Comment 30 for bug 1723994

Revision history for this message
Kai-Heng Feng (kaihengfeng) wrote : Re: [Bug 1723994] Re: Keyboard plugged in to monitor USB hub does not work at password prompt

> On 26 Oct 2017, at 11:20 PM, Dan Watkins <email address hidden> wrote:
>
> On Thu, Oct 26, 2017 at 03:09:12PM -0000, Kai-Heng Feng wrote:
>> They should work, at least at initramfs stage. You can use the keyboard
>> to decrypt rootfs proves that.
>
> I can use the keyboard to decrypt the rootfs if it's plugged in after
> boot. If it's plugged in before boot, it doesn't work.
>
> (It also continues to work on _reboot_; it's just on a power cycle that
> it doesn't.)
>
>> Does your lsusb in #11 captured when the keyboards didn't work?
>
> I'm not sure I understand the question; could you clarify?

I’d like to see the dmesg when the issue happens, because the dmesg here says both keyboards were detected (and should work).

So I guess the dmesg here was collected when you reboot instead of cold boot.

>
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> https://bugs.launchpad.net/bugs/1723994
>
> Title:
> Keyboard plugged in to monitor USB hub does not work at password
> prompt
>
> Status in linux package in Ubuntu:
> Confirmed
>
> Bug description:
> I have my external keyboard plugged in to my monitor's USB hub.
> Unless I unplug and replug the USB cable that connects the monitor hub
> to my machine, I can't use my keyboard on boot.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 17.10
> Package: cryptsetup 2:1.7.3-4ubuntu1
> ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
> Uname: Linux 4.13.0-16-generic x86_64
> ApportVersion: 2.20.7-0ubuntu3
> Architecture: amd64
> Date: Mon Oct 16 11:45:42 2017
> EcryptfsInUse: Yes
> InstallationDate: Installed on 2014-09-04 (1138 days ago)
> InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
> SourcePackage: cryptsetup
> UpgradeStatus: Upgraded to artful on 2016-12-05 (315 days ago)
> cmdline: BOOT_IMAGE=/vmlinuz-4.13.0-16-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash nomdmonddf nomdmonisw vt.handoff=7
> crypttab:
> sda3_crypt UUID=dc873bc3-22f0-491d-9f5b-50d322f31987 none luks,discard
> #cryptswap1 UUID=f44f685a-f520-4e81-b35a-0b9cba44a8a9 /dev/urandom swap,cipher=aes-cbc-essiv:sha256
> ---
> ApportVersion: 2.20.7-0ubuntu3
> Architecture: amd64
> AudioDevicesInUse:
> USER PID ACCESS COMMAND
> /dev/snd/controlC1: daniel 9156 F.... pulseaudio
> /dev/snd/controlC0: daniel 9010 F.... volumeicon
> daniel 9156 F.... pulseaudio
> DistroRelease: Ubuntu 17.10
> EcryptfsInUse: Yes
> InstallationDate: Installed on 2014-09-04 (1145 days ago)
> InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
> MachineType: LENOVO 20ANCTO1WW
> Package: linux (not installed)
> ProcFB: 0 inteldrmfb
> ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-16-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash nomdmonddf nomdmonisw vt.handoff=7
> ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
> RelatedPackageVersions:
> linux-restricted-modules-4.13.0-16-generic N/A
> linux-backports-modules-4.13.0-16-generic N/A
> linux-firmware 1.169
> Tags: artful
> Uname: Linux 4.13.0-16-generic x86_64
> UpgradeStatus: Upgraded to artful on 2016-12-05 (321 days ago)
> UserGroups: adm audio cdrom dip disk docker fuse libvirt libvirtd lpadmin lxd plugdev sambashare sbuild sudo
> _MarkForUpload: True
> dmi.bios.date: 05/21/2014
> dmi.bios.vendor: LENOVO
> dmi.bios.version: GLET70WW (2.24 )
> dmi.board.asset.tag: Not Available
> dmi.board.name: 20ANCTO1WW
> dmi.board.vendor: LENOVO
> dmi.board.version: SDK0E50512 STD
> dmi.chassis.asset.tag: No Asset Information
> dmi.chassis.type: 10
> dmi.chassis.vendor: LENOVO
> dmi.chassis.version: Not Available
> dmi.modalias: dmi:bvnLENOVO:bvrGLET70WW(2.24):bd05/21/2014:svnLENOVO:pn20ANCTO1WW:pvrThinkPadT440p:rvnLENOVO:rn20ANCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNotAvailable:
> dmi.product.family: ThinkPad T440p
> dmi.product.name: 20ANCTO1WW
> dmi.product.version: ThinkPad T440p
> dmi.sys.vendor: LENOVO
>
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