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

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UBUNTU 15.10: after most recent kernel update to 4.2.0-17.21, wi-fi, USB mouse and brightness not working

After most recent kernel update to 4.2.0-17.21 in Ubuntu 15.10, wi-fi, USB mouse and brightness are not working. I used Advanced Options in GRUB to start system normally. However, how to fix this ...
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how can one debug the keyboard kernel driver?

I have a Lenovo Thinkpad Yoga S3 (spring 2015). it has a rather strange bug when it comes to the internal keyboard: When waking up from suspen, the internal keyboard no longer reacts -- some times. ...
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806 views

Updated to 15.10 and now VMware workstation 11 will not start

I ran into this problem after upgrading to ubuntu 15.10. When I start vmware it pops up saying that it need to compile several modules into the running kernel. It failed with a error message saying ...
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178 views

revert kernel version change

I'm trying to intstall virtualbox-dkms, and trying the usual sudo apt-get- install virtualbox-dkms yields: Preparing to unpack .../virtualbox-dkms_4.3.10-dfsg-1ubuntu5_all.deb ... Unpacking ...
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80 views

ubuntu 14.04 lts doesn't boot since 3.13.0-64

This is a DELL inspiron 3551, with Ubuntu 14.04 lts 64 bits preinstalled processor: Intel® Pentium(R) CPU N3540 @ 2.16GHz × 4. Quickly after system update, it starts to crash when booting. I don't ...
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28 views

Use different drivers for two identical peripherals

I have two NICs that are the same type (plain old VirtualBox NICs). Is it possible to use a different driver for each one? From what I've seen when I load a module it picks up on all the supported ...
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1k views

Vmware Workstation 11 Virtual Ethernet Kernel update fails on Ubuntu 15.10

I'd appreciate some insight. I've tried Charles's workaround here: VMware won't work after Ubuntu Upgrade which passes the first hurdle and I get a Kernel upgrade message, but then it fails to ...
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239 views

How to compile kernel with custom version string?

I'm trying to compile a stock kernel for ubuntu 15.10 (4.2.0), but would like the kernel version to be different, with minor text addition in the end so it doesn't conflict with the original one. To ...
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55 views

how to enable 1MB dma-kmalloc

I'm running a ubuntu 15.10 VM and testing code that will allocate 1MB dma buffers. However, from the /proc/slabinfo, the max that can be allocated is 8K dma-kmalloc-8192 0 0 8192 4 ...
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177 views

DPKG Issues. Hangs, and won't let me run any commands

Ubuntu randomlly decided to install this huge batch of updates today and I let it. It froze however midway. I gave it an extra hour with no progress at all so I killed it and forced a hard restart. ...
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107 views

Android rom and kernel build error

I am trying android building but I have error I cant solve it. help please I am using ubuntu 15.04 compile error
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435 views

Video recording device detected but can't use it

I have a StarTech SVID2USB23 device like this: https://sgcdn.startech.com/005329/media/sets/SVID2USB23_Manual/SVID2USB23.pdf In LSUSB it appears as this: Bus 003 Device 007: ID eb1a:5051 eMPIA ...
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44 views

Kernel panic…/vmlinuz not found loop. I'm stuck for a month!

I have been stuck, and tried for so long now, I need help! I don't know what I did then I am unable to boot into my ubuntu 14.04, installed on partition SDB8! I have reinstalled grub2 many times now, ...
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232 views

Missing “asm/types.h” or “asm-generic/types.h” : fatal error : No such file or directory

I am trying to compile my sdk(switching development kit) code on ubuntu 14.04. When I am doing make, I am getting the following error : /lib/modules/3.13.0-32-generic/build/include/uapi/linux/types....
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171 views

Ubuntu 14.04 VM kernel panics once every ~5-9 days on Hyper-V

I have an x64 Ubuntu 14.04.3 LTS virtual machine running the hardware monitoring and status software Nagios. The VM seems to be kernel panicking once every 5-9 days. I am unable to pin down the cause. ...
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35 views

GRUB Multiboot and Kernel Updates

A couple of days ago, I installed Xubuntu 14.04 alongside my Ubuntu 14.04 system. I had to do a little work to get Ubuntu 14.04 to be the default system, but that's resolved now. The thing is, if I ...
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No sound anymore on Lubuntu 14.04.3, Kernel 3.13.0-63

