Unity Crashes on opening old or new project on Ubuntu 16.04 LTS

This is the Editor Log:
~/.config/unity3d$ cat Editor.log
mono profile = ‘/opt/Unity/Editor/Data/Mono/lib/mono/2.0’
Initialize mono
Mono path[0] = ‘/opt/Unity/Editor/Data/Managed’
Mono path[1] = ‘/opt/Unity/Editor/Data/Mono/lib/mono/2.0’
Mono path[2] = ‘/opt/Unity/Editor/Data/UnityScript’
Mono path[3] = ‘/opt/Unity/Editor/Data/Mono/lib/mono/2.0’
Mono config path = ‘/opt/Unity/Editor/Data/Mono/etc’
Using monoOptions --debugger-agent=transport=dt_socket,embedding=1,defer=y,address=0.0.0.0:56517
Desktop is 1920 x 1080 @ 60 Hz

LICENSE SYSTEM [201785 18:32:35] No start/stop license dates set

LICENSE SYSTEM [201785 18:32:35] Next license update check is after 2017-08-05T12:03:24

COMMAND LINE ARGUMENTS:
/opt/Unity/Editor/Unity
[0805/183235:ERROR:browser_main_loop.cc(161)] Running without the SUID sandbox! See chromium - An open-source project to help move the web forward. - Monorail for more information on developing with the sandbox on.
ATTENTION: default value of option force_s3tc_enable overridden by environment.
[0805/183235:ERROR:renderer_main.cc(227)] Running without renderer sandbox
IsTimeToCheckForNewEditor: Update time 0 current 1501938160
/home/hindu/Projects/New Unity Project
UpdateMenuTitleForLanguage: 10
Audio: FMOD Profiler initialized on port 54900
AudioManager: Using PulseAudio: Default Output Device
Loading GUID ↔ Path mappings…0.000047 seconds
Loading Asset Database…0.000008 seconds
AssetDatabase consistency checks…0.000085 seconds
Initialize engine version: 5.6.1xf1Linux (6a86e542cf5c)
Assertion failed on expression: ‘context.IsValid()’

(Filename: /home/builduser/buildslave/unity/build/Runtime/GfxDevice/opengl/GLContext.cpp Line: 70)

Receiving unhandled NULL exception
#0 0x007ffe03eba980 in funlockfile
#1 0x007ffe03ebade0 in GfxDeviceGLES::~GfxDeviceGLES()
#2 0x007ffe03ebae10 in CreateGLESGfxDevice(GfxDeviceRenderer)
#3 0x007ffe03ebae70 in CreateClientGfxDevice(GfxDeviceRenderer, GfxCreateDeviceFlags)
#4 0x007ffe03ebaf00 in InitializeGfxDevice(GfxCreateDeviceFlags)
#5 0x007ffe03ebb030 in InitializeEngineGraphics(bool)
#6 0x007ffe03ebb050 in Application::InitializeProject()
#7 0x007ffe03ebc400 in InitializeUnity(void*)
#8 0x007ffe03ebc4b0 in g_source_get_time
#9 0x007ffe03ebc4d0 in g_main_context_dispatch
#10 0x007ffe03ebc560 in g_main_context_dispatch
#11 0x007ffe03ebc5c0 in g_main_loop_run
#12 0x007ffe03ebc5f0 in gtk_main
#13 0x007ffe03ebc670 in main
#14 0x007ffe03ebcf80 in __libc_start_main
#15 0x007ffe03ebd040 in _start
Launching bug reporter

This looks like Unity was unable to create an OpenGL context for OpenGL 3.2 core profile or later.

How to resolve that issue. I Have completely re-installed linux but still unity 5.6.1 crashes on project opening.

If you are, don’t use the built drivers turn on priority ones. If you’re using AMD hardware that a few years old there’s no priority drivers so install 15.10 or older then turn on priority drivers