Questions tagged [kernel]

Linux is the name of the kernel used in Ubuntu as well as other GNU/Linux operating systems. Use this tag for questions related to upgrading and installing kernels, compiling, patches, and kernel modules.

Filter by
Sorted by
Tagged with
0 votes
0 answers
48 views

Dell Lattitude 5511 with Ubuntu 23.10 suspend not working

Unfortunately, I upgraded my Ubuntu version from 22.04 to 23.10 and got an issue with a laptop suspension. After clicking on the "Suspend" button screen goes black, the laptop fan stops for ...
0 votes
0 answers
161 views

amdgpu not loading

I ran 2 updates: Upgrade: alsa-ucm-conf:amd64 (1.2.6.3-1ubuntu1.9, 1.2.6.3-1ubuntu1.10), dnsmasq-base:amd64 (2.86-1.1ubuntu0.4, 2.86-1.1ubuntu0.5), libssl3:amd64 (3.0.2-0ubuntu1.12, 3.0.2-0ubuntu1.13),...
305 votes
2 answers
327k views

What is hardware enablement (HWE)?

I see the linux-hwe-generic package as part of the kernels you can install in Ubuntu. What is hardware enablement (HWE)?
0 votes
0 answers
157 views

Failed to load zfs modules after kernel update with secure boot enabled, dkms seems fine

Ubuntu 23.10 After kernel update to 6.5.0-15, system fails to load zfs modules on boot. I've had this problem before and solved it by dpkg-reconfiguring zfs-dkms. This time it seems to be already ...
0 votes
1 answer
353 views

removing dkms r8168 from dkms three

my problem was my network adapter doesn't come up when running on newer kernel : 6.5.0-15-generic. the problem was solved using this answer. my next problem is, every time i run an update, it keep ...
1 vote
1 answer
5k views

lm-sensors ubuntu 14.04 core voltages

I am trying to measure the core voltages of my cpu. I installed the lm-sensors, I ran the sensors-detect and I reply YES to all of the question. At the end of the sensors-detect I get: To load ...
0 votes
0 answers
69 views

Kernel panic - not synching: Attempted to kill init

After updating vscode, glibc and stdlibc++ was asked to be updated, however when I am trying to take this operation, an error occurred: no matter which command I use(e.g. ls, pwd), I get the same ...
0 votes
0 answers
129 views

AX211 wifi is not working on Ubuntu 20.04

I have tried several answers in here, but my ax211 is still not working... What I've got CPU: 13th Gen. Intel Core i7 13700H GPU: NVIDIA GeForce RTX4050 RAM: 16GB LPDDR5 Wireless lan: AX211 OS: ...
2 votes
1 answer
1k views

Issue when uninstalling dattobd-dkms

Configurazione di dattobd-dkms (0.10.15-29.1ubuntu20.04)... Removing old dattobd-0.10.15 DKMS files... ------------------------------ Deleting module version: 0.10.15 completely from the DKMS tree. --...
0 votes
1 answer
7k views

Gallium 0.4 on llvmpipe (LLVM 3.8, 128 bits) driver issue Ubuntu 14.04

I am using Ubuntu 14.04 (previously linux kernel 4.2).Today I got a security update message and allowed it and now my linux kernel version is 4.4 and when I opened Details option from settings,it ...
2 votes
1 answer
1k views

Many "UBSAN: array-index-out-of-bounds" about bcache at boot time (kernel 6.5.0)

I installed a btrfs filesystem relying on two devices (for btrfs raid1) that are mappers (cryptsetup luksOpen) of bcache devices (NVME + HDD). This btrfs filesystem seems to work perfectly. However, ...
0 votes
0 answers
42 views

How to resolve ZFS userspace tools and kernel module mismatch caused by HWE automatic updates

I am on Ubuntu LTS 20.04 with kernel version 5.15.0-91-generic. I find that my ZFS user utils are version 0.8.3 and my ZFS kernel module is 2.1.5. As I understand it, not only is it risky having the ...
3 votes
2 answers
315 views

Livepatch -- plans to support official HWE kernels?

According to an answer to this question, livepatch supports only the release kernels for a given LTS release. This is understandable, in order to make development and support a possible task, but I'...
0 votes
0 answers
59 views

Test if livepatch is working

I enabled livepatch on machine and I would like to test if it will work as expected. But there is no update to test it. Can I install some older kernel to test or find a way to make sure it works? ...
42 votes
3 answers
63k views

Compiling kernel 5.11.11 and later

In Ubuntu 20.04 LTS, I was compiling kernel 5.11.11 after adding a new system call. I also get this with later Ubuntu versions and kernels. During the execution of make command I got this error: make[...
6 votes
3 answers
9k views

How to get OpenCL support for navi10 GPUs from AMD?

