error -110

My generic USB keyboard does function correctly after loading nativedisk or

Boot eventually continues once the USB subsystem gives up on trying to
identify and enumerate the keyboard.

After rebooting, either warm or cold, BIOS POST also runs slowly. The only
remedy is to unplug the G510 or power off the PSU.

If Linux is booted using biosdisk (without loading ohci), or the keyboard is
unplugged on boot and plugged in after the kernel loads, then the G510
keyboard works correctly.

It may be worth noting that lsusb -v shows the G510 is a USB2.0 device, not
USB1.x as most keyboards are.


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