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Archives For November 30, 1999

Gradio – A GTK3 App Finding & Listening to Internet Radios

Last updated: July 28, 2016

Gradio

There are a few applications available for listening internet radio stations in Ubuntu Desktop. Gradio is new one that allows users to find radio stations by typing a keyword in the search box, and then listen to one internet radio by clicking on it.

The simple tool requires GTK3 >= 3.18, so it works on Ubuntu 16.04, Ubuntu 16.10, and their derivatives, e.g., Linux Mint 18 and Elementary OS 0.4 Loki.

How to install Gradio in Ubuntu 16.04:

The pre-compiled binary packages are available for download at the link below:

Choose amd64.deb for 64-bit system and i386.deb for 32-bit system, and then click install the package via Ubuntu Software.

For those who want to add the PPA and receive future updates via Software Updater, open terminal (Ctrl+Alt+T) and run commands to add the PPA repository (so far supports for Ubuntu 16.04 and 16.10):

sudo add-apt-repository ppa:haecker-felix/gradio-daily

sudo apt update

sudo apt install gradio

(Optional) To remove the software, simply run apt command with remove flag:

sudo apt remove gradio

And the PPA can be remove by launching Software & Updates utility and navigating to Other Software tab.

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How to Install Linux Kernel 4.7 in Ubuntu 16.04/14.04

Last updated: July 25, 2016

Linus Torvalds finally announced the release of the Linux Kernel 4.7. He wrote on lkml.org:

So, after a slight delay due to my travels, I’m back, and 4.7 is out.

Despite it being two weeks since rc7, the final patch wasn’t all that big, and much of it is trivial one- and few-liners. There’s a couple of network drivers that got a bit more loving. Appended is the shortlog since rc7 for people who care: it’s fairly spread out, with networking and some intel Kabylake GPU fixes being the most noticeable ones. But there’s random small noise spread all over.

Kernel 4.7 release highlights:

  • open source support for Radeon RX 480 GPUs
  • async discard support by the core block code
  • support for upgrading firmware using the EFI Capsule
  • New Linux Security Module (LSM) “LoadPin”
  • support for generating virtual USB Device Controllers in USB/IP
  • numerous drivers updates and lots of bug-fixes.

How to Install / Upgrade Kernel 4.7 in Ubuntu:

Ubuntu Kernel Team has made the binary packages for the new kernel release, available for download at the link below:

Depends on your OS type, grab and install the packages below one by one:

  1. linux-headers-4.7.0-xxxxxx_all.deb
  2. linux-headers-4.7.0-xxx-generic(/lowlatency)_xxx_amd64(/i386).deb
  3. linux-image-4.7.0-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 and i386 for 32bit system.

You may also download these .deb packages in terminal / command console by running following commands one by one:

For 64-bit system:

cd /tmp/

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7/linux-headers-4.7.0-040700_4.7.0-040700.201607241632_all.deb

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7/linux-headers-4.7.0-040700-generic_4.7.0-040700.201607241632_amd64.deb

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7/linux-image-4.7.0-040700-generic_4.7.0-040700.201607241632_amd64.deb

sudo dpkg -i *.deb

For 32bit system:

cd /tmp/

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7/linux-headers-4.7.0-040700_4.7.0-040700.201607241632_all.deb

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7/linux-headers-4.7.0-040700-generic_4.7.0-040700.201607241632_i386.deb

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7/linux-image-4.7.0-040700-generic_4.7.0-040700.201607241632_i386.deb

sudo dpkg -i *.deb

Finally restart your computer.

Uninstall Kernel 4.7:

For any reason you want to remove this Kernel, start/restart your machine and select boot with the previous kernel in Grub2 -> Advanced menu. Then remove the 4.7 kernel via Ubuntu Tweak, or just follow this tutorial.

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Battery Monitor – Notify Charging, Discharging, Fully Charged Status

Last updated: July 23, 2016

Battery Monitor is a simple tool written in Python3 and PyGTK3. It notifies battery status of charging, discharging, fully charged through desktop notifications. When the battery is below 10%, it plays a sound and pops up a notification bubble.

No command typing on terminal, no extra indicator, the tool just pop notifications when the battery status changes.

