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

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5
votes
2answers
627 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
votes
0answers
30 views

initramfs boot error on dual boot machine

Scenario: Dual boot windows7 and ubuntu machine. I downloaded a new linux kernel and then implemented 3 system calls on it. Then I compiled the kernel on ubuntu and tried to boot into the newly ...
0
votes
0answers
60 views

SSH connections cause memory leak in kernfs

I have an issue with my Ubuntu system where memory is leaked each time an ssh connection is opened and closed. I found that the root cause is that after an ssh connection nodes are created and left ...
1
vote
1answer
247 views

Latest Kernel for ubuntu 14.04.4

I am currently running Ubuntu 14.04.4 with kernel version 3.16. There are posts that indicate that the current kernel version is 3.19. Should I upgrade, if yes then how? Wouldn't the kernel be ...
35
votes
5answers
69k views

How can I upgrade the Ubuntu LTS kernel to newer?

I just installed Ubuntu 12.04.2 64-bit on my desktop PC and I see the kernel in System Monitor is 3.5.0-23 but in Ubuntu 12.04.2 in my laptop the kernel is 3.2.0-38. I have already tried to run the ...
0
votes
1answer
227 views

Upgrade from 14.04 to 16.04 LTS failed with a kernel panic [closed]

I tried to upgrade to 16.04 from 14.04 using update-manager -d. After installing new packages/updates, my system is not booting. it's showing the following error. drm_kms_helper : panic occurred, ...
0
votes
1answer
11 views

Dell 1130 printer drivers

Does anyone know how I can get my 14.04 LTS box to drive an older Dell 1130 Laser Printer? Thanks
1
vote
1answer
27 views

Slow restart from hibernation

One of our computers running ubuntu 15.10 is very slow at restarting from hibernation. Slow as in today it took it 20 minutes to restart. As in this conversation ...
0
votes
0answers
23 views

General protection fault

Since yesterday I was receiving General Protection Faults errors (2 IIRC) like this I don't know if it's related, but yesterday, just an hour or so before the first crash, I've installed the ...
4
votes
1answer
2k views

update-initramfs: /usr/share/initramfs-tools/hooks/fixrtc failed with return 1

I'm using Kubuntu 13.04 x64. I found out about this problem after installing Nvidia drivers from jockey and seeing that nouveau was still loading instead. I tried to manually reinstall nvidia-current ...
-2
votes
2answers
46 views

What blobs are in the Ubuntu kernel, release 15.10?

It was indicated that my question was a lot like the question following this, the edit suggested explaining why it is different. This is about the kernel, not about repositories. Refer to the ...
1
vote
2answers
5k 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 ...
3
votes
4answers
9k views

I can't delete old kernel, Ubuntu 14.04

I have tried Ubuntu Tweak, Synaptic and some command line stuff I found online, but nothing seems to work. This is the output of dpkg -l linux-image-\* | grep ^ii ii linux-image-3.13.0-24-generic ...
0
votes
0answers
17 views

How to compile the patch of Real Time Application Interface in ubuntu

I will to install the RTAI for Ubuntu 14.04, I followed this tutorial : https://github.com/shengtu/Tesla . But when you do sudo patch -p1 < ...
0
votes
0answers
21 views

How to install Real Time Application Interface for kernel 3.16.0-30-generic

I have a Ubuntu 14.04, kernel 3.16.0-30-generic and I want to install the RTAI. How do I do this? I want the easy way, step by step.
1
vote
1answer
314 views

1 Help with installing Nvidia drivers in Ubuntu 14.04

I am trying to install an Nvidia driver for the GeForce GTX 750 Ti graphics card I have but I am running into some issues in the process. Running Ubuntu 14.04. Essentially, I have followed the ...
3
votes
1answer
571 views

Ubuntu on DigitalOcean does not use the latest kernel

On a digialocean's VPS, I have some linux kernel installed. This is the result when I do sudo update-grub : Found linux image: /boot/vmlinuz-3.16.2-031602-generic Found initrd image: ...
3
votes
5answers
6k views

elantech touchpad - multi touch is not working for kernel 3.13.0-35-generic

I recently updated my kernel to 3.13.0-35-generic,after update my elantech touchpad multi touch stopped working I tried fixing it from here ...
0
votes
0answers
41 views

troubleshooting compact wireless in linux

I didn't want to ask for what seems like such an easy problem but i've been working on this for more than a week now. My problem is I can't get compact wireless to install on linux and I did look ...
5
votes
1answer
1k views

Ubuntu 15.04 USB devices powered off at encrypted root password prompt

Since my update from Ubuntu 14.04 -> 14.10 -> 15.04 it sems that i cannot boot my system anymore as i am stuck at the password prompt when ubuntu appempts to mount my encrypted root partition. The ...
0
votes
0answers
16 views

How to solve the error starting version 219?

