Ubuntu 16.04 shuts down on it’s own

I have the following problem: I have a 32-Bit Pc with an AMD-Athlon X2 processor. It’s harddisk has two partitions. One of them has Windows 7 and the other one has Ubuntu 16.04. The Windows 7 partition works fine. However, the Ubuntu partition ramdonly shots down itself since a few days ago. The last thing I did before the problems began was install chromium and IG:DM (Instagram Direct Messenger) and resolve a critical problem with Firefox. Afterwards, it shotsdown itself even while I work only with a terminal and/or a ZSNES emulator. Using fcsk did not solved the problem. I searched into the log files and I didn’t find a clue. The only thing couldn’t test was if upgrading the kernel from a 4.x.x version to a 5.0.8 version would solve the problem, because Ubuntu shots down itself even while compiling the kernel. Also, I don’t know if backing up my Firefox configuration and then uninstalling Firefox and Chromium and re-installing Firefox is the solution. I cannot say the problem is the PC’s fan because if it were for that, Windows 7 also would shotdown itself.

Also, I don’t know if the following is related: in Windows 7 ramdomly my Internet Connection is interrupted once in a day since my parents changed the Internet Service provider and it’s solved using the Window’s Problem Solver.

Given the description above, do you have any ideas of what could cause the Ubuntu shotdown? Thanks in advance.

Boot problems on ubuntu 16.04 (elementart os) with kernel 4.4.0-145

After a recent update on my dual boot hp laptop with secure boot disabled, whenever I switch back to linux (from windows 10) on the default kernel (4.4.0-145) the boot process gets stuck in the this loop with the basic error message:

Unexpected IRQ trap at vector 07 

I’ve taken pictures and posted here: https://imgur.com/a/wGbMYlb

Switching to the previous kernel lets me boot fine and then the default kernel works again on the next boot.

I can provide more info if needed.

Thank you.

Also, moderators, if this question would be better suited on Unix SE, please migrate or let me know. Thanks.

“Dummy Output” in Ubuntu 16.04 after fresh install

The history is very long.

  1. HP brand desktops bought with windows 10
  2. Installed ubuntu 16.04, worked perfectly. No sound problem
  3. Bought a new monitor.
  4. Can’t rotate the screen.
  5. Install Nvidia graphics driver.
  6. Now I can change rotation from Nvidia controller.
  7. Worked fine at this moment.
  8. Went to windows for some work.
  9. Windows updated, restarted.
  10. Ubuntu 16.04 got login loop.
  11. Try almost all the solution in the net. Doesn’t work.
  12. Make a new bootable pen drive using rofus of Ubuntu 18.04 LTS.
  13. Can’t install 18.04LTS. Basically at this point the boot loader can’t be installed. Showed fatal error.
  14. Collect a similar bootable pen drive (Ubuntu 18.04 LTS) from a friend. Now this time it installs (successfully installed bootloader), but yet again login loop.
  15. Again make a bootable pendrive(18.04LTS) using “Universal-USB-Installer”, this time There are some error related to kernel.
  16. Finally made a 16.04LTS bootable pen drive with “Universal-USB-Installer”, it successfully installs the OS but can’t install the bootloader. Surprisingly this time when I restated the PC, it booted into 16.04 LTS but The wallpaper is Ubuntu 18.04LTS’s wallpaper. Checked the OS by restarting and try to see if some files can be saved or not, but everything is ok.
  17. OS is now running perfectly but there is no SOUND. Some POST I’ve already followed,


sudo alsa force-reload 


Unloading ALSA sound driver modules: (none loaded). Loading ALSA sound driver modules: (none to reload). 
  1. sudo apt-get purge pulseaudio sudo apt-get clean && sudo apt-get autoremove  sudo apt-get install pulseaudio sudo gedit /etc/pulse/default.pa load-module module-switch-on-port-available sudo init 6 
  2. 3.

sudo apt-get purge pulseaudio sudo apt-get clean && sudo apt-get autoremove rm -r ~/.pulse ~/.asound* ~/.pulse-cookie ~/.config/pulse sudo apt-get install pulseaudio 
  1. sudo apt-get update && sudo apt-get upgrade echo options snd-hda-intel model=auto | sudo tee -a /etc/modprobe.d/alsa-base.conf


options snd-hda-intel model=auto 
  1. Stop Sound option in bios, reboot to ubuntu and again start sound option in bios and reboot to ubuntu.

  2. try to change kernel from the advance options in ubuntu grub.

some image of sound setings and pulseaudio volume control. In pulse audio volume controle it is showing that audio is running in chrome and dummy output driver is getting that audio.

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I have also tried this, https://help.ubuntu.com/community/SoundTroubleshootingProcedure

Lubuntu 16.04 PowerPC install failures – how is this error possible?

I’m trying to install 16.04 onto a PowerPC G5 Mac. However, this has not gone smoothly, and after hours of research and watching tutorials my problem has become maddening.

In short, every time I try to run the Lubuntu installer I end up with a screen that looks like this:


This screen is generated after I run yaboot, and after the blue lubuntu loading screen runs. What’s really interesting to me about this screen is that you’ll notice in the bottom left hand corner it looks lot like the OS10.5 background, dock, and Finder have all gotten mixed in there. I’m really not sure how those could be generated booting from a Lubuntu install disc. This has me very, very confused.

My machine is able to recognize the install disc and boots from it, but once I’m past the command line phase (from my reading I’m pretty sure that means I’m running yaboot?) it does not matter which config options I select – I always end up with the above screen, or a similar variant. Live, live-video=ofonly, live-powerpc, etc: all end up with the same result. I’ve tried different PowerPC versions of Lubuntu and several alternate installs of 16.04, but they’ve yielded nothing. At this point, I’m baffled.

I know installing Lubuntu is possible, but nowhere have I come across an error similar to what I’m seeing. I know errors in video seem to be common (having everything go white and fail to initialize appears to be the most prevalent (see here,and here, and here) but what I’m encountering seems different than those issues. Maybe it isn’t, though, so I’m asking for any insight the community has.

So far, to fix this I’ve tried several things:

  1. Running various PowerPC versions of Lubuntu (16.04, 12.02, etc.)
  2. Grabbing several of the alternative installers for each
  3. Adjusting the video settings, including: =nomodeset, video=TV-1:d video=TV-2:d (as described in the parameters section here), nosplash, and others

But I’m still stuck. I’m raising the white flag, since this seems to be a problem that’s out of my league. Any and all advice would be gratefully appreciated.


Model: Power Mac G5, PowerMac 7,3 OS 10.5.4 Processor Speed: 2.5Ghz Number of CPUs: 2 Memory: 512MB GPU: Nvidia GeForce 6800 Ultra ROM Revision: 2119

Ubuntu 16.04 USB Installer freezes when choosing grub option on mac mini

I have an old mac mini that I’m trying to reinstall ubuntu 16.04 on becouse the old on boots in GRUB and then when I boot ubuntu nothing happends and the screen just turns “ubuntu purple”.

When I try to use the USB and choose an option from the GRUB menu the whole computer freezes. With no error message or anything, just a black terminal screen with a _ on the top left corner and no response.

Any idea why this happends and what I could do to fix this?