How to Install Battery Monitor in Ubuntu:

1. Use PPA.

Open terminal (Ctrl+Alt+T) and run the commands below one by one to install it from the PPA:

sudo add-apt-repository ppa:maateen/battery-monitor

sudo apt update

sudo apt install battery-monitor

So far, Ubuntu 16.04 and Ubuntu 14.04 are supported.

2. For those who don’t want to add PPA, grab the .deb installer from the release page.

Once installed, launch the tool via command battery-monitor for the first time. Or just restart, it will start in background automatically at login.

NOTE: The software is in very earlier stage, it may have bugs. Report issues and ask requests at https://github.com/maateen/battery-monitor/issues

To uninstall it, just run command:

sudo apt remove battery-monitor

And remove the PPA if added via Software & Updates -> Other Software tab.

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Ubuntu 16.04.1 Released with Hardware support Updates & Fixes

Last updated: July 21, 2016

The first point release of Ubuntu 16.04 LTS was released today with so many fixes, improvements, and Kernel and hardware support updates.

Updated CD images for Ubuntu 16.04.1 are available for download, including fixes for many hardware-specific bugs.

According to the change summary, Ubuntu 16.04.1 brings:

  • Some apt, systemd, dpkg and xinit bugs has been fixed in this release to fix upgrade issues.
  • some LibreOffice crash fixes.
  • Lots of fixes and improvements to Gnome Software (Ubuntu Software)
  • Enable the Snappy back-end for Gnome Software (Ubuntu Software)
  • Many many fixes to Unity, Unity Settings Daemon, compiz, lightdm display manager, oxide-qt browser engine, etc.
  • See the change summary for more details.

How to Upgrade to Ubuntu 16.04.1:

For Ubuntu 16.04, running a regular system update using Software Updater will bring you to Ubuntu 16.04.1.

Or run commands in terminal via:

sudo apt update && sudo apt upgrade

For Ubuntu 15.10 and Ubuntu 14.04, you may follow this guide to upgrade to 16.04.1.

You can upgrade directly from 14.04 to 16.04.1. Just make sure you have selected to notify LTS only in Software & Updates settings:

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Cumulus – Desktop Weather App based on StormCloud

Last updated: July 20, 2016

StormCloud, a stylish desktop weather app, now is resurrected! And it’s called Cumulus.

Cumulus is forked from Typhoon which is a community version forked from StormCloud 1.1. While Typhoon is not in active development, Daryl Bennett resurrect the weather app with the help of Typhoon developer in their spare time and its Cumulus.

Cumulus so far features:

  • temperature & wind speed support.
  • custom background color
  • adjust opacity
  • Unity Launch count that shows current temperature.

Known Bugs:

  • There are a few grey clouds spoiling an otherwise bright first run, including some opacity issues on first-run, dead links, broken support pages, and credits panel that credits the old developers.
  • Cumulus so far does not save location settings.

Download Cumulus:

The 64-bit .deb installer is available in the link below (PPA and snap package may be available in near future):

Click install the .deb package via Ubuntu Software and launch Cumulus from Unity Dash.

For those who have problem launching the app, try the command below to install gir1.2-webkit-3.0 in terminal (Ctrl+Alt+T):

sudo apt install gir1.2-webkit-3.0

via: OMG!Ubuntu!

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How to Install the Latest MPV Media Player in Ubuntu 16.04

Last updated: July 19, 2016

MPV is a free and open-source media player forked from MPlayer2. It was started to modernize MPlayer by adding modern features, and removing unmaintainable code and dropping support for very old systems.

MPV uses FFmpeg or Libav for decoding, it can be used as a library in other applications (e.g., SMPlayer, and Gnome MPV).

Notable changes from MPlayer:

  • Through youtube-dl, MPV natively supports playback of HD content on YouTube and over 300 other supported sites.
  • include customizable video output driver based on OpenGL that supports for controlling playback quality
  • MPV can be used directly by other applications through a library interface called libmpv.
  • a new video encoding mode that can save playing files under different formats.

How to Install MPV in Ubuntu:

MPV is available in official Ubuntu repositories, but it’s old and Canonical does not provide updates for it. Besides building from the source code, you can install the latest version from this PPA.

