descending3rds, the next step is to fully commit bisect from kernel 3.5 to 3.13 in order to identify the last good kernel commit, followed immediately by the first bad one. This will allow for a more expedited analysis of the root cause of your issue. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection ?
Please note, finding adjacent kernel versions is not fully commit bisecting. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1440446 Title: Keyboard does not respond/scrambled video Status in linux package in Ubuntu: Incomplete Bug description: Description: Ubuntu 14.04.2 LTS Release: 14.04 Kernel 3.13.0-48-generic I expected to be apple to boot to the password prompt for my encrypted root (and beyond) with correct graphics. Instead I found that my keyboard was not recognised after grub, so I am not able to decrypt my root or login More detailed explanation: I have Ubuntu installed on my 17'' core-duo intel imac, with an encrypted root partition. Version 12.04 with kernel 3.5.0-17-generic worked ok, but I updated to the LTS version 14.04. The system now freezes before asking for my encryption password when booting (I am using EFI with grub2) with my old kernel (3.5.0-17-generic) and with no args on the kernel command line. If I put nomodeset the boot progresses to the encryption password and I can successfully login, however the video is completely scrambled (I literally cannot make out anything). Having tried many ways to fix the video, I tried the latest kernel (3.13.0-48-generic). In this case the boot gets to the password and the graphics appear to be ok, but the keyboard/mouse do not respond. Again I tried many fixes, unsuccesfully. I installed the extras so as to have usbhid, mac_hid etc, and found that the behaviour now reverted precisely to that outlined above for 3.5.0-17-generic; that is scrambled graphics but successful login (with nomodeset), and freezing before reaching the password prompt (without nomodeset). I tried manually adding only the hid modules to my initrd.img-3.13.0-48-generic built prior to install of extra, but found graphics again ok but still no keyboard ! This report was made via a ssh session after booting with the scrambled video. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-48-generic 3.13.0-48.80 ProcVersionSignature: Ubuntu 3.13.0-48.80-generic 3.13.11-ckt16 Uname: Linux 3.13.0-48-generic i686 ApportVersion: 2.14.1-0ubuntu3.8 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: lightdm 1678 F.... pulseaudio admin 2808 F.... pulseaudio Date: Sun Apr 5 10:33:58 2015 HibernationDevice: RESUME=UUID=b24198c5-2cbc-45f2-8535-71569a8d69fa InstallationDate: Installed on 2013-07-28 (616 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.2) IwConfig: lo no wireless extensions. eth2 no wireless extensions. MachineType: Apple Computer, Inc. iMac4,1 ProcEnviron: LANGUAGE=en_AU:en TERM=xterm-color PATH=(custom, no user) LANG=en_AU.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-48-generic root=/dev/mapper/ubuntu-root nomodeset loglevel=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.13.0-48-generic N/A linux-backports-modules-3.13.0-48-generic N/A linux-firmware 1.127.11 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to trusty on 2015-03-16 (19 days ago) dmi.bios.date: 10/12/06 dmi.bios.vendor: Apple Computer, Inc. dmi.bios.version: IM41.88Z.0055.B08.0610121350 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Mac-F42786C8 dmi.board.vendor: Apple Computer, Inc. dmi.board.version: PVT dmi.chassis.asset.tag: Asset Tag dmi.chassis.type: 13 dmi.chassis.vendor: Apple Computer, Inc. dmi.chassis.version: Mac-F42786C8 dmi.modalias: dmi:bvnAppleComputer,Inc.:bvrIM41.88Z.0055.B08.0610121350:bd10/12/06:svnAppleComputer,Inc.:pniMac4,1:pvr1.0:rvnAppleComputer,Inc.:rnMac-F42786C8:rvrPVT:cvnAppleComputer,Inc.:ct13:cvrMac-F42786C8: dmi.product.name: iMac4,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Computer, Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1440446/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
