Parole, a modern simple media player for XFCE, has reached the 0.9.2 release. Here’s how to install it in Ubuntu 16.10, Ubuntu 17.04 via PPA.

Parole 0.9.2 requires GTK >= 3.20. Ubuntu 16.04 won’t be able to update to this release with the default GTK+3 libraries.

Parole 0.9.2 features:

  • Update homepage to
  • Switch Xfce URLs to HTTPS
  • Keyboard shortcuts helper available in the Help menu
  • New B/N keybindings for previous and next track
  • Fixed null pointer dereference
  • Fixed adding directories to queue via commandline
  • Fixed shuffle functionality also repeating
  • Fixed display order of audio and subtitle tracks
  • Fixed “Clear Recent” clearing global history
  • Fixed Ctrl-Q keybinding when in fullscreen
  • Fixed string escaping in audiobox widget
  • Complete the Parole Plugins documentation and improved documentation quality
  • translation updates and code quality improvements.

How to Install Parole 0.9.2 in Ubuntu:

For Ubuntu 16.10 and Ubuntu 17.04, do following steps to add PPA and install or upgrade Parole to version 0.9.2:

1. Open terminal via Ctrl+Alt+T or by searching for “Terminal” from app launcher. When it opens, run command:

sudo add-apt-repository ppa:ubuntuhandbook1/apps

Type in your password (no visual feedback when typing due to security reason) when it prompts and hit Enter.

parole ppa for zesty

2. Then upgrade the media player via Software Updater utility:

upgrade parole media player

or run following commands to install / upgrade it:

sudo apt-get update

sudo apt-get install parole

For Ubuntu 16.04 users who’ve updated GTK version (no recommended for beginners), grab the .deb package for Ubuntu 16.10 from HERE.


Run following command to purge the PPA repository which also downgrade installed packages to the stock version in your Ubuntu:

sudo apt-get install ppa-purge && sudo ppa-purge ppa:ubuntuhandbook1/apps

Corebird Twitter Client

The Corebird twitter client has reached the 1.5.1 release earlier today. Only stability improvements and no other change in its release page.

Corebird 1.5.1 comes with less than 20 commits. They are mainly:

  • translation updates.
  • Fix Ubuntu 16.04 compile issue.
  • Compatible with more themes.
  • Fix double version number
  • And some other small improvements.

Corebird Twitter Client

How to Install Corebird 1.5.1 in Ubuntu / Linux Mint:

Corebird now is available as Snap, Flatpak, and also traditional Deb packages via PPA.

Install Corebird via Snap:

For Ubuntu 14.04, Ubuntu 16.04, and higher, open terminal via Ctrl+Alt+T and install corebird (1.5 at the moment of writing) via command:

sudo apt-get install snapd && sudo snap install corebird

The snap package of Corebird will be upgraded automatically once the maintainer published the new released.

Install Corebird via PPA:

For Ubuntu 16.04, Ubuntu 16.10, Ubuntu 17.04, Linux Mint 18.x, you can also install Corebird 1.5.1 via the unofficial PPA (maintained by

1. Open terminal via Ctrl+Alt+T or by searching “terminal” from app menu. When it opens, run command to add the PPA:

sudo add-apt-repository ppa:ubuntuhandbook1/corebird

2. Then upgrade the client via Software Updater:

upgrade corebird

or simply run commands one by on to check updates and install Corebird:

sudo apt-get update

sudo apt-get install corebird

Uninstall Corebird:

To remove the Corebird Snap package, run command:

sudo snap remove corebird

To remove Corebird installed from PPA, run command:

sudo apt-get remove --autoremove corebird

And the PPA can be removed by Software & Updates utility under Other Software tab.

This quick tutorial is going to show you how to install the latest Python 3.6.1 in Ubuntu 16.04 LTS via PPA.

Ubuntu 16.04 comes with both Python 2.7 and Python 3.5 by default. You can install Python 3.6 along with them via a third-party PPA by doing following steps:

1. Open terminal via Ctrl+Alt+T or searching for “Terminal” from app launcher. When it opens, run command to add the PPA:

sudo add-apt-repository ppa:jonathonf/python-3.6

Type in your password (no visual feedback due to security reason) when it asks and hit Enter.

