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    #1

    Desktop not loading - tried everything but still just a black screen

    Running 16.04. Upgraded to 16.10 Everything was working fine a few days ago and then I ran an update script:

    Code:
    sudo apt-get update
sudo apt-get upgrade -y
sudo apt-get autoremove -y
sudo apt-get dist-upgrade
    This has never caused any issues. After rebooting, my installation has effectively broke.

    Hardware:
    • Nvidia 9400 GT running proprietary driver nvidia-current
    • AMD FX-9590
    • 16GB RAM
    • 500GB SSD


    Things I've tried:

    Almost everything on this page that pertains: https://journalxtra.com/linux/desktop-recovery/the-definitive-guide-to-getting-your-linux-desktop-back/

    • Reinstalling kubuntu-desktop, kubuntu-full, plasma-desktop, kde-workscape
    • Restarting sddm
    • Deleting ~/.cache
    • Deleting ~/.config
    • Deleting ~/.kde
    • Deleting ~/.Xauthority
    • Deleting ~/.local/share/kscreen
    • Adding ppa:kubuntu-ppa/backports
    • Adding ppa:kubuntu-ppa/ppa
    • Running sudo nvidia-xconfig
    • Reinstalling/re-configuring xserver/xorg
    • Using tasksel or just apt-get to install ubuntu-gnome-desktop (which wouldn't even load either so I removed it)


    Running plasmashell & gets: "QXcbConnection: Could not connect to display"

    It was originally a fresh 16.04 install from USB.

    I'm at my wits end. I've tried every suggestion I could find on every forum that looked relevant and its still broken.

    What logs might be useful?
    Last edited by Enigma0; Jan 10, 2017, 11:07 AM.
    Tags: None
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    #2
    So exactly what is happening starting with a cold boot? Do you get to the Login Greeter screen?
    Windows no longer obstructs my view.
    Using Kubuntu Linux since March 23, 2007.
    "It is a capital mistake to theorize before one has data." - Sherlock Holmes​
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      #3
      Originally posted by Snowhog View Post
      So exactly what is happening starting with a cold boot? Do you get to the Login Greeter screen?
      It's been set to auto log in. It gets through that just fine and loads up a borderless teamviewer window and that's all I see.

      I also have a cursor but the entire desktop is essentially non-existent.
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        #4
        Originally posted by Enigma0 View Post
        ...and loads up a borderless teamviewer window and that's all I see.
        TeamViewer? Are you attempting to login to your PC remotely, using TeamViewer?
        Windows no longer obstructs my view.
        Using Kubuntu Linux since March 23, 2007.
        "It is a capital mistake to theorize before one has data." - Sherlock Holmes​
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          #5
          Originally posted by Snowhog View Post
          TeamViewer? Are you attempting to login to your PC remotely, using TeamViewer?
          Nope. TeamViewer just happens to be installed and launches on startup/login.
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            #6
            On that TeamViewer Window, does it show the option to Start TeamViewer with System? If so and it is enabled, uncheck it and reboot.
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              #7
              Originally posted by MoonRise View Post
              On that TeamViewer Window, does it show the option to Start TeamViewer with System? If so and it is enabled, uncheck it and reboot.
              I ran sudo apt-get remove --purge teamviewer but nothing improves.

              I can now see this however:

              Click image for larger version Name: qv69lsn.jpg Views: 1 Size: 77.1 KB ID: 643442
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                #8
                seems that some items are missing. Can you boot into a recovery session?
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                  #9
                  Originally posted by MoonRise View Post
                  seems that some items are missing. Can you boot into a recovery session?
                  Sure. Do you mean the grub/kernel level recovery menu?

                  What then?
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                    #10
                    Yes, the kernel via the Grub entry that allows you to pick the kernel with "(recovery mode)" out beside it. Here in Maui that is through "Advanced Options" but may be different for Kubuntu, it's been a while here so I don't remember. I think it is similar.

