for questions concerning Ubuntu's kernel, including compiling and questions relating to modules

learn more… | top users | synonyms (4)

1
vote
1answer
465 views

Screen dim buttons not working on Toshiba Satellite

Since I have upgraded from the last 11.10 to 12.04 the screen dim buttons ceased to function. As I see this is due to the replacement of the 3.0 kernel with the 3.2 starting the system with the 3.0.19 ...
1
vote
1answer
1k views

intel atom getting too hot

I own an Asus 1215N which is getting very hot Intel Atom 525D dual core ION 2 (geforce 220 + GMA 3150) 4 GB RAM Ubuntu 12.04 it hits 86 C at idle. Some times (at load or turned on > 1 hour) it shuts ...
1
vote
1answer
398 views

How do I set up a server with a realtime kernel?

I have installed ubuntu server 11.04 on a machine with size 4GB. As, the ubuntu server 11.04 does not support real time kernel by default, I need compile a real time kernel on ubuntu desktop 11.04 ...
0
votes
1answer
8 views

What does “acpi_pm” mean?

While researching clock source kernel parameters, I came across the following terms: tsc hpet acpi_pm If someone could tell me what acpi_pm is as the other two I found googling around.
0
votes
1answer
158 views

Upgrading to 3.18 kernel causes wireless not to work

So I got the 3.18 kernel working on my system (I can boot into Unity now: hooray!). Unfortunately, this seems to have broken my wifi. Wired ethernet is still working, but Network Manager isnt ...
0
votes
1answer
20 views

Local version during kernel build broken

I'm trying to build a custom variant of the 3.13.0-43 kernel on Ubuntu 14.04. Following the normal procedure (directions posted at https://wiki.ubuntu.com/Kernel/BuildYourOwnKernel) is not working for ...
0
votes
1answer
16 views

Kernel Panic on xubuntu toughbook cf-19

I'm on a toughbook cf 19 xubuntu and I have a kernel panic about 10 times a day. Do you know what can be the problem?
0
votes
1answer
30 views

Trouble loading kernel 3.18

I received 3.18 in apt update but it does not show up on recovery list and I cant seem to get the missing parts. How do I get 3.18 to load?
0
votes
1answer
28 views

radeon dpm: why my power state 0 has high values which are not aligned with dmesg?

# cat /sys/kernel/debug/dri/64/radeon_pm_info uvd vclk: 0 dclk: 0 power level 0 sclk: 37500 mclk: 150000 vddc: 950 vddci: 875 pcie gen: 3 # cat /sys/class/drm/card0/device/power_dpm_state ...
0
votes
1answer
58 views

“Kernal panic - not syncing: Timeout synchronizing machine check over CPUs” Every time I boot from a live USB

I have been stuck on this for months but I built a new pc and every time I try and run linux off a live usb I get this after picking try ubuntu in the grub menu Sorry for cutting some of the ends ...
0
votes
1answer
57 views

How to remove kernel?

I have installed two kernel version 3.10.48 and 3.17.6 for project. As I am not requiring 3.10.48 any more, I wanted to remove that version as it is taking up almost 10GB of my disk space. How should ...
0
votes
1answer
58 views

Where can i find linux 3.8.11 kernel image in order to build wacom drivers for Samsung Chromebook 2

New to Ubuntu/Linux, so please bare with me. My setup: Samsung Chromebook 2 -> running Ubuntu via crouton (trusty with KDE). Im in the process of installing the Wacom Intuos drawing tablet, and i ...
0
votes
1answer
70 views

Right way to completely clean up old kernels in terminal

I have been going through various questions about how to clean up old Linux kernels. They all seem to have different answers and they are old, so someone is bound to say the question is too old and ...
0
votes
1answer
327 views

AMD Omega drivers don't work with kernel 3.17.6 on Trusty?

I just installed new fglrx drivers on Ubuntu 14.04. New AMD drivers are distribution-specific, so downloaded them. Since it says they re compatible with kernel up to 3.17 version on release notes, ...
0
votes
1answer
167 views

Cups job stuck at: processing since …“Waiting for printer to become available.”