The current version of Lubuntu (kernel 3.13.0-63 in use now) produces no sound anymore. Neither Audacious, Gnome player, YouTube or CD player produce sound. My installation CD (Lubuntu distribution 14....
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66 views

kernel boot takes too long, probably asus makro key usb keyboard related

I would like to solve my long boot issue. 3.19.0-28-generic #30-Ubuntu SMP Mon Aug 31 15:52:51 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux I think it might be related to ASUS ASUS ROG Macrokey keyboard ...
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217 views

end Kernel Panic (14.04)

I'm new to Ubuntu, so you'll have to forgive my naivety. I was watching TV online and my laptop froze (Screen darkened, nothing responding), I left it for around 5 minutes hoping it'd sort itself out....
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167 views

How do I start my Laptop with root partition on lvm2 thin pool

My Laptop is configured as dual boot system with Ubuntu 14.04 (and windows 8.1). Lately I replaced the dedicated root and swap partitions with a lvm2 partition (VG (Volume Group) LinuxBereich) ...
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181 views

Kernel Panic - not syncing: VFS Unable to mount Root is on unknown-block(0,0)

I received a Kernel Panic error after updating Ubuntu server. After passing the GRUB menu, I received the following error. I have been hosting a mediawiki on that server that is not backed up. I do ...
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kernel building errors investigation

Tried to built kernel using this simple guide: https://wiki.ubuntu.com/Kernel/BuildYourOwnKernel I've got only one "...all.deb" file instead of 3 files. How can I track errors? Are there any logs of ...
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70 views

linux-image-3.19.-.26-generic broken

For reference, I'm on Xubuntu Vivid, installed on a ASUS E451LD (aka a PL451LD). It has an Intel/Nvidia Optimus GPU setup. If I boot off a 3.19.0-26.28 kernel, it sticks on a blank screen or on the ...
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266 views

Full downgrade from 14.04.3 lts-vivid stack to standard 14.04 lts stack

the issue is well represented by the title. How can I completely revert the 14.04.3 lts-vivid stack (3.19 kernel + updated graphics stack) to the standard 14.04.0/1 trusty stack? I know that the most ...
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242 views

Newly installed system won't boot, how to disable k10temp from GRUB2?

I just installed Ubuntu GNOME (via the minimal install, as no other Live CDs would boot) on a desktop computer which has an AMD Triple-code Phenom 8450 processor. The issue is, that after one reboot ...
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2k views

NUC 5CPYH + Intel 3165 + Ubuntu 15.04 or 14.04. Here's how.

This page describes how to get the Intel 3165 wireless card working on Ubuntu 15.04 on the Intel NUC 5CPYH. To fix this problem: Check the linux kernel you are using $ uname -r Even if you've ...
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63 views

unable to update to the latest kernel

I had troubles with kernels and asked a question on how to remove them Can I delete my most recent kernels With the help I received I did manage to delete the offending kernels. After that I ...
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269 views

syslog and kern.log multiple GB in size filled with pcieport error messages

After getting a disk usage warning, I noticed my syslog and kern.log were multiple GBs in size (20GB each). I then used this askubuntu post to clear the log files but today I find that they have again ...
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110 views

Prevent Immediate Resume after Suspend

I am running Ubuntu 14.04 on a Dell I7352-3111SLV 13 inch touchscreen. As per this post I've fixed my touchpad, But my machine now resumes from suspend as soon as it finishes the power down cycle. So,...
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44 views

no suitable module for running kernel found after update

after some update of 12.04 at start up, black screen shows up with things written on it and there's an error. a red star and then "no suitable module for running kernel found". I have only one option ...
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66 views

Onboard does not work with touch

Onboard (the Ubuntu default onscreen keyboard) is working fine basically, but it does not work with touch. But this is what I need it for. I just can't press any button. I can press Onboard buttons ...
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89 views

Surface Pro 1 with Ubuntu 15.04 Problem; You need to load the kernel first

I've installed Ubuntu successfully then told me to reboot, but I'm stuck in the screen where I had to choose four options: 1) Try Ubuntu without installing 2) Install Ubuntu 3) OEM Install 4) Check ...
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204 views

DRM not initializing eDP LCD Display

I'm having an issue with Ubuntu on a small-form-factor PC I built. It is based on the ASUS Q87T and the Intel G3258 CPU. Everything works great with an external (DP, HDMI, VGA) display, but I cannot ...
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33 views

audit tool is unable to capture the bash(write operations) events

I have the following configuration in my system OS : ubuntu 14.04 Kernel version : 3.13.0-32-generic I have following rules in my audit.rules file. -w /etc/ -p wa -k ...
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371 views

