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

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iBasso D14 “Bushmaster” not working as an USB DAC after kernel upgrade

I purchased an iBasso D14 a couple months ago. It's all fine, the device is working on Windows and Android but it suddenly stopped working here on Ubuntu 15.10 (x64) after a kernel upgrade. uname -a ...
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1answer
49 views

How to find out what Linux is using to control my hardware

I want to find out what is Linux using to control my hardware. I guess modules and drivers and maybe they are the same. I got this answer : How do I find out which driver a piece of hardware is ...
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1answer
41 views

Can i have ubuntu 15.10 with linux kernel of 3.14

I have Ubuntu 15.10 installed in my system with kernel of 4.2, I want to know can i change the kernel of it to 3.14 without any serious problem such as hardware or graphically problems or any ...
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0answers
81 views

Ubuntu 15.10: laptop reboots after suspend

When I open the lid after suspending my laptop, the laptop reboots instead of waking up normally. However, this only happens when it's on battery. This only happened today after Ubuntu performed some ...
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0answers
16 views

Unable to gerenate a coredump from an abort

I'm debugging a version of Ubuntu (kernel version 3.10.24-rt22) that is running an application that gets an abort (SIGABRT). How do I generate a coredump to determine the cause? I have tried the ...
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2answers
327 views

does rolling back the kernel in Ubuntu compromise security

I recently updated my kernel, and noticed that it was affecting my graphics drivers. As a quick fix I rolled back the driver , but would like to know if this affects my system security in any way? ...
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2answers
214 views

Which Kernel should we use on Ubuntu 14.04 LTS?

I am currently using 14.04.3 LTS and running 3.13.0-79-generic (released 19 February 2016) on a notebook. Is this the latest kernel?, and as a rule of thumb should we be using the latest kernel? ...
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1answer
103 views

Intermittent video glitches - Ubuntu 14.04

I recently started witnessing small graphics glitches with my Ubuntu 14.04 installation which has been running fine for a while with no graphics issues. The glitches usually happen at most bottom area ...
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1answer
32 views

Ubuntu Kernel swap

I have been having a lot of trouble getting Ubuntu to install on my mother board. Fedora however does install. I will use Fedora if I have to but I prefer Ubuntu for many reasons. I was wondering if ...
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0answers
14 views

Backup failing due to Kernel Panic/Task Delay in Ubuntu 14.04 LTS

I have an Ubuntu 14.04 LTS I5-based system that hosts three VM's and has been running happily for about a year. I recently set up a USB drive to back up the VM drives and wrote a simple script to shut ...
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2answers
101 views

Can I use a 12.04 kernel (v3.2) with Ubuntu 14.04 LTS instead of v3.13/4.2?

As refer to my earlier problems with 14.04, Ethernet Connection randomly disconnects after transmit queue 0 timed out I was having trouble using Ethernet in 14.04, and this problem still persists ...
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24 views

PXE boot gives kernel panic

I made a live image from my Ubuntu 14.04.4 LTS with Systemback. I can boot the image from USB but cant get it to work from PXE boot. The DHCP and tftp boot is working fine with Debian image. What am i ...
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1answer
45 views

How do I get started building a personal assistant on Ubuntu? [closed]

The phrase kernel development came up a lot when doing research, but other people mentioned C++/Python. What would I need in order to get started with this creative project? (not for ...
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0answers
38 views

Cursor Won't Move - ASUS C300

I installed Ubuntu 14.04 on my ASUS C300m Chromebook, completely replacing Chrome OS. It has worked wonderfully except for one tiny little problem. Ever since I updated to the latest kernel, the ...
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0answers
62 views

Broadcom Corporation BCM43142 802.11b/g/n (rev 01) wifi problem with ubuntu 14.04

i have wifi issues with this wireless board Broadcom Corporation BCM43142 802.11b/g/n (rev 01) running Ubuntu 14.04.4 64bit and kernel 4.2.0-30-generic with bcwm-kernel-source 6.30.223.248. Card ...
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2answers
95 views

Which kernel is compatible in my case

English is my second language so it's not so good, sorry My laptop runs cpu i5-6300hq and gtx 960M video card. I recently have installed ubuntu in nomodeset because kernel verson 4.2 didn’t support ...
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2answers
41 views

Have wrecked current 14.04 installation. Want to reinstall

this is a Ubuntu-only machine. No Windows, no dual boot. It's a Dell, with UEFI boot protocol (Inspiron 5559). I wrecked my 14.04 installation by trying to upgrade the kernel (following ...
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0answers
80 views

Wired xbox one controller

When I plug in a xbox one controller either the whole system freezes or nothing happens. I read somewhere that the controllers are supported from kernel 3.17. How can I get the controller to work so I ...
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1answer
55 views

After going through an Ubuntu software update, system fails to boot

It goes like this: Ubutu 14.04 LTS I keep it fairly up to date. Usually allow updates when nagged. Was nagged this morning and allowed update. Rebooted. Got a message that something failed. ...
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0answers
32 views

Who do I talk to fix kernel so Ubuntu boots again in Vmware?