                    Anyway, once in and at a console level try running
                    Code:
                    sudo dpkg --configure -a
                    This should fix any packages that didn't install properly on that upgrade. Once done, then do the
                    Code:
                    sudo apt-get update && sudo apt-get upgrade
                    Just please note that I've had to do this before and it worked and without knowing everything that went on on the upgrade it is hard to say if it will be give it a try and let us know.
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                      #11
                      Originally posted by MoonRise View Post
                      Yes, the kernel via the Grub entry that allows you to pick the kernel with "(recovery mode)" out beside it. Here in Maui that is through "Advanced Options" but may be different for Kubuntu, it's been a while here so I don't remember. I think it is similar.

                      Anyway, once in and at a console level try running
                      Code:
                      sudo dpkg --configure -a
                      This should fix any packages that didn't install properly on that upgrade. Once done, then do the
                      Code:
                      sudo apt-get update && sudo apt-get upgrade
                      Just please note that I've had to do this before and it worked and without knowing everything that went on on the upgrade it is hard to say if it will be give it a try and let us know.
                      Ok done. There was no output from the dpkg command and seemingly nothing happened. Still the same issue in the image above after running those commands and rebooting.
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                        #12
                        Might be wise to take a good long look at this bug report -

                        https://bugs.launchpad.net/ubuntu/+s...d/+bug/1576500

                        At the end of the bug report one person says they resolved it by reinstalling kubuntu-desktop.

                        good luck -
                        we see things not as they are, but as we are.
                        -- anais nin
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                          #13
                          Originally posted by wizard10000 View Post
                          Might be wise to take a good long look at this bug report -

                          https://bugs.launchpad.net/ubuntu/+s...d/+bug/1576500

                          At the end of the bug report one person says they resolved it by reinstalling kubuntu-desktop.

                          good luck -
                          Unfortunately, as mentioned in the OP, I did try to do that as well as reinstalling plasma-desktop & kubuntu-full. Was pretty hopeful but it didn't work.
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                            #14
                            I'm wondering if not all the repositories are being looked at.

                            Does anyone know of a command line way to check the Repositories list to see if it is complete and correct?
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                              #15
                              Originally posted by MoonRise View Post
                              I'm wondering if not all the repositories are being looked at.

                              Does anyone know of a command line way to check the Repositories list to see if it is complete and correct?
                              After the initial post, I upgraded from 16.04 to 16.10 which theoretically should have reset all the repositories:

                              Code:
                              ~$ cat /etc/apt/sources.list

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://us.archive.ubuntu.com/ubuntu/ yakkety main restricted
# deb-src http://us.archive.ubuntu.com/ubuntu/ xenial main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://us.archive.ubuntu.com/ubuntu/ yakkety-updates main restricted
# deb-src http://us.archive.ubuntu.com/ubuntu/ xenial-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## universe WILL NOT receive any review or updates from the Ubuntu security
## team.
deb http://us.archive.ubuntu.com/ubuntu/ yakkety universe
# deb-src http://us.archive.ubuntu.com/ubuntu/ xenial universe
deb http://us.archive.ubuntu.com/ubuntu/ yakkety-updates universe
# deb-src http://us.archive.ubuntu.com/ubuntu/ xenial-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://us.archive.ubuntu.com/ubuntu/ yakkety multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ xenial multiverse
deb http://us.archive.ubuntu.com/ubuntu/ yakkety-updates multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ xenial-updates multiverse

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://us.archive.ubuntu.com/ubuntu/ yakkety-backports main restricted universe multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
deb http://archive.canonical.com/ubuntu yakkety partner
deb-src http://archive.canonical.com/ubuntu yakkety partner

deb http://us.archive.ubuntu.com/ubuntu/ yakkety-security main restricted
# deb-src http://security.ubuntu.com/ubuntu xenial-security main restricted
deb http://us.archive.ubuntu.com/ubuntu/ yakkety-security universe
# deb-src http://security.ubuntu.com/ubuntu xenial-security universe
deb http://us.archive.ubuntu.com/ubuntu/ yakkety-security multiverse
# deb-src http://security.ubuntu.com/ubuntu xenial-security multiverse
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