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VirtualBox can't operate in VMX root mode

If you get this message from VirtualBox:

VirtualBox can't operate in VMX root mode. Please disable the KVM kernel extension, recompile your

type:
sudo modprobe -r kvm_intel

Run VirtualBox again that should fix the problem.

Transparent VirtualBox window with compiz manager

If you getting a transparent VirtualBox window, you can start VBox like this to fix the problem:
env XLIB_SKIP_ARGB_VISUALS=1 VirtualBox

references:
https://bugs.launchpad.net/ubuntu/+source/virtualbox-ose/+bug/292588
http://ubuntuforums.org/showthread.php?t=1160178
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Ubuntu GNOME 17.04 running with HiDPI and touch screen support

Ubuntu GNOME 17.04 running with HiDPI and touch screen support








See my previous post on how to install Ubuntu on Yoga Pro 2 for Ubuntu GNOME 16.10.

I think Ubuntu GNOME is the best flavor of Ubuntu if you are running in HiDPI mode 3200x1800. All screen captured images are at HiDPI resolution.
Touch support Ubuntu gnome support for touch screen is pretty good on the desktop shell.
Chrome browser supports touch screen very well and much better than Firefox without any plug-ins.
The windows key on the screen panel works as the windows key on the keyboard.
Screen rotation is supported on the new gnome and disables the keyboard when the yoga is used as a tablet, side lock rotation button works to lock the screen in a certain rotation.



 What works Almost everything works great out of the box, there isn't many changes you need to do.
UbuntuGnome ships with gnome 3.24 and will boot with full resolution HiDPI and touch screen support enabled
Screen HiDPI supportBrightness, resolution keys, o…

Ubuntu 17.10 review. Running with hidpi, touch screen and wayland support

Ubuntu GNOME 17.10

I think Ubuntu GNOME is the best flavor of Ubuntu if you are running in HiDPI mode 3200x1800 with a touchscreen. All screen captured images are at HiDPI resolution.

Since I prefer the standard gnome-session experience, I installed the "gnome-session" package and rebooted the system. And on the cog icon next to the sign in button, select the "GNOME" instead of ''Ubuntu" option before clicking the sign in button.

sudo apt install gnome-session

Touchpad
I increased the speed, enabled "tap to click", "two finger scrooling". and on gnome-tweak enabled click method to "fingers".
Touch support Ubuntu gnome support for touchscreen is pretty good on the desktop.
Chromium browser supports touch screen very well and much better than Firefox without any plug-ins.
In my Yoga pro 2, the windows key on the screen panel works as the windows key on the keyboard.
Screen rotation is supported on the new gnome and disables …

Using a socks proxy

#ssh to a machine on the network you need access and start # a local socks server ssh -D 9999 httpserver.blah.com
# setweb browser proxy to proxy: localhost:9999
# To use other apps with socks install sudo apt-get install tsocks
# Change config file to (remove everything else) /etc/tsocks.conf server = 127.0.0.1 server_port = 9999
# ssh to a machine tsocks ssh -X httpserver.blah.com
# eclipse to a machine tsocks eclipse
reference: using tsocks for tunneling cmds lines and everything else http://www.plenz.com/tunnel-everything