So, the recent 14.04 kernel update has killed my Ubuntu running in Vmware and it will no longer boot up, it hangs. Who do I talk to so that I can get the kernel fixed and it will boot up again? ...
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86 views

can't update or remove old files, please help?

kcook@kcook-GN702AA-ABA-a6244n:~$ sudo apt-get -f install Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following ...
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128 views

I need help with Wacom Intuos Draw (CTL-490) and Ubuntu 15.10j

I bought this CTL-490 thinking (O foolish me) it would be natively supported. After research, i read that it was only supporter from 4.4 kernel. So I tried to install this kernel, (which was ...
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2answers
98 views

Login Loop on Ubuntu 14.04 after latest update

It would appear I'm not the only one but I haven't seen any answers on similar posts that work. Wondering if anyone knows the issue. Latest kernel 79. Tried reinstalling lightdm and tried gdm, no ...
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0answers
72 views

Virtual PC w/VMware Player Problem: Ubuntu-MATE 15.10 won't come up upon reboot after the 1st update from installation

I recently downloaded ubuntu-Mate 15.10 ISO's for i386 as well as 64-AMD. I created virtual PC's for each using VMware Player 7.1.3. Here is my problem: Installation went smoothly for both, and both ...
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1answer
15 views

Are there specific optimizations for the Ubuntu Server kernel?

I liked to install Debian using the netinst images, which installed a base system and allowed me to install additional packages as I wanted. I have searched for something similar in Ubuntu, and the ...
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2answers
42 views

Reverting to Previous Kernel

i am on 14.04 and just did an update on one of my web servers. I am using the GUI. I ran the updates and it broke my VM. I am new to Ubuntu and Linux in general so please bear with me. I was able to ...
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1answer
118 views

kernel update 3.19.0-51 breaks nvidia 304.xx Xubuntu 14.04.04

update to Linux version 3.19.0-51-generic kills nv304 kernel.log [ 19.924934] NVRM: loading NVIDIA UNIX x86_64 Kernel Module 304.131 Sun Nov 8 21:43:33 PST 2015 [ 19.950678] init: failsafe ...
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1answer
41 views

Log file bloat due to nouveau

Both my kern.log and syslog files have grown to >50Gb and contain a few hundred million lines of: Feb 23 23:32:43 Yawning-Angel kernel: [396111.179453] nouveau E[ PFIFO][0000:05:00.0] PBDMA0: ch 2 ...
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2answers
1k views

won't boot after 4.2.0-30-generic kernel update

I'm running 15.10. Yesterday I had a message that there were updates available and I upgraded. Among the updates was kernel 4.2.0-30-generic. It wanted to restart but I chose restart later. This ...
3
votes
1answer
414 views

Upgrading from 16.04 daily to 16.04 LTS

I have a Yoga 900 and I would really like to install Ubuntu on the machine. But the trackpad and touchscreen do not work in Ubuntu natively. There is a fix by installing Ubuntu 16.04 daily on Yoga ...
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0answers
18 views

Ubuntu Server 14.04.3 LTS + 3rd Party SATA Adapter + ZFS + Kernel Updates

I've built an Ubuntu Server 14.04.3 LTS build with a 3rd party SATA3 adapter using ZFS to create a RAID from four drives (RAIDZ). I'm new to Linux and Ubuntu but have managed to get this working with ...
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1answer
106 views

Problems with graphics while booting UBUNTU

I have installed the minimal UBUNTU 15.04 - NO GUI and I DO NOT want it. This Ubuntu has 3.19.0-49-generic kernel. When the system boots with this kernel at the beginning I can see strange ...
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0answers
36 views

Windows will boot, but Ubuntu will not

I received a dell xps from a relative upgraded it to windows 10 from 7 wiped the thing back to factory and installed ubuntu. Everything was working great... then i went to install atom.io and realized ...
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2answers
248 views

