Ubuntu – No graphical user interface after update on 16.04

driversgdmguinvidiaxorg

After an update from Ubuntu GNOME 15.10 to 16.04 my gui completly crashes after GRUB. If I try a normal boot, the gui freezes there, where the LVM needs the password to decrypt the systemdrive.

I can boot into the recoverymode and decrypt the systempartition but then strange things happends.

The gui does not start and tty1 just "flashes" every few seconds. It looks like some process try to start the gui but it does not work.

If I change to tty2 or another tty the "flash" kicks me back to tty7 every few seconds.

With ps aux | grep Xorg I see, that the Xorg server is restartet whenever this "flash" happens (PID is increasing every "flash"). I can just stop it by renaming the Xorg binary.

I try to install the driver from Nvidia for my GForce 980TI

http://www.nvidia.com/download/driverResults.aspx/77844/en-us

but theres an error while building the DKMS Module.
(UEFI Secure boot is deactivated).

Edit:
Found this thread
Graphics issues after/while installing Ubuntu 16.04/16.10 with NVIDIA graphics
and try the following things:

sudo apt-get purge nvidia-*
sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt-get update
sudo apt-get install nvidia-364

Didn't help

sudo apt-get purge xorg-* xserver-xorg; sudo apt-get install xorg xserver-xorg; sudo dpkg-reconfigure xorg

Didn't help

sudo apt-get purge ubuntu-gnome-desktop gnome-desktop-environment; sudo apt-get install ubuntu-gnome-desktop

Didn't help

It seems like I have to do a fresh install.

Best Answer

You might want to try to install NVIDIA drivers 361 - open a terminal and execute the following commands :

sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt-get update
sudo apt-get install nvidia-361
sudo reboot

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Ubuntu – Black screen on boot when any NVIDIA drivers installed

this is already answered here at askubuntu - I refer to this workaround of myself here :

How can I Install Nvidia Driver GT 520 and Cuda 5.0 in Ubuntu13.04?

You should carefully read this and follow this step by step - read this here too at nvidia :

http://www.nvidia.de/object/cuda_1_1_beta.html

This should solve your black screen into a magic screen ...

Ubuntu – Nvidia GT730 driver problem with Ubuntu 16.04

From Nvidia customer service.... The following worked for me:

NVIDIA Driver Installation for Ubuntu 16.04

for Ubuntu 16.04, please try the following manual driver installation procedure:

blacklist open source nouveau driver by the command

sudo printf "blacklist nouveau\nblacklist lbm-nouveau" | sudo tee /etc/modprobe.d/blacklist-nouveau.conf 

blacklist nouveau
blacklist lbm-nouveaulisam@Atlas-PC:~$

to update the boot process run the command

    sudo update-initramfs -u 

    update-initramfs: generating /boot/initrd.img-4.4.0-36-generic
    W: Possible missing firmware /lib/firmware/i915/kbl_dmc_ver1.bin for module i915_bpo
    W: Possible missing firmware /lib/firmware/i915/skl_guc_ver6.bin for module i915_bpo

Reboot

use ctrl+alt+F1 to go to a console, then login and use the command
```
sudo service lightdm stop (command to exit the gui) 
```
change directory to the Download folder where you usually download the NVIDIA driver

cd /home/usr/Downloads

run sudo sh and follow on screen instructions

    sudo sh ./NVIDIA-Linux-x86_64-367.44.run

It may say that the pre-installation script failed and do you want to continue and answer Yes.

    The target kernel has CONFIG_MODULE_SIG set, which means that it supports cryptographic signatures on kernel modules. On some systems, the kernel may refuse to load modules without a valid signature from a trusted key. This system also has UEFI Secure Boot enabled; many distributions enforce module signature verification on UEFI systems when Secure Boot is enabled. Would you like to sign the NVIDIA kernel module?

    <Install without signing>

I tried installing without installing and I get an error message saying I needed to sign the kernel module or signing was necessary for secure boot up.

I tried to disable secure boot:

plug in USB Restart and enter BIOS Advanced mode> secure boot Windows UEFI mode OS Save secure boot keys Select USB drive as file system Saved four key files PK, KEK, DB, DBX to USB Delete PK to disable secure boot Save and restart with Other OS type and Secure Boot state disabled

    WARNING: Unable to find a suitable destination to install 32-bit comptability libraries. Your system may not be set up for 32-bit compatibility. 32-bit compatibility files will not be installedl if you wish to install them, re-run the installation and set a valid directory with the –compat32-libdir option.
    <OK>

    Would you like to run the nvidia-xconfig utility to automatically update your X configuration file so that NVIDIA X driver will be used when you restart X? Any pre-existing X configuration file will be backed up
    <YES>

reboot or run this command to start the gui:
```
sudo service lightdm start
```

Best Answer

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