Help running cgminer on Ubuntu 14.04 - waiting for USB hotplug devices, and other errors
Your system reports: Intel's new Iris Pro graphics.

As far as ubuntu 13.10 was concerned the package cgminer was compiled for nvidia graphics cards and installed the module for ubuntu.

Consider running a system with dedicated GPU w/ PCIe: e. g. nvidia and ATI and possibly compile cgminer by yourself.

I tried bfgminer for ubuntu now, see here: http://jarco.be/install-bfgminer-ubuntu-mint/

...but cannot get it to work for litecoin scrypt right now...

NOW up and running bfgminer compiled for ubuntu 14.04 with howto from here:
https://debianhelp.wordpress.com/2012/01/02/bitcoin-mining-in-ubuntu-with-bfgminer/

with some minor changes:


installed "bitcoin-qt" instead of "bitcoin"
sudo apt-get install uthash-dev
./autogen.sh &amp;&amp; ./configure --enable-scrypt --enable-opencl &amp;&amp; make
modified ".bfgminer/bfgminer.conf" can be pasted here, if you want
-> 880kh/s @ ATI Radeon R9 290X