keyboard doesn't work in initrd for 4.4.0-5.20

[Bas Zoetekouw]

When booting kernel 4.4.0-5.20, the keyboard doesn't work during boot, so I can't input the disk encryption key.

This works fine with earlier kernels (for example linux-image-4.2.0-29-generic, which is also installed on the same machine).

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-4.4.0-5-generic 4.4.0-5.20
ProcVersionSignature: Ubuntu 4.2.0-27.32-generic 4.2.8-ckt1
Uname: Linux 4.2.0-27-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: bas 2247 F.... pulseaudio
CurrentDesktop: KDE
Date: Tue Feb 16 21:25:24 2016
HibernationDevice: RESUME=UUID=24b12189-1150-4973-9948-751fcccbdacc
InstallationDate: Installed on 2015-12-26 (51 days ago)
InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
MachineType: Apple Inc. MacBookPro10,2
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-27-generic.efi.signed root=/dev/mapper/hostname-root ro libata.force=noncq rootflags=data=writeback acpi_osi=Darwin resume=/dev/mapper/hostname-swap_1 quiet splash
RelatedPackageVersions:
 linux-restricted-modules-4.2.0-27-generic N/A
 linux-backports-modules-4.2.0-27-generic N/A
 linux-firmware 1.155
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/13/2015
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP102.88Z.0106.B0A.1509130955
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-AFD8A9D944EA4843
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro10,2
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-AFD8A9D944EA4843
dmi.modalias: dmi:bvnAppleInc.:bvrMBP102.88Z.0106.B0A.1509130955:bd09/13/2015:svnAppleInc.:pnMacBookPro10,2:pvr1.0:rvnAppleInc.:rnMac-AFD8A9D944EA4843:rvrMacBookPro10,2:cvnAppleInc.:ct10:cvrMac-AFD8A9D944EA4843:
dmi.product.name: MacBookPro10,2
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.5 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.5-rc4-wily/

[Bas Zoetekouw (baszoetekouw)]

Just tested this with 4.5.0-040500rc4-generic, which works fine.