1. To add PPA, open terminal (Ctrl+Alt+T) and run the command:

sudo add-apt-repository ppa:mc3man/mpv-tests

2. Then upgrade Mpv using Software Updater or just run the command in terminal to install/upgrade it:

sudo apt update && sudo apt install mpv

3. (Optional) To remove the PPA, go to Software & Updates -> Other Software tab. And remove mpv via command:

sudo apt remove mpv && sudo apt autoremove
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Nvidia 367.35 Released with 8K H.265 Support [How to Install]

Last updated: July 19, 2016

Nvidia has recently announced the Linux driver 367.35 with GeForce GTX 1000 performance improvements and support for 8K H.265 video decoding.

Nvidia 367.35 release highlights:

  • Fixed a regression that could cause console corruption when resuming from suspend.
  • Improved buffer write performance of the nvidia-drm DRM KMS driver by using write-combined DRM Dumb Buffers where available
  • Fixed a bug that caused X to crash when applying changes to the RandR CscMatrix property while VT-switched away from X.
  • Fixed a bug that caused a crash when exiting nvidia-settings on displays with 8 or 15 bit color depths.
  • Added support for VDPAU Feature Set H to the NVIDIA VDPAU driver. GPUs with VDPAU Feature Set H are capable of hardware-accelerated decoding of 8192×8192 (8k) H.265/HEVC video streams.
  • Fixed a bug that caused the X server to sometimes skip displaying Vulkan frames when the Composite extension is enabled.
  • Added support for querying clock values on Pascal GPUs.
  • Removed the Base Mosaic configuration option from nvidia-settings on systems where the feature is not actually supported.
  • Fixed a bug that caused nvidia-smi to report an inaccurate version number.
  • Fixed a bug that could lead to a system crash if there was a peer-to-peer mapping still active during CUDA context teardown.
  • Fixed a bug that prevented nvidia-bug-report.sh from finding relevant messages in kernel log files.

How to Install Nvidia 367.35 in Ubuntu:

Graphics Driver Team has made the new driver release into PPA, available for Ubuntu 16.04, Ubuntu 15.10, Ubuntu 14.04, Ubuntu 12.04, and the next Ubuntu 16.10.

Follow the steps below to add PPA and install the driver:

1. Add Graphics Drive PPA, by opening terminal (Ctrl+Alt+T) and running the command:

sudo add-apt-repository ppa:graphics-drivers/ppa


2. After that, install nvidia-367 driver using Additional Drivers utility.

Or run the commands below one by one in terminal:

sudo apt update

sudo apt install nvidia-367

Finally restart your computer and done.

3. For any issue you may remove the driver via the steps below, and then install a different version of the driver.

  • press Ctrl+Alt+F1 to switch to command console and login
  • purge Nvidia driver via command sudo apt purge nvidia-*
  • reboot via command sudo reboot
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GIMP 2.8.18 Released with Security Fix to XCF

Last updated: July 14, 2016

GIMP image editor 2.8.18, a new point release in the stable branch, has been released to fix a vulnerability in the XCF loading code. With special XCF files, GIMP can be caused to crash, and possibly be made to execute arbitrary code provided by the attacker.

Besides this security fix, GIMP 2.8.18 also brings following changes:

  • Fix “GIMP is not responding” on initial startup on Windows and OS X.
  • Fix GUI crashed on OS X
  • Fix gamut warning color for lcms display filter
  • Fix unbolding of bold font on edit
  • Decrease installer size by changing compression settings
  • Many other fixes, translation and documentation updates.

How to Install GIMP 2.8.18 in Ubuntu:

GIMP does not provide official Linux binary package. But Otto Meier is maintaining a PPA with most recent packages. So far, Ubuntu 16.04, Ubuntu 15.10, Ubuntu 14.04, Ubuntu 12.04 and their derivatives are supported.

1. Add the PPA.

Open terminal (Ctrl+Alt+T) and run command:

sudo add-apt-repository ppa:otto-kesselgulasch/gimp

2. Upgrade GIMP using Software Updater.

Or run the command below one by one:

sudo apt update

sudo apt install gimp

3. (Optional) For any reason, you want to downgrade to stock version of GIMP in your Ubuntu. Install ppa-purge and purge the PPA:

sudo apt install ppa-purge && sudo ppa-purge ppa:otto-kesselgulasch/gimp
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2 Best Chinese PinYin Input Method in Ubuntu 22.04/24.04

Last updated: April 1, 2024

As a Chinese user, I have never used iBus PinYin in Ubuntu. For me, one of the first things to do after a new Ubuntu installation is to install a Input Method.