Upgraded to kernel 4.2 but getting black screen after that [closed]

I had a mainline kernel 4.2.5 and based on the advise that i should not have a baseline kernel as in this thread I installed it via this command sudo apt-get install --install-recommends ...
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0answers
184 views

how to get a just partly appearing WWAN-dongle to work correct/permanent?

i have got a notebook (HP EliteBook 8460p) with an built in HP hs2340 HSPA+ Mobile Broadband Module (Ericsson F5521gw - the label i found on the WWAN hardware dongle)... from the first days on the ...
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2answers
626 views

nvidia-352 driver not working with kernel 4.2.0-29

after the latest kernel update for wily, to 4.2.0-29, i can no longer load the nvidia-352 driver. After noticing it was not being loaded on boot, i used modprobe nvidia to try loading it manually, and ...
0
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1answer
132 views

Ubuntu 14 not updating or upgrading!

I'm running into issues running sudo apt-get update && apt-get upgrade After I run it, I get this: Reading package lists... Done Building dependency tree Reading state information... Done ...
0
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1answer
60 views

How to get 12.04.3 to a supported LTS kernel (3.13.xx kernel or 3.2.xxx kernel)?

I installed a friends PC with a 12.04.3 install medium. I thought with 12.04 I had always long term support. But looking at kernel support (see ...
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0answers
25 views

Unlock causes kernel panic in Xubuntu 15.10

When I lock the screen (by clicking the padlock in the top of the whisker menu), my screen flashes black a couple of times, and then the lock screen is shown, as expected. When I enter my password, ...
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0answers
93 views

No vgaswitcheroo in /sys/kernel/debug with AMD switchable graphics

I have recently uninstalled fglrx and am trying to set up my hybrid graphics correctly. Setup: Mint 17, Samsung 370R, Intel and AMD 8750M graphics. lspci: 00:02.0 VGA compatible controller [0300]: ...
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1answer
193 views

How to copy linpus Linux drivers and add/replace in ubuntu [closed]

I bought acer laptop with linpus Linux. Everything works in linpus smoothly but in Ubuntu i am facing several problems like : Touchpad not working, wireless devices not working, poor battery life etc. ...
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2answers
156 views

Broken Kernel on 14.04 - can't run any apt-get, dpkg

I recently tried to upgrade to 15.04. My whole computer is acting extremely strangely from it, I believe the process failed halfway through. My login screen shows 14.04, but my system info still says ...
7
votes
1answer
120 views

What is ValleyView encryption controller?

I see this in lspci 00:1a.0 Encryption controller: Intel Corporation ValleyView SEC (rev 0e) Subsystem: ASUSTeK Computer Inc. Device 15bd Kernel driver in use: mei_txe It has a dedicated ...
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2answers
30 views

Kernel panic at boot/Screen shuts off

if I try to boot any recent release. I get pages of messages regarding amd-vi io_page_fault and the kernel panics before anything happens. Or, booting in UEFI mode, the screen simply shuts off. I'm at ...
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1answer
828 views

How to tell if my system is “multiarch”?

Per the LTS Enablement Stack wiki, "to install the newer HWE kernel derived from 15.10 (Wily)" there is a different set of packages to install depending on whether a system is multiarch or not. How ...
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0answers
19 views

OpenGL rendering more costly in Ubuntu 15.04 [closed]

I had been running my application on Ubuntu 14.04 with kernel upgraded to 3.14.5. The application decodes, processes and displays in real time. On porting to Ubuntu 15.04 with kernel 3.19.0, the ...
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0answers
56 views

Ubuntu Server 15.10: Modules not loaded at boot time

Well, after a user / moderator on another stackexchange board suggested, that this is not a raspberry, but an Ubuntu related question, I am asking here now ;) So, I am currently using Ubuntu 15.10 ...
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0answers
24 views

installing lamp showing errors

Reading package lists... Done Building dependency tree Reading state information... Done apache2 is already the newest version. The following packages were automatically installed and are no ...
0
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1answer
59 views

Is kernel 3.16.0-60-generic valid?

When I perform a sudo apt-cache search linux-image I do not see the kernel version 3.16.0-60. Is this a valid kernel? My other Ubuntu workstations only have 3.16.0.49.
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1answer
174 views

Dell xps 13 (3950) videocard not working

I'm a little new to this, so bear with me if the post does not follow the correct format 100%. I have Ubuntu 15.10 installed with kernel 4.5RC3 on a Dell XPS 13 9350 with i7 and followed this guide: ...