For my AMD Radeon RX 5700XT I tried amdgpu-pro drivers (v19.50) installation on modern (kernel 5.3) Ubuntu 18.04.3 as driver claims it's supported but compilation failed with C++ errors. Tried the ...
0 votes
1 answer
2k views

sysctl: setting key "net.ipv4.conf.all.accept_source_route": Invalid argument While loading kernel modules for kubernetes

Following the indications found here: https://www.linuxtechi.com/install-kubernetes-on-ubuntu-22-04/ I'm trying to install Kubernetes cluster on Ubuntu 22.04 On Step 2 : Load the kernel module I'm ...
0 votes
0 answers
63 views

xhci_pci slows down applications on start

I recently installed kubuntu 22.04.3 LTS on a ASUS laptop with AMD Ryzen 9 7845HX and RTX 4060 GPU, and unfortunately many applications are extremely slow to start. With top I noticed that there are ...
1 vote
1 answer
2k views

Dual Booting Ubuntu, Kernel Panic - not syncing: Attempted to kill init! exitcode=0x00000009

I know this question has already been asked. But im installing the ubuntu for the first time and i dont have a 'Grub' to change into another kernel or whatever. Im trying to install 18.4.3 alonside ...
0 votes
0 answers
166 views

Kernel 6.7.2 issues

this is mine first time compile a kernel and I have this error make[3]: *** No hay ninguna regla para construir el objetivo 'debian/canonical-certs.pem', necesario para 'certs/x509_certificate_list'. ...
0 votes
0 answers
19 views

22.4.3 text-to-video handover at boot failing (black screen); can you help me troubleshoot and correct please?

Background I have reinstalled 22.04.3, as I want a vanilla system before trying to learn about various enterprise applications. I have been running Ubuntu since the initial release of 22.04; this is ...
1 vote
1 answer
6k views

How to install Open Virtual Switch

I want to install the Open Virtual Switch. How can I do so? I read the openvswitch.org page but that was not well explained and I did not understand it, perhaps because I am new to Linux. Can any one ...
0 votes
0 answers
116 views

I encountered an error while executing "sudo apt upgrade" on the Ubuntu command line

Recently, when I was performing system updates on Ubuntu, I found that the terminal always reported errors, but it did not affect the normal installation of other software. However, I still want to ...
0 votes
0 answers
89 views

Can I safely edit /boot/config* file?

On my Ubuntu 22.04.3 the full file name is /boot/config-6.5.0-14-generic. Can I safely edit CONFIG_PREEMPT and CONFIG_HZ entries in this file? If yes, will setting: CONFIG_PREEMPT=yes CONFIG_HZ_1000=...
10 votes
2 answers
42k views

Downgrade kernel for ubuntu 22.04 LTS

I am currently on ubuntu 22.04 LTS release which comes with kernel version 5.15.0-27-generic. I want to downgrade to kernel version 5.13 because of touchpad problem in my lenovo thinkbook. Is it ...
0 votes
0 answers
30 views

I am facing some shutdown issue

I have installed Ubuntu 22.04 and my current version of kernel is 6.2.0 - 26 - generic and if I try to shut down my operating system it takes 20 to 30 minutes to shutdown and I go on bad it tell me ...
0 votes
1 answer
225 views

Unable to load the driver. Error opening device /dev/scap0

OS: Ubuntu 22.04.3 LTS (Jammy Jellyfish) Kernel: 6.2.0-1018-azure I followed the sysdig setup guide for linux but am not able to figure out how to resolve this. Post installation, if I run sysdig or ...
2 votes
2 answers
5k views

MPTCP installation and configuration on Ubuntu 14.04.2 LTS

I'm trying to install MPTCP (Multipath TCP) on my Ubuntu but I have a problem : I follow instructions under this link : http://multipath-tcp.org/pmwiki.php/Users/AptRepository I have no problem on ...
4 votes
1 answer
4k views

Error while booting Ubuntu 18.04 LTS with Kernel Version 4.18.8

[ 0.077858] ACPI Error: No pointer back to namespace node in package (____ptrval____) (20180531/dsargs-303) [ 0.077858] ACPI Error: No pointer back to namespace node in package (____ptrval____) ...
1 vote
0 answers
2k views

How do I install/get the libata kernel module to work?

Edit 1: Running Ubuntu 18.04 here. I'm trying to set /sys/module/libata/parameters/allow_tpm, but to no avail. modinfo libata tells me: modinfo: ERROR: Module libata not found. This is after running ...
2 votes
1 answer
194 views

Troubleshooting and resolving FPS drop in games

My desktop running Ubuntu 22.04.3 LTS is having FPS issues lately. On games from both ,Steam and GoG, my FPS have dropped significantly. Table Top Simulator was at least 60 FPS now its 10 in the menu ...
4 votes
1 answer
483 views

Where can I find Arkham kernels

In this interview, Mark Shuttleworth mentions Arkham kernels. I have tried finding these with Google searches, searching launchpad.net, searching ubuntu.com, but I have not been able to find any ...
0 votes
1 answer
11k views

network interfaces not running

I am trying to get my LAN port up and running. The available interfaces on my system are : user@user-NUC7i5BNH:~$ cat /etc/udev/rules.d/70-persistent-net.rules # This file was automatically ...
2 votes
1 answer
379 views

