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Bug#697619: USB keyboard no longer works at initramfs passphrase prompt



On Sat, 2013-01-19 at 16:16 -0800, Josh Triplett wrote:
> On Sat, Jan 19, 2013 at 10:37:43PM +0000, Ben Hutchings wrote:
> > On Mon, 2013-01-07 at 09:23 -0800, Josh Triplett wrote:
> > > Package: src:linux
> > > Version: 3.7.1-1~experimental.1
> > > Severity: grave
> > > 
> > > The 3.7 kernel in experimental no longer accepts input from a USB
> > > keyboard at the initramfs passphrase prompt for an encrypted root.  This
> > > works fine with the 3.6 kernel currently in latest unstable, which I
> > > booted to make this report.
> > [...]
> > 
> > Please provide:
> > 
> > 1. The boot messages when displayed booting 3.7 without the 'quiet'
> > kernel parameter (GRUB's recovery mode works for this).  You could use a
> > serial console or photograph(s) of the screen.
> 
> The attached photo shows the last screenful.  I've also attached the
> full dmesg from that same boot, obtained after typing in the passphrase
> on the laptop's built-in keyboard.

Ah, I didn't get that you had an alternate keyboard.

[...]
> [    1.555303] usb 1-1.3: new low-speed USB device number 4 using xhci_hcd
> [    1.585030] usb 1-1.3: New USB device found, idVendor=17ef, idProduct=6009
> [    1.585129] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> [    1.585202] usb 1-1.3: Product: ThinkPad USB Keyboard with TrackPoint
> [    1.585263] usb 1-1.3: Manufacturer: Lite-On Technology Corp.

Keyboard is detected.

> [    1.585475] usb 1-1.3: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes
> [    1.585553] usb 1-1.3: ep 0x82 - rounding interval to 64 microframes, ep desc says 80 microframes

This looks suspicious.

[...]
> [   67.355998] input: Lite-On Technology Corp. ThinkPad USB Keyboard with TrackPoint as /devices/pci0000:00/0000:00:1c.6/0000:0e:00.0/usb1/1-1/1-1.3/1-1.3:1.0/input/input4
> [   67.356067] lenovo_tpkbd 0003:17EF:6009.0001: input,hidraw0: USB HID v1.10 Keyboard [Lite-On Technology Corp. ThinkPad USB Keyboard with TrackPoint] on usb-0000:0e:00.0-1.3/input0
> [   67.356223] Bluetooth: SCO socket layer initialized
> [   67.359576] input: Lite-On Technology Corp. ThinkPad USB Keyboard with TrackPoint as /devices/pci0000:00/0000:00:1c.6/0000:0e:00.0/usb1/1-1/1-1.3/1-1.3:1.1/input/input5
> [   67.360128] lenovo_tpkbd 0003:17EF:6009.0002: input,hiddev0,hidraw1: USB HID v1.10 Mouse [Lite-On Technology Corp. ThinkPad USB Keyboard with TrackPoint] on usb-0000:0e:00.0-1.3/input1
[...]

Could you test with the keyboard plugged into a non-USB 3 port, assuming
there is one?  Usually the USB 3 ports are distinguished by some blue
colouration.

Ben.

-- 
Ben Hutchings
Never attribute to conspiracy what can adequately be explained by stupidity.

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