Thanks for your feedback. Joseph, the issue started after updating the kernel to 4.4.0-128. The version 4.4.0-127 is the last one working correctly. The issue started as a sound driver problem (drivers were somehow completely gone), but when I first experienced it I could still login. Afterwards it started freezing at the login screen. This corroborates the comment from Oleksii.
For testing the latest upstream kernel, I followed the procedure described in the page you provided. Unfortunately, while installing the kernel files, I had an issue with a dependency from libssl1.1 which is not installed, and as far as I can see not available for Ubuntu 16.04. Do you have any suggestion for solving this, other than upgrading (which I would avoid for the time being)? Sorry, as I already mentioned it is my first contribution to a bug report. -- 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/1779893 Title: my laptop freezes at the login screen Status in linux package in Ubuntu: Incomplete Bug description: I apologise in advance, this is my first report, therefore I am not sure if everything has been automatically collected, or if I need to provide further information than a short explanation of the problem. After updating the kernel at 4.4.0-128 on Ubuntu 16.04, first I had massive problems with the sound drivers. Then they disappeared (by themselves I would say, I had many tests but I don't think I screwed up anything serious) and, instead, now my sistem freezes at login screen. Sometimes it gives me the message that the wireless has been found. The mouse is available but I cannot interact with the screen, and also the clock is frozen. I have to brutally switch off the laptop for rebooting. A further kernel update to 4.4.0-130 didn't help, either. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-130-generic 4.4.0-130.156 ProcVersionSignature: Ubuntu 4.4.0-130.156-generic 4.4.134 Uname: Linux 4.4.0-130-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.18 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: luigi 2426 F.... pulseaudio CurrentDesktop: Unity Date: Tue Jul 3 17:31:25 2018 HibernationDevice: RESUME=UUID=c24386f7-c59c-494d-b58d-abced7cc343c InstallationDate: Installed on 2017-02-28 (489 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 8087:0a2a Intel Corp. Bus 001 Device 003: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller Bus 001 Device 002: ID 174f:2408 Syntek Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: LENOVO 80TV ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-130-generic.efi.signed root=UUID=e98922f5-e948-421c-8d5f-2d7e1ad4dfe1 ro recovery nomodeset RelatedPackageVersions: linux-restricted-modules-4.4.0-130-generic N/A linux-backports-modules-4.4.0-130-generic N/A linux-firmware 1.157.19 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/10/2016 dmi.bios.vendor: LENOVO dmi.bios.version: 3JCN23WW dmi.board.asset.tag: NO Asset Tag dmi.board.name: Torronto 5C2 dmi.board.vendor: LENOVO dmi.board.version: SDK0J40709 WIN dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo ideapad 310-15IKB dmi.modalias: dmi:bvnLENOVO:bvr3JCN23WW:bd11/10/2016:svnLENOVO:pn80TV:pvrLenovoideapad310-15IKB:rvnLENOVO:rnTorronto5C2:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrLenovoideapad310-15IKB: dmi.product.name: 80TV dmi.product.version: Lenovo ideapad 310-15IKB dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1779893/+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