When I reboot, a queued print job will get printed, after that jobs don't print with the following message: processing since "Waiting for printer to become available." Also, when I run the vanilla ...
0
votes
1answer
48 views

Accidentaly deleted initrd and vmlinuz

Yesterday I suddenly deleted initrd and vmlinuz files in boot folder. Now I can't get in my Debian system, because GRUB can't find vmlinuz and initrd. I tried to generate new initrd image but I can't ...
0
votes
1answer
18 views

problem new with ubuntu and i cannot install

I have neu cd ubuntu 12.04. With installation was everything ok and after restart i have error unable to monut root vfs kernel panic and cannot open root file. I tried to install this again but not ...
0
votes
1answer
31 views

After changing kernel , kernel crash is not working

I have changed the kernel in Ubuntu 12.04. After this, if I gave a kernel crash the memory configurations are getting changed and dump file is not created.. It is getting changed from 4GB to 109MB. ...
0
votes
1answer
166 views

How do I install driver for Radeon Mobility HD 3650?

I was trying to install driver for my graphics card, I'm using Ubuntu 14.10 and when I install driver from support.amd.com log file says that i don't have kernel headers (version.h file) in ...
0
votes
1answer
76 views

L1 + L2 cache hardware information with lscpu different to information from Intel & Windows

My CPU is an INTEL Celeron N2930 Bay Trail-M 1.83GHZ to (2.16GHZ Turbo) I get by typing lscpu in Terminal a different value of L1 + L2 Cache (Hardware Information) in comparison to the Intel + ...
0
votes
1answer
87 views

Unity gone after upgrading 14.10 to latest 3.16 kernel

After upgrading 14.10 to the latest 3.16 kernel today, my Unity GUI is messed up. I was able to create a folder and open it, but if I navigate to the /bin folder, right-click on bash, then select Run, ...
0
votes
1answer
37 views

How can I find most stable and newest kernel edition for Ubuntu?

I want to choose a newest and most stable version Linux kernel for Ubuntu. Is it newest longterm version in http://kernel.org version(and download equivalent version in ...
0
votes
1answer
126 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 ...
0
votes
1answer
181 views

Unable to Install 14.1 on Dell Studio 1747 Laptop, Intel i7, 10GB RAM - Kernel error BUG: Soft Lockup

Update: I have now attempted to install 14.01, 13.1, and 12.04.5 with the same result. I have been attempting to install Ubuntu 14.1 on a Dell Studio 1747 laptop with a Intel i7 Core Processor. Have ...
0
votes
1answer
31 views

Is there a way to integrate Node.js into the kernel core so that the system has this node running as a module.?

I want to integrate node.js into the kernel as a module. So that i could develop a common html+js+css app as a desktop app. How can this be done ? It would be nice if ubuntu had this feature.
0
votes
1answer
58 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
1answer
75 views

virtualbox not recognising existing machine in ubuntu 14.04 LTS

I have install windows xp in Ubuntu host.I was working fine but suddenly when I restarted my computer virtualbox manager does not recognise my machine.I had reinstall,updated kernel and tried to ...
0
votes
1answer
65 views

how to modify kernel to activate SPI-devices on 12.04 Pandaboard?

There are many examples online for modifying and building kernel, but non of them would realy work! I want to activate SPI-Devices to work with. It needs also GPIO-Interrupt for triggering ...
0
votes
1answer
68 views

ubuntu 14.04 not working after kernel update how can I save my ubuntu system?

ubuntu 14.04 not working after kernel update how can I save my ubuntu system? yesterday , when I updated the ubuntu 14.04 and its kernel core , it asked me for a reboot! and then I cant access to my ...
0
votes
1answer
15 views

Toshiba 2800-200 lubuntu installation failure

So I have an old toshiba running win ME, and I want to use it again. I thought I could just install lubuntu with a pen drive. The problem is when I choose the installation mode, it freezes until i ...
0
votes
1answer
308 views

Unable to boot after update to linux-image-3.13.0-39-generic

Running Ubuntu 12.04 LTS on Intel-based computer. I ran the update package for a new release Linux and it seemed to be successful, but when rebooting, I was unable to boot. I booted to a previous ...
0
votes
1answer
233 views

Gave up waiting for root device ubuntu 14.10

I have recently installed Ubuntu 14.10 (kernel v3.16.0-23) I am new to Linux environment and learning how to compile-install-boot new kernel image. I downloaded kernel 3.17.2. Compiled and built the ...
0
votes
1answer
272 views

Install 64-bit kernel in 32-bit Ubuntu

I want to use an application that is only available in 64-bit, but my Ubuntu installation is 32-bit. The application is proprietary, so I can't even recompile it for 32-bit. I've read that I should ...
0
votes
1answer
15 views

Dynamic Right sizing for TCP implementation in linux

Is Dynamic Right Sizing(DRS) implemented in linux kernel(3.4 and above) by default?.In this link(http://public.lanl.gov/radiant/software/drs.html) patches for kernel 2.4.23 and 2.4.8 are available but ...
0
votes
1answer
237 views

