apport information ** Attachment added: "UdevDb.txt" https://bugs.launchpad.net/bugs/1878574/+attachment/5371423/+files/UdevDb.txt
-- 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/1878574 Title: very slow boot with new kernel 5.3.0-51 Status in linux package in Ubuntu: Confirmed Bug description: I already reported the but using "ubuntu-bug linux" but could see nowhere to tell you what the problem actually was. In summary it is relatively new system, 18.04.4LTS 64bit and Maté 1.20.1 dual-booting with Windows 10 v.1909, built on a Gigabyte Aorus B450M mainboard, Ryzen 5 3400G with Radeon Vega Graphics × 8, Kingston A2000 M2 main drive and a supplementary 4TB data drive. A wired connexion to BT Hub 6 via BT Powerline is used and gives no trouble on any other system. The system started with kernel 5.3.0-46 generic and was fine for a few months, booting in a few seconds. A couple of days ago the kernel upgraded itself to 5.3.0-51 generic and boot immediately became a minute or more. Reverting to kernel 5.3.0-46 generic restores the fast boot time. I can continue like this for a while but my main fear is that when the LTS update to 20.04 arrives the new kernel will contain the bug and reversion to 5.3.0-46 will no longer be possible. I attach several files, tarred because you do not seem to provide the facility to attach more then one file. There are a copy of the current fstab, the output of hwinfo (taken with kernel v.51) and for each of the two kernels the data asked for on the Ubuntu website. --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.14 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: david 2069 F.... pulseaudio /dev/snd/controlC0: david 2069 F.... pulseaudio CurrentDesktop: MATE DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2020-01-05 (129 days ago) InstallationMedia: Ubuntu-MATE 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) IwConfig: eno1 no wireless extensions. lo no wireless extensions. MachineType: Gigabyte Technology Co., Ltd. B450 AORUS M Package: linux (not installed) ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-51-generic root=UUID=ea9bdbd1-0964-411e-b2c3-45fad2b77eae ro quiet splash fastboot vt.handoff=1 ProcVersionSignature: Ubuntu 5.3.0-51.44~18.04.2-generic 5.3.18 RelatedPackageVersions: linux-restricted-modules-5.3.0-51-generic N/A linux-backports-modules-5.3.0-51-generic N/A linux-firmware 1.173.18 RfKill: Tags: bionic Uname: Linux 5.3.0-51-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 07/22/2019 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F41 dmi.board.asset.tag: Default string dmi.board.name: B450 AORUS M dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF41:bd07/22/2019:svnGigabyteTechnologyCo.,Ltd.:pnB450AORUSM:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnB450AORUSM:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: Default string dmi.product.name: B450 AORUS M dmi.product.sku: Default string dmi.product.version: Default string dmi.sys.vendor: Gigabyte Technology Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1878574/+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