2. Then check updates and install Python 3.6 via commands:

sudo apt-get update

sudo apt-get install python3.6

Now you have three Python versions, use python command for version 2.7, python3 for version 3.5, and/or python3.6 for version 3.6.1.

3. To make python3 use the new installed python 3.6 instead of the default 3.5 release, run following 2 commands:

sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.5 1

sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.6 2

Finally switch between the two python versions for python3 via command:

sudo update-alternatives --config python3

After selecting version 3.6:

python3 -V

I’ve been running into desktop shortcut key issue recently in my Ubuntu 16.04 LTS. When I trying to launch a terminal or take a screenshot, there will be more than 20 seconds delay after pressing Ctrl+Alt+T or PrintScreen on keyboard.

This happened after installed some Gnome related application libraries. And I found this BUG after doing a little search. A workaround is to restart the gnome-keyring-daemon service.

1. Launch terminal from Unity Dash, Gnome launcher, or other app launcher.

When it opens, run command to kill the service:

sudo killall gnome-keyring-daemon

The service starts automatically after you killed it, and that fixes the shortcut delay issue until reboot.

2. Until Gnome Team fixed the issue, you have to run the command automatically on startup by doing following steps:

Launch Startup Applications utility, click Add button and type:

  • Name: whatever
  • Command: killall gnome-keyring-daemon
  • Comment: whatever

Finally click Add the startup item and enjoy!

Linux Kernel

The 4.12 Linux Kernel was finally released earlier today. Linus Torvalds announced in

Things were quite calm this week, so I really didn’t have any real reason to delay the 4.12 release.

As mentioned over the various rc announcements, 4.12 is one of the bigger releases historically, and I think only 4.9 ends up having had more commits. And 4.9 was big at least partly because Greg announced it was an LTS kernel. But 4.12 is just plain big.

There’s also nothing particularly odd going on in the tree – it’s all just normal development, just more of it that usual. The shortlog below is obviously just the minor changes since rc7 – the whole 4.12 shortlog is much too large to post.

In the diff department, 4.12 is also very big, although the reason there isn’t just that there’s a lot of development, we have the added bulk of a lot of new header files for the AMD Vega support. That’s almost exactly half the bulk of the patch, in fact, and partly as a result of that the driver side dominates everything else at 85+% of the release patch (it’s not all the AMD Vega headers – the Intel IPU driver in staging is big too, for example).

But aside from just being large, and a blip in size around rc5, the rc’s stabilized pretty nicely, so I think we’re all good to go.

Go out and use it.

Kernel 4.12 top features:

  • initial GeForce GTX 1000 series 3D accelerated support on Nouveau driver stack
  • Intel’s DRM driver has turned on atomic mode-setting by default
  • Initial Radeon RX Vega support on AMDGPU DRM driver
  • A USB Type-C port manager
  • KASLR enabled by default for x86 systems.
  • BFQ and Kyber now mainline as two new I/O schedulers.
  • Continued power management tuning.

How to Install Kernel 4.12 in Ubuntu / Linux Mint:

The mainline kernels do not include any Ubuntu-provided drivers or patches. They are not supported and are not appropriate for production use.

The mainline kernel PPA has made the binaries for the new kernel release, available for download at the link below:

Download Kernel 4.12 (.deb)

Depends on your OS type, download and install the packages in turns:

  1. linux-headers-4.12.0-xxxxxx_all.deb
  2. linux-headers-4.12.0-xxx-generic(/lowlatency)_xxx_amd64(/i386).deb
  3. linux-image-4.12.0-xxx-generic(/lowlatency)_xxx_amd64(/i386).deb

Select generic for common system, and lowlatency for a low latency system (e.g. for recording audio), amd64 for 64bit system, i386 for 32bit system, or armhf, arm64, etc for other OS types.

To get the Kernel 4.12 from the command console, run the commands below one by one:

For 64-bit OS:

cd /tmp/




sudo dpkg -i *.deb

for 32-bit OS:

cd /tmp/




sudo dpkg -i *.deb

After installed these .debs, restart and enjoy!

Uninstall Linux Kernel 4.12:

Start/restart your machine and select boot with the previous kernel in Grub2 -> Advanced menu. Then use Ubuntu Tweak, or other system tool to remove the Kernel 4.12, or you may see this how to remove old kernels tutorial.