My Ubuntu 15.04 is showing "starting version 219". I can't login to my system. What is this? Is this a bug of Ubuntu? How do I can solve this issue? Please help me.
0
votes
0answers
51 views

Installing NVIDIA Driver: Error Run 'make oldconfig && make prepare' on kernel src to fix it."

I started installing the NVIDIA Cuda driver on the latest version of the free Ubuntu. I began by following the instructions in the answer here. After completing the steps, I ran into a new error ...
0
votes
0answers
51 views

3.13.0-83-generic won't boot (14.04 LTS)

Both my graphics card and motherboard are a couple of weeks old, so this is not a hardware failure. My Ubuntu machine boots just fine with 3.13.0-79-generic, but boots to black screen with ...
0
votes
0answers
17 views

Gamepad won't enumerate

I have been searching all day and cannot find a solution. When I plug in my Logitech Dual Action controller, I get this output from dmesg $ dmesg [41080.387654] usb 2-1.2: new low-speed USB ...
0
votes
1answer
3k views

Is it recommended to install “LTS Hardware Enablement Stack” for Intel GMA-500 Issues?

I have Xubuntu-12.04 LTS on my Sony VAIO P with Intel GMA-500 graphics for more than a year. I have solved some issues using the fixes suggested in the Poulsbo-wiki but unfortunately some issues still ...
0
votes
0answers
49 views

KVM /QEMU Error : Unable to connect to libvirt

I am using KVM from some time on Ubuntu 14.04 LTS. I also wanted to tried Xen as a hypervisor on the same system i am using KVM.So i tried to install it. But it didn't properly installed giving me ...
6
votes
2answers
8k views

How to get the GRUB using virtualbox?

I have ubuntu-12.04 on my virtualbox and I have two kernels in /boot (old and new). When I restart the vbox no grub appears to choose! and the result of cat /proc/cmdline still shows the old kernel is ...
0
votes
0answers
10 views

How to boot a LIve-System without X

How do I boot a Ubuntu-Live-System without starting X-Server? I only want a login prompt and a bash behind it. The bootoption text or textonly are not documented and doesn't work in current kernel ...
2
votes
1answer
2k views

ACPI : EC: Fail in evaluating the _REG object of EC device. Broken bios is suspected

I can't install linux with kernel over than 4.x on my computer. (MSI GP72-6QE-087XFR Leopard Pro) Tried : Ubuntu 15.10, debian 8 and linux mint 17.3. This is saying: "ACPI : EC: Fail in evaluating ...
1
vote
1answer
40 views

Linux Kernel — I messed up removing old versions

I was trying to remove old kernels using Synaptic, and something went very wrong. Now, I get this error in Synaptic if I try to fix it: (synaptic:11810): GLib-CRITICAL **: ...
1
vote
0answers
61 views

Practical use of ecryptfs, encrypted keys, and TPM: how to convert existing user key to encrypted key?

Short version of this question is: How do I convert a user key on the kernel keyring storing ecryptfs authentication token / FEFEK to an encrypted key on keyring? (I.e. how to add an encrypted key ...
0
votes
0answers
72 views

Virtualbox won't work with kernel 3.16.0-34; can't use any newer kernel

I'm using 3.16.0-34 kernel version on Ubuntu 15.10. With any newer kernel version I get more and more problems. With first post-3.16 versions, the fan would go to full speed non-stop after waking from ...
0
votes
0answers
18 views

virtualbox unstable after having removed xen

I installed a fresh version of ubuntu (ubuntu 15) yesterday and wanted to try xen. so I installed the package ("sudo apt-get install xen-hypervisor-amd64"), rebooted and, as I have understood, the ...
3
votes
1answer
169 views