Ubuntu Mate (raspberry) upgrade kernel Version

I have the latest Ubuntu-MATE image on my raspberry. I configured rpi-update from github but it is not upgrading kernel version although it says that it has upgraded it. However the latest kernel ...
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229 views

virtualbox shared folder - kernel headers not found

I have read those questions: Why can't I access a shared folder from within my Virtualbox machine? and Error: kernel headers not found. (But they are in place) The second question equals mine, ...
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146 views

How To Prevent Zoom in Chromium

Condition: Artifact zoom CTRL-+/- by keyboard and touchpad Support: prevention discussed first time in 2009 here about How to turn off Zoom on Chrome Proposal: Prevent Zoom by touchpad/keyboard in the ...
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65 views

Setup cross-compile env. in eclipse for Kernel API

I'm cross compiling for a beaglebone black (that is running debian) on ubuntu and I want to make Kernel API calls from module.h, kmod.h, or firmware.h and those don't appear to be in the arm-linux-...
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195 views

Apt-get & software updates failure: Unmet dependencies with kernel package, no diskspace?

Using ubuntu 14.04 LTS with GNOME Classic desktop i can't install the latest upgrades. Most important update is ubuntu base linux kernel updates. Error message: Check if you are using third party ...
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1k views

Upgrading kernel, Warning message

When I upgraded the kernel to the current version 3.19.0-22-generic I got the following message: Jul 7 13:18:49 ubuntu kernel: [ 717.001387] Jul 7 13:18:49 ubuntu kernel: [ 717.001387] >>&...
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219 views

Techwell tw6805a driver for ubuntu 14.04 LTS running 3.13.0-55-generic kernel

I am using ubuntu server 14.04 LTS and have a 16 channel DVR card installed, unfortunately it is a no-name-brand, however I have identified 8 techwell tw8605a chips on the board. I followed the ...
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38 views

Reinstall an official package when custom one has overwritten it

I recently installed the Debian packages produced by running make deb-pkg to compile my own version of the Ubuntu kernel. I had given the kernel the release version 3.19.0-21-secure. All of the ...
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695 views

How to upgrade the kernel of Xubuntu 15.04 Live CD to latest 4.1/4.0.6 version?

I am trying to upgrade the kernel of Xubuntu 15.04 AMD64 live CD to the latest version available (4.1/4.0.6) so that I can try and install the same on hitherto unsupported hardware. I am using the ...
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44 views

Debugging 14.04 freeze with syslog

Since upgrading to 14.04 a few weeks back, I have been experiencing a problem wherein Ubuntu will freeze (i.e. the entire UI stops working, can't drop down runlevels, etc.), and the only solution is ...
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Linux Kernel acting weirdly

This probably is a bug, but I am not sure, that's why I'm posting this here. I am running Ubuntu 14.04 using Linux Kernel 3.13.0-55-generic on Dual Boot with Win 8.1 on a Lenovo Z510. Lately the ...
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1k views

Failed to start Load Kernel Modules after Nvidia 352.21 installation failure

After booting up Ubuntu 15.04 I get the following message: [FAILED] Failed to start Load Kernel Modules. See "systemctl status systemd-modules-load.service" for details. At terminal I get the ...
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89 views

MacBook Pro 11,1 Magsafe connector gets hot

I've installed Ubuntu 14.04 on my Macbook Pro 11,1 and updated the kernel to version 3.19.8. I have a problem now. If I plug in the Magsafe connector the connector and the surroundings on the macbook ...
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42 views

add/delete ubuntu specific folder or file right click context using bash

I want to change the right click context menu of ubuntu specific folder using bash script. When bash script executes, it first create a file or folder having only two right click context menu option. ...
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60 views

Access ubuntu terminal/sudo after pressing ctrl c and restaring while upgrading system

I tried to upgrade my system from 14.10 to 15.04 and while I was installing it asked me if I want to replace config file. I tried to compare, then didn't know how to exit Ipressed ctrl c and then I ...
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163 views

I'm I being spied on?

so lets say am worried that I'm being spied on! So I regularly check on my log files. the kern.log reading is not making me feel calm at all... is like my camera is on and sending inputs somewhere I ...