Would it be possible for you to test the latest upstream stable kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.4 stable 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'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-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/v4.4.113 ** Changed in: linux (Ubuntu) Importance: Undecided => High ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Tags added: needs-bisect -- 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/1744979 Title: grub_efi_secure_boot signal at the beginning of the boot process Status in linux package in Ubuntu: Incomplete Bug description: The previous kernel (4.4.0-109) was running without any problems, without triggering an error. After today's kernel update, the machine can not be started unless you select "run" the selected kernel from the advanced settings menu item. The first message always: grub_efi_secure_boot Ubuntu 4.4.0-112.135-generic 4.4.98 LSB Version: core-9.20160110ubuntu0.2-ia32:core-9.20160110ubuntu0.2-noarch:security-9.20160110ubuntu0.2-ia32:security-9.20160110ubuntu0.2-noarch Distributor ID: Ubuntu Description: Ubuntu 16.04.3 LTS Release: 16.04 Codename: xenial Intel® Core™ i5-3330 CPU @ 3.00GHz × 4 GeForce GT 630/PCIe/SSE2 system 32 bit Please help... I chose 16.04 LTS because I wanted to have a long, calm and safe use ... --- ApportVersion: 2.20.1-0ubuntu2.15 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: csola48 1454 F.... pulseaudio /dev/snd/controlC2: csola48 1454 F.... pulseaudio /dev/snd/controlC0: csola48 1454 F.... pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 16.04 HibernationDevice: RESUME=UUID=6c8c77a4-d4d3-4e31-a038-13930e1abfd0 InstallationDate: Installed on 2016-11-08 (441 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release i386 (20160420.1) IwConfig: lo no wireless extensions. enp4s0 no wireless extensions. MachineType: Gigabyte Technology Co., Ltd. To be filled by O.E.M. NonfreeKernelModules: nvidia_drm nvidia_modeset nvidia Package: linux (not installed) ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-112-generic root=UUID=4cbb9ed4-c9ab-4ee3-8eb5-2473af0d2ae7 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.4.0-112.135-generic 4.4.98 RelatedPackageVersions: linux-restricted-modules-4.4.0-112-generic N/A linux-backports-modules-4.4.0-112-generic N/A linux-firmware 1.157.14 RfKill: Tags: xenial Uname: Linux 4.4.0-112-generic i686 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/21/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F7 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: H77-DS3H dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF7:bd08/21/2012:svnGigabyteTechnologyCo.,Ltd.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnH77-DS3H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To be filled by O.E.M. dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: Gigabyte Technology Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1744979/+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