VirtualBox 7.0.14 with kernel 6.5.0-14 on ThinkPad T450s causes kernel oopses from modules

First of all, on my desktop running Ubuntu 22.04 with 6.5.0-14 kernel and VirtualBox 7.0.14 everything works fine. No error messages. But if I try the same combination on my laptop ThinkPad T450s I ...
4 votes
0 answers
85 views

Not able to start Ubuntu 20.04 after fresh install

I have installed Ubuntu 20.04 by erasing earlier windows 10. Installation was successful but after restarting its giving me this error - kernel panic - not syncing: VFS: Unable to mount root fs on ...
0 votes
0 answers
78 views

kernel 6.2.0-39 can't find nvme drive that 6.2.0-37 boots to

(See edit a bottom of page) Ubuntu 22.04 6.2.0-37 boots just fine 6.2.0-39 fails before the grub menu, message: nvme doesn't exist. grub info from sata boot drive grub.cfg menuentry "Ubuntu, with ...
-1 votes
1 answer
26 views

sata drive not updating to current kernel. nvme drive has 3 choices for kernel

my computer has a sata drive sda that it boots from but the system runs on a nvme drive which is selected by the grub on the sata. the nvme is regularly updated and I watch the logwatch files for any ...
1 vote
1 answer
9k views

libkmod: Error ../libkmod/libkmod-config.c:686 kmod_config_parse: /etc/modprobe./blacklist-nouveau.conf line 5 ignoring bad line starting with 'alia'

libkmod: Error ../libkmod/libkmod-config.c:686 kmod_config_parse: /etc/modprobe./blacklist-nouveau.conf line 5 ignoring bad line starting with 'alia' I started getting this recently then today it ...
-1 votes
1 answer
114 views

How to isolate cpu and ram for specific task. I already use "isolcpus" in the Grub setting to limit my CPU, but it does not get desired result

The main issue is to calculate the execution time of my algorithm, which is run in Python, and get a fixed execution time for each execution of the algorithm on the same data. I use the same data on ...
-1 votes
1 answer
90 views

Remapped hard drive to new PC

I have a PC that was remapped so as to keep the same setup. An alternative was converting to a VM. The ethernet networking does not work and I cannot connect to anything. When lshw -C network is run, ...
2 votes
1 answer
2k views

Issues after ubuntu 22.04.3 upgraded to linux 6.5.0-14

I have 2 issues since being upgraded to linux 6.5.0-14 from 6.2.0-39: #1: I'm unable to compile the modules needed for vmware workstation player 17. Version 17.0.2 build-21581411. At first it could ...
2 votes
1 answer
7k views

Hostapd Failed to update rate sets in kernel module

I'm getting this error launching hostapd with minimal conf Failed to update rate sets in kernel module I've just installed Ubuntu-GNOME 13.04. When I was using Ubuntu 12.04 did not receive this kind ...
1 vote
2 answers
2k views

apt-get upgrade/install (anything) exited with error

after last apt-get update I am no longer able to install anything. Reading package lists... Done Building dependency tree... Done Reading state information... Done Calculating upgrade... Done The ...
0 votes
0 answers
637 views

XUbuntu 20.04 Network Device disconnecting every few minutes

I am hardwired to a network. My computer is losing internet connection every ~2 minutes for ~2 minutes. My friend's computer, hardwired to the same network, is not having any outages. Contents of /...
0 votes
0 answers
211 views

Is my kernel broken and if so, how do I unbreak it?

So I've been having a lot of trouble with my homelab server for the last couple of weeks. I originally installed Ubuntu 20.04 LTS and then foolishly decided to dist-upgrade to 22.04 LTS, which is ...
0 votes
0 answers
73 views

Problem re-installing virtualbox-dkms package! error processing package virtualbox-dkms [duplicate]

When I tried to start a new session of my virtual machine, I got an error saying: Failed to open a session for the virtual machine miniWin7. And another message saying: The VirtualBox Linux kernel ...
1 vote
2 answers
12k views

DKMS build failing without meaningful error

I'm trying to enable a kernel module I've got from a device vendor to work with DKMS. I can successfully build the module and manually install and enable it. But when using DKMS a get an error that ...
0 votes
0 answers
118 views

Can’t load ubuntu 22.04

I have been using Ubuntu 22.04 for a month. I don't know why, but suddenly this happened and now I can't open Ubuntu. Please help, I am struggling since 2 days. This is my log: 0.105342] ×86/cpu: SGX ...
3 votes
1 answer
6k views

installation error for brostrend ac3 wifi adapter

I am trying to install a brostrend ac3 1200 mbps wifi adapter on my desktop and keep running into problems during the installation. I am trying to install the drivers but they aren't available on ...
11 votes
1 answer
10k views

Ubuntu 16.04 broken kernel packages won't let me install or remove anything with apt-get

Whenever I try to do anything with apt-get whether it's installing, removing, purging, update, upgrade I always get hit with the same error. ses@ses-VirtualBox:~/Downloads$ sudo apt-get install ssh ...