As I know, there are two best Chinese IM for Ubuntu:

  • Fcitx – A flexible Input Method framework
  • Sogou PinYin – the most popular Chinese IM.

Install and Setup Fcitx:

Fcitx is an open-source and powerful IM framework that provides: Google PinYin, ShuangPin, SunPinYin, Wubi, ZhengMa, Hong Kong and TaiWan Traditional Chinese input methods, and more.

1. Fcitx is available in Ubuntu universe repository, so you can easily install it by opening terminal (Ctrl+Alt+T) and run:

sudo apt install fcitx fcitx-googlepinyin fcitx-table-wbpy fcitx-pinyin fcitx-sunpinyin

By typing sudo apt install fcitx- and hit TAB key, it will show you many other available plugins for fcitx.


2. After installed fcitx, launch Language Support utility and select use Fcitx:

3. Finally restart your computer and you’ll see a keyboard icon in panel. Go to Configure (see menu in the top picture) and do:

  • click the bottom left plus icon.
  • uncheck “only show current language” if you running the desktop with non-Chinese language.
  • scroll down and choose an IM you want
  • finally click OK.

To switch between English keyboard and Fcitx, use Ctrl+Space and then Ctrl+Shift to switch between installed Fcitx IMs.

Install and Setup SouGou PinYin:

SouGou PinYin for Linux is developed by Ubuntu Kylin Team and Sougou company. Its Windows version is one by the most popular IMs in China.

1. Sougou for Linux conflicts with some Fcitx libraries, so open terminal (Ctrl+Alt+T) and remove fcitx via command:

sudo apt remove fcitx* && sudo apt autoremove

2. Download the official Linux package from (run uname -m to tell your OS type):

Download Sogou for Linux

Click install the .deb package via GDebi or Ubuntu Software. Or use command:

sudo apt install ~/Downloads/sogoupinyin*.deb

3. After installing the IM, restart your computer and Sogou’s ready for use at next login.

Like Fcitx, you can press Ctrl+Space to switch between English keyboard and Sogou PinYin.

UPDATE: Installing SoGou PinYin will add a Kylin repository into your system, you may keep it and install the key so that apt update won’t boring you with missing GPG issue Recent version does no longer add any other source repositories.

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Virtualbox 5.1 Released, How to Install in Ubuntu 16.04

Last updated: July 13, 2016

Oracle Virtualbox has just reached a new major 5.1 release. Here’s how to install it in Ubuntu 16.04.

Virtualbox 5.1 ports its UI to Qt5, brings better Python 3 support, HDA (High Definition Audio) support for newer Linux guests, various VMM and other improvements and fixes.

Virtualbox release highlights:

  • VMM: new APIC and I/O APIC implementations that result in significantly improved performance in certain situations
  • VMM: added support for Hyper-V paravirtualized debugging of Windows guests
  • VMM: emulate even more MMIO and shadow pagetable exits without going back to user mode
  • GUI: overall migration to Qt5
  • GUI: passive API event listener improving the VM GUI performance and response time
  • Audio: added HDA (High Definition Audio) support for newer Linux guests
  • Audio: added on-demand timers which should improve the overall performance and reduce the CPU consumption
  • Audio: more fine-grained volume control for the AC’97 emulation, which now also takes the master volume control into account
  • better support for Python 3
  • For more details, see the ChangeLog.

How to install Virtualbox 5.1 in Ubuntu:

1. The 5.1 release conflicts with the old 5.0 or 4.x releases, so first open terminal (Ctrl+Alt+T) and run command to remove the previous VBox installation:

sudo apt remove virtualbox virtualbox-5.0 virtualbox-4.*

2. Download Virtualbox 5.1 for your OS (i386=32bit, amd64=64bit):

Download Virtualbox for Linux

Then click install via Ubuntu Software.

3. For those who want to install VBox 5.1 from official Linux repository and receive future updates via Software Updater. Run the commands below one by one in terminal:

sudo sh -c 'echo "deb http://download.virtualbox.org/virtualbox/debian xenial contrib" >> /etc/apt/sources.list.d/virtualbox.list'

wget -q https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | sudo apt-key add -

sudo apt update

sudo apt install virtualbox-5.1

According to your Ubuntu codename, replace xenial with wily, trusty, or precise.

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