Understanding bbswitch and nvidia kernel module

I have a laptop with a GTX 970M dGPU and an Intel GMA iGPU. I currently have the proprietary nvidia drivers installed (no nouveau) as well as bumblebee and bbswitch. Basically, I want the laptop to ...
3
votes
0answers
27 views

enable parallel port interrupts/ access in Ubuntu 12.04

I need to interface a mid 1990s laboratory instrument to Ubuntu 12.04 for moderately high speed data acquisition ( 100 Usec) from the instrument . The instrument requires ( will not even run without ...
0
votes
1answer
36 views

40_custom / how to keep current with kernels

My Acer freezes every 10 minutes unless I use the following in Grub defaults: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux intel_idle.max_cstate=0 processor.max_cstate=1" To avoid having ...
1
vote
1answer
47 views

What is USB error -62?

When I plug a USB mouse into a computer, the following error appears in the logs: Mar 24 21:43:03 homer kernel: [ 2674.768039] usb 2-9: new full-speed USB device number 3 using ohci_hcd Mar 24 ...
0
votes
0answers
30 views

Bugs with read and variables (busybox)

I have a //tiny// problem with my script: I cannot get the $key1 content. Basically, the script writes into /tmp/bios.sh, runs chmod +x on it and launches it (see result 1). The command set shows ...
0
votes
1answer
1k views

FATAL: Module rtc not found

Upstart gives "unknown job" error when I try to start the server with $ start <my-app-name>. I found this in the logs: z@ubuntu:/var/log/upstart$ sudo zcat module-init-tools.log.1.gz FATAL: ...
3
votes
4answers
736 views

Boot partition full, failing to delete old kernels. Broken packages

Sorry for asking about what is probably really simple, but I've been Googling about for a week now and I've tried a lot of stuff without success. To start off, I get a pop-up every time I boot saying ...
27
votes
20answers
66k views

Virtualbox Kernel driver not installed

I tried to use my Virtual Box and this is the error I received - (I just updated to the new Ubuntu also) and I am VERY new at this Linux OS. Kernel driver not installed (rc=-1908) The ...
0
votes
0answers
7 views

Problem Instaling gfx-tablet

I am trying to install gfx-tablet in my computer and run it, but I have a problem, first of all I did all the step necessaries to install it. But when I arrived to the last step I had the following ...
1
vote
1answer
2k views

Possible missing firmware /lib/firmware/radeon/VERDE_mc2.bin

I have this missing firmware after compiling and installing kernel 3.14.6 (mainline) Could someone point me to where I can get it or how to make it get compiled?
0
votes
1answer
92 views

iscsi_trgt module for kernel 4.5

Ubuntu 15.10, Kernel 4.5 I followed this guide: http://www.cyberciti.biz/faq/debian-ubuntu-building-installing-a-custom-linux-kernel/ and I'm running Kernel 4.5, but I'm missing the iscsi_trgt ...
0
votes
1answer
44 views

Will the lts kernel update their driver to support newer hardware in the future?

The developers choose linux 4.4LTS as the kernel of Ubuntu 16.04LTS, will the kernel update its driver for newer hardware in the future? Or will they just upgrade the kernel version for Ubuntu 16.04.1 ...
2
votes
1answer
136 views

14.04 update: kernel crypto interface not available

A few days ago, after a sytem update to kernel 3.19.0-56, I can not open anymore a tcrypt volume with cryptsetup. I get the following error: sudo cryptsetup open --type tcrypt /dev/sda tcryptDisk ...
0
votes
1answer
39 views

How to change the CPU escalator configuration that Ubuntu has originally

I don't want a command line solution that includes installing anything at all. Ubuntu configures the CPU governor in a configuration file AFAIK. I want to locate and change the file correctly. I ...
0
votes
1answer
189 views

Touchpad won't work after Kernel update

After the installation of Ubuntu 14.04 on my acer Aspire E 11 laptop the touchpad was working normally. Two days later I accepted the upgrades shown in the Software Updater, then it won't be ...
5
votes
1answer
9k views

14.04 : How to disable discrete graphics card

I know 14.04 has Kernel 3.13 and is supposed to be better at dynamic power management. My problem is the estimated remaining time keeps changing. But on an average I see 5 hours. On same machine on ...