Unable to load desktop environment after resolving PCSX2 dependencies on x86

turbodog

Attempted to install PCSX2 experimental package via retropie setup script.

Installation failed, so I did the following:

sudo dpkg –add-architecture i386
sudo add-apt-repositroy ppa:Gregory-hainaut/pcsx2.official.ppa

Installation failed again with the following:

The following packages have unmet dependencies:
 pcsx2-unstable:i386 : Depends: libportaudio2:i386 (>= 19+svn20101113) but it is not going to be installed
                       Depends: libsdl2-2.0-0:i386 (>= 2.0.8) but it is not going to be installed
                       Recommends: libasound2-plugins:i386 but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
Unable to install binary for pcsx2

I ran the following:

sudo apt-get install libportaudio2:i386
sudo apt-get install libpulse0:i386
sudo apt-get install libsdl2-2.0.0:i386
sudo apt-get install libsound2-plugins:i386

I then successfully installed PCSX2 via retropie setup script. I ran retropie, and did not see PS2 in the emulationstation frontend (BIOS/ROMs placed in the locations provided by the wiki). I rebooted, and now the system boots to prompt, and does not load the graphical environment. If I run startx, I get the following:

>egrep -B5 -A2 '(EE)|(WW)' .local/share/xorg/Xorg.0.log
[   696.882] Current version of pixman: 0.34.0
[   696.887]    Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
[   696.887] Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[   696.896] (==) Log file: "/home/me/.local/share/xorg/Xorg.0.log", Time: Fri Dec 13 12:55:30 2019
[   696.898] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
--
[   696.898] (==) Automatically adding devices
[   696.898] (==) Automatically enabling devices
[   696.898] (==) Automatically adding GPU devices
[   696.898] (==) Automatically binding GPU devices
[   696.898] (==) Max clients allowed: 256, resource mask: 0x1fffff
[   696.898] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[   696.898]    Entry deleted from font path.
[   696.898] (WW) The directory "/usr/share/fonts/X11/100dpi/" does not exist.
[   696.898]    Entry deleted from font path.
[   696.898] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist.
[   696.898]    Entry deleted from font path.
[   696.898] (WW) The directory "/usr/share/fonts/X11/100dpi" does not exist.
[   696.898]    Entry deleted from font path.
[   696.898] (WW) The directory "/usr/share/fonts/X11/75dpi" does not exist.
[   696.898]    Entry deleted from font path.
[   696.898] (==) FontPath set to:
--
[   696.904] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[   696.904] (II) FBDEV: driver for framebuffer: fbdev
[   696.904] (II) VESA: driver for VESA chipsets: vesa
[   696.904] xf86EnableIOPorts: failed to set IOPL for I/O (Operation not permitted)
[   696.904] (II) modeset(0): using drv /dev/dri/card0
[   696.904] (WW) Falling back to old probe method for fbdev
[   696.904] (II) Loading sub module "fbdevhw"
[   696.904] (II) LoadModule: "fbdevhw"
[   696.904] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[   696.904] (II) Module fbdevhw: vendor="X.Org Foundation"
[   696.904]    compiled for 1.20.4, module version = 0.0.2
[   696.904]    ABI class: X.Org Video Driver, version 24.0
[   696.904] (EE) open /dev/fb0: Permission denied
[   696.904] (WW) VGA arbiter: cannot open kernel arbiter, no multi-card support
[   696.904] (II) modeset(0): Creating default Display subsection in Screen section
        "Default Screen Section" for depth/fbbpp 24/32
--

Launching emulationstation from the shell:

lvl0:   Error initializing SDL!
        No available video device
lvl0:   Renderer failed to initialize!
lvl0:   Window failed to initialize!

I found some old articles describing making changes to the permissions of dev/fb0, but I do not want to make any permissions changes without understanding how/why access to the device is no longer available. I cannot think of anything else I may have done prior to cause this, so I’m pursing the most obvious variable first – my most recent changes.

RetroPie-Setup version: 4.5.3 (8cfaadd)
System: Ubuntu 18.04.3 LTS
NUC8i3

turbodog

sudo apt-get install ubuntu-desktop

Resolved the issue, and PS2 appears in the EmulationStation frontend.
.bash_history doesn't show any evidence of the desktop environment being removed - by way of shell command.