I can't upgrade kernel on Ubuntu Server 14.04.1

today I made a mistake and now I don't know how can I fix it. I updated the kernel using dist-upgrade and I installed Linux 3.13.0-39-generic on my server. I had Linux 3.13.0-37-generic. The thing ...
0
votes
1answer
138 views

Ubuntu (Kubuntu) not loading - problem with ati catalyst proprietary drivers

I have problem - upgrade kubuntu 14.04 to 14.10 and after this os not loading. I try with fresh install of ubuntu, after formating but problem is same. I see on driver notes this, may be this is ...
0
votes
1answer
169 views

Linux kernel discrepancy 3.11 and 14.04

I am trying to execute this command: $ sudo apt-get install build-essential linux-headers-$(uname -r) Reading package lists... Done Building dependency tree Reading state information... Done ...
0
votes
1answer
257 views

Kubuntu 14.10 kernel panic

I downloaded and burned the Kubuntu 14.10 amd64 iso. My laptop was running Kubuntu 14.04 amd64; it is a 4-year-old Dell Studio 17. When booting from the DVD, there is a kernel panic, unable to mount ...
0
votes
1answer
203 views

Problem compiling JOS - undefined reference to `__udivdi3' and `__umoddi3'

I'm taking a class on operating systems this semester and have ran into a problem while setting everything up. I cloned the git repository for the JOS operating system and would like to try to ...
0
votes
1answer
38 views

sporadically i get kernel panics Ubuntu 14.04 64 bit on my samsung

I have a samsung 7 chronos laptop with Ubuntu 14.04 64 bit. every so often just out of the blue it'll crash and I get a "kernel panic - not syncing; Fatal exception in interrupt" I have noticed that ...
0
votes
1answer
455 views

I upgraded my 14.04 from kernel 3.13.0-36-generic to 3.13.0-37-generic and the system hangs

Everything works fine with kernel 3.13.0-36. After updating to the new kernel and rebooting, the video looks like it might not be right and the system hangs after logging in. Used grub to boot back ...
0
votes
1answer
39 views

“BUG: scheduling while atomic: nc/3622/0x00000101”

I have noticed the below stack trace shows up in /var/log/kern.log. Running Ubuntu 14.04 on kernel 3.13.0-32-generic. This issue does not happen frequently. [ 410.671752] netfilter: module loaded [ ...
0
votes
1answer
584 views

AMD legacy driver installation failed due to missing kernel headers

I am trying to install amd-driver-installer-catalyst-13.1-legacy-linux-x86.x86_64 on Ubuntu 14.04, and failing due missing /lib/modules/3.13.0-37-generic/build/include/linux/version.h. I tried to ...
0
votes
1answer
495 views

correct kernel source path

I'm trying to install cuda6.5 using the .run file on an amazon aws gpu instance. I'm getting this error. I'm not sure what the kernel source path is. I did install it with apt-get install linux-source ...
0
votes
1answer
276 views

No sound after kernel update / ubuntu 14.04 x64

I upgraded a couple of days ago to the latest kernel: uname -a Linux tirith 3.13.0-37-generic #64-Ubuntu SMP Mon Sep 22 21:28:38 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux Hadn't use the box much, but ...
0
votes
1answer
220 views

USB Bluetooth Adapter Not Working in Ubuntu 14.04

I have a USB Bluetooth adapter (0a12:0001) that has some problems under Trusty. It works about 50% of the time, and if I unplug it and reconnect it, then it works again. I know this is a known issue. ...
0
votes
1answer
20 views

Problem loading ubuntu

I bought a used laptop with the hard drive wiped clean. Tried to load 14.04 got a message that kernel has to be loaded first. Reloaded xp and tried again, same thing?
0
votes
1answer
21 views

Kernel Panic, Can I get specific info from this screenshot I have?

here are the specs for my desktop: Linux Ubuntu 14.04.1 LTS & Windows 7 HP pavilion p6000, AMD64 Here´s the problem details: Kernel panic error (Ubuntu) and Blue Screen of Death (Windows) ...
0
votes
1answer
28 views

How to know where in /dev/ is a USB keyboard loaded?

To be precise, when you plug in a USB storage device, it is loaded in sd something, but where is a usb keyboard loaded in /dev/?
0
votes
1answer
186 views

ubuntu doesn't boot with initrd.img-3.13.0-35-generic and initrd.img-3.13.0-36-generic

I'm not able to boot with initrd.img-3.13.0-35-generic and initrd.img-3.13.0-35-generic - just drops into a busybox shell with the regular generic message. I though that was something kernel related ...