I want to install Ubuntu 16.04.2 LTS on my HP Pavilion 15-AW009AX (256 GB SSD, 16GB RAM, AMD Radeon R7 M440 and an AMD 9600P Processor).

I followed the installation guidelines to install Ubuntu via a bootable USB flash drive and chose to "Install Ubuntu". The screen froze upon installation and after browsing through a few forums I found that replacing "quiet splash" with "nomodeset" within the "Install Ubuntu" command may be able to solve my problem. Ubuntu installed, however, I got stuck in a loop when logging in - the screen would basically go blank and then take me back to the login screen.

I then rebooted and loaded the GRUB terminal, entering the "Ubuntu" menu I added "radeon.modeset=0" to the end of the line starting with "linux" as my HP has an AMD graphics card and upon reboot I am getting the following error screen:


I have been through a few forums and I believe I am having problems due to the graphics card. If anyone could help I would really appreciate it.


I have found another post on the ask ubuntu forums which lists a similar issue encountered when trying to boot ubuntu onto a HP laptop with similar specs: HP Laptop AMD APU - Fail to Boot - Live linux cd

The post mentioned above conatins a link to a patch which I believe may solve the issue. I am unsure how to go about applying the patch. Will I be required to patch and compile the source code for the kernal?


Running fsck -y /dev/sda2at the initramfs prompt returns the following:


The AMD-Vi: Completion-Wait loop timed out appears to be addressed in the patch mentioned above.

1 Answer 1


Fix the BusyBox screen by manually fixing the filesystem with this at the prompt:

(initramfs) fsck -y /dev/sda2

(In the above command, the initramfs is the prompt you're seeing. The text the follows is the command to type in.)

Fix the graphics problem by running this at a console prompt. First boot using the nomodeset grub parameter. You can get to a console by hitting this keyboard short cut: Alt+Ctrl>+F2.

Install Graphic Drivers from Commandline

Run this command to show the available drivers for your GPU:

$ ubuntu-drivers devices

You'll be safer by picking the one that the system identifies as recommended.

To install a driver from the list run this:

$ sudo apt-get install [drivername]

To see which driver is currently in use (most likely the one that is failing) run:

$ sudo lspci -nnk | grep -i vga -A3
  • You're very welcome. Did you test the steps? I'm sure it'll resolve your issue. If it fails, I would like to know the type of error you get so that I can fix the answer and help with your resolution. Jun 28, 2017 at 12:07
  • I ran the fsck command at the initramfs prompt as directed. This ended with a series of five lines of the form: [ XX.XXXXXX] AMD-Vi: Completion-Wait loop timed out. This is what was appearing after several attempts at logging in. I believe this issue is addressed in the patch mentioned in the EDIT above.
    – mroche1991
    Jun 28, 2017 at 12:16
  • There are a number of ways to fix problems. Personally, I would try first using the default Operating system which usually works. The link in your question is different from the Busybox prompt that you have, with is very specifically a problem (separate from the Graphics card issue) to the integrity of your file system... partially /dev/sda2. That would have to be addressed before going further. It's very important not to interrupt the fsck program. If you don't interrupt it. It should fix that part of your problem. Are you still getting the same fix /dev/sda filesystem? Jun 28, 2017 at 12:24
  • As shown in the edit above running the fsck program appears to modify /dev/sda2 file system. This is then followed by the AMD-Vi: Completion-Wait loop timed out issue.
    – mroche1991
    Jun 28, 2017 at 12:54
  • Sorry. I didn't notice you had updated the question. I'll study the update and provide a resolution for the new screen... if you don't mind. The new screen is different. It appears to have cleaned the /dev/sda problem. Jun 28, 2017 at 12:59

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