Aikawa Takuya, the next step is to fully reverse commit bisect from kernel 3.13 to 3.19 in order to identify the last bad commit, followed immediately by the first good one. Once this commit has been identified, then it may be reviewed as a candidate for backporting into your release. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection#How_do_I_reverse_bisect_the_upstream_kernel.3F ?
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 Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs ** Tags removed: bios-outdated-504 ** Tags added: latest-bios-504 needs-reverse-bisect ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1416849 Title: Booted into blank screen after the security update Status in linux package in Ubuntu: Incomplete Bug description: I am using Ubuntu 14.04 on ASUS X200MA laptop. After applying the security update to the linux kernel, the boot process failed. Summary: Grub load, empty purple screen appears and disappears, then the backlight turns off... it DOES NOT turn on and the log in drum sound rings. It is just like the former bug reported below: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/919350 Now I am running on the previous kernel 3.13.0-44 #73-Ubuntu (with selecting from Grub menu), and have no problem on booting. I appreciate your help and cooperation. Thanks. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-45-generic 3.13.0-45.74 ProcVersionSignature: Ubuntu 3.13.0-44.73-generic 3.13.11-ckt12 Uname: Linux 3.13.0-44-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: aikawatakuya 1859 F.... pulseaudio CurrentDesktop: Unity Date: Mon Feb 2 00:18:17 2015 HibernationDevice: RESUME=UUID=1d9c88a7-1473-4d4e-917d-46fc21e38a98 InstallationDate: Installed on 2014-11-09 (84 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: ASUSTeK COMPUTER INC. X200MA ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-44-generic.efi.signed root=UUID=7ac07a5f-b038-40ac-a6a1-e0f4ccbb69c3 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-44-generic N/A linux-backports-modules-3.13.0-44-generic N/A linux-firmware 1.127.11 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/04/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: X200MA.500 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: X200MA dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX200MA.500:bd05/04/2014:svnASUSTeKCOMPUTERINC.:pnX200MA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX200MA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.name: X200MA dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1416849/+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
