bluetooth management


bluetooth control


MAC address of headphones


list bluetooth adapters

hciconfig -a



intel based controllor that never works properly


Good controllor


select a controllor

select 5C:F3:70:9C:CA:D3

how to connect - the actual solution to my problem

select 5C:F3:70:9C:CA:D3
connect 38:18:4C:17:DA:4E
Posted @ 2020-10-06 23:49

From the project directory:

python3.6 -m venv ./env

Activate it:

source env/bin/activate

Posted @ 2019-11-10 22:43

Reload sound driver in Ubuntu: pulseaudio -k && sudo alsa force-reload

I've needed to do this on multiple installs far, far too often.

Posted @ 2019-07-19 18:09

make sure the service is started:

sudo service mongod start
Posted @ 2019-02-28 14:47

See ports in use:

sudo ss -plnt

Filter the list:

sudo ss -plnt | grep ':80'

Kill all proccess using a specific port, this will do so violently:

kill -9 $(lsof -t -i:5000)
Posted @ 2019-02-28 14:45

no ethernet networking

not helpful but good for info

lshw -C network

sudo service network-manager restart



changed managed to true

changed it back

still no internet

lspci -nn | grep 0200

00:19.0 Ethernet controller [0200]: Intel Corporation Ethernet Connection I217-V [8086:153b]

this did nothing

sudo apt-get install build-essential linux-headers-generic

installed net-tools for ifconfig, why doesn't it have it by default?

it seems like it has the driver, that the driver works but that it just doesn't connect

upgrading ubuntu software packages to see if it helps

this seems to be the driver and this command checks it?

sudo modprobe e1000e

grep of log for adapter

dmesg | grep e100

log says it was renamed:

[    0.943644] e1000e 0000:00:19.0 eno1: renamed from eth0

this might be the cause of the problem?

tried manually setting ip, netmask dns for ip4 for the adapter, tells me it's connected, guess what it's not connected

ethernet adapter is called eno1 for some reason

downloading driver from intel for

Ethernet controller: Intel Corporation Ethernet Connection I217-V

got the info on that from running


sudo apt install ethtool

get info on adapter

ethtool adapter_name

e.g. ethtool eno1

I'm now somewhat convinced that this is a hardware problem that is possibly CPU related due to some other problems.

It is really intermittent though, in using Fedora the same computer has no problems with the network adapter. Like Ubuntu however the sound doesn't work for headphones which is a whole other annoying Gnome3 thing.

Posted @ 2019-02-28 13:07
while sleep 1; do ls | wc -l; done

rm -r *.srt

ls -alh | grep '\.json$' | sort

Search all files for a specific extension:
find / -name "*.pdf"
Posted @ 2019-02-28 13:05

Check the adapter state:

sudo lshw -C network

Make the network connection active:

sudo ifconfig eno1 up

Manually set the ipv4 setting for the ethernet adapter

sudo ifconfig eno1 netmask

Set the default gateway

sudo route add default gw eno1

Set the defualt nameserver:

echo "nameserver" > /etc/resolv.conf


i now get permission denied doing the above command even as root, permissions for the file resolv.conf are actually for anyone to be able to edit

lrwxrwxrwx   1 root root       39 Jul  1 23:03 resolv.conf -> ../run/systemd/resolve/stub-resolv.conf

so it's a little strange, looking at the file the nameserver is:


so i'm changing it to:

so trying to save resolv.conf i get:

    could not save file too many levels of symbolic links

    a@a-Z97-D3H:/etc$ ls -al | grep resolv.conf
    lrwxrwxrwx   1 root root       39 Jul  1 23:03 resolv.conf -> ../run/systemd/resolve/stub-resolv.conf

i have changed both files in: /run/systemd/resolve

to have a name server of:

These two are not that useful

lspci -nnk

lspci -nnk | grep -A2 net
Posted @ 2019-02-28 13:04

Command to fix problem with wifi dropping on x200

sudo iwconfig wlp3s0 power off
Posted @ 2019-02-28 13:02

get current driver info:

sudo lshw -c video

current driver:

configuration: driver=amdgpu latency=0

replace AMDs driver with MESA:

So folloing the advice in the above link i first purged and removed then did

sudo lshw -c video

and it's still using the same driver, so i don't think it's actually using the mesa driver at all

after re-adding the packages it still shows the driver as:


seems the right driver is installed you can check with:

glxinfo | grep "OpenGL version"

says mesa there

The mesa drivers are better but I am still getting graphical problems.

Posted @ 2019-02-28 13:01

Run as root:

docker stop $(docker ps -q)

Posted @ 2019-02-28 12:57

lsof -w -n -i tcp:5000

lsof -w -n -i tcp:5000

kill -9 processId

Posted @ 2019-01-30 18:10