Chrome based browsers (Edge/Vivaldi/etc) and Chrome itself are great. But the font smoothing on my Linux laptop (Pop!_Os / Ubuntu) is not great. This comes into play when you’re visiting pages with web or web-safe fonts.
Web(-safe) fonts allow Web designers to use fonts that are not installed on the viewer’s computer.
The edges of the fonts look a bit jagged and the edges are vague. This is quite annoying, since the fonts are rendered perfectly in all other applications.
After a whole lot of searching I finally found the solution (for me). YMMV (Your miles may vary)
Solution: Disable Hardware acceleration in settings
Go to settings by clicking the three dots and then select settings.
You can see in the example above that Intel means that you’re still using the Intel onboard graphics card for all your OpenGL stuff (including games like CS:GO)
And Intel GPU is not good for gaming.
Note: If it actually says NVIDIA in your output then don’t continue with the solution below.
Solution: (Re-)Install the NVidia driver
Check if you have the driver currently installed:
dpkg -l |grep nvidia
Notice: If the package is installed on your system then the package name is preceded by ii
There should be driver package named nvidia-driver-xxx installed. Where xxx is the version number.
In my system it looks like this:
~ dpkg -l |grep nvidia
ii libnvidia-cfg1-470:amd64 470.57.02-1pop0~1627044105~21.04~f9815ed amd64 NVIDIA binary OpenGL/GLX configuration library
ii libnvidia-common-470 470.57.02-1pop0~1627044105~21.04~f9815ed all Shared files used by the NVIDIA libraries
rc libnvidia-compute-435:amd64 440.31-1pop1~1573485407~19.04~af08493 amd64 Transitional package for libnvidia-compute-440
rc libnvidia-compute-455:amd64 460.67-1pop0~1616430777~20.04~71e1ad1 amd64 Transitional package for libnvidia-compute-460
rc libnvidia-compute-460:amd64 465.31-1pop0~1623777959~20.10~a3ca7f3 amd64 Transitional package for libnvidia-compute-465
rc libnvidia-compute-465:amd64 470.57.02-1pop0~1627044105~20.10~f9815ed amd64 Transitional package for libnvidia-compute-470
ii libnvidia-compute-470:amd64 470.57.02-1pop0~1627044105~21.04~f9815ed amd64 NVIDIA libcompute package
ii libnvidia-compute-470:i386 470.57.02-1pop0~1627044105~21.04~f9815ed i386 NVIDIA libcompute package
ii libnvidia-decode-470:amd64 470.57.02-1pop0~1627044105~21.04~f9815ed amd64 NVIDIA Video Decoding runtime libraries
ii libnvidia-decode-470:i386 470.57.02-1pop0~1627044105~21.04~f9815ed i386 NVIDIA Video Decoding runtime libraries
ii libnvidia-encode-470:amd64 470.57.02-1pop0~1627044105~21.04~f9815ed amd64 NVENC Video Encoding runtime library
ii libnvidia-encode-470:i386 470.57.02-1pop0~1627044105~21.04~f9815ed i386 NVENC Video Encoding runtime library
ii libnvidia-extra-470:amd64 470.57.02-1pop0~1627044105~21.04~f9815ed amd64 Extra libraries for the NVIDIA driver
ii libnvidia-fbc1-470:amd64 470.57.02-1pop0~1627044105~21.04~f9815ed amd64 NVIDIA OpenGL-based Framebuffer Capture runtime library
ii libnvidia-fbc1-470:i386 470.57.02-1pop0~1627044105~21.04~f9815ed i386 NVIDIA OpenGL-based Framebuffer Capture runtime library
ii libnvidia-gl-440:i386 470.57.02-1pop0~1627044105~21.04~f9815ed i386 Transitional package for libnvidia-gl-470
ii libnvidia-gl-470:amd64 470.57.02-1pop0~1627044105~21.04~f9815ed amd64 NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii libnvidia-gl-470:i386 470.57.02-1pop0~1627044105~21.04~f9815ed i386 NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii libnvidia-ifr1-470:amd64 470.57.02-1pop0~1627044105~21.04~f9815ed amd64 NVIDIA OpenGL-based Inband Frame Readback runtime library
ii libnvidia-ifr1-470:i386 470.57.02-1pop0~1627044105~21.04~f9815ed i386 NVIDIA OpenGL-based Inband Frame Readback runtime library
rc nvidia-compute-utils-460 460.73.01-1pop0~1620243205~20.10~9a91ef9 amd64 NVIDIA compute utilities
ii nvidia-compute-utils-470 470.57.02-1pop0~1627044105~21.04~f9815ed amd64 NVIDIA compute utilities
rc nvidia-dkms-460 460.73.01-1pop0~1620243205~20.10~9a91ef9 amd64 NVIDIA DKMS package
ii nvidia-dkms-470 470.57.02-1pop0~1627044105~21.04~f9815ed amd64 NVIDIA DKMS package
rc nvidia-driver-460 460.67-1pop0~1616430777~20.10~71e1ad1 amd64 NVIDIA driver metapackage
ii nvidia-driver-470 470.57.02-1pop0~1627044105~21.04~f9815ed amd64 NVIDIA driver metapackage
rc nvidia-kernel-common-460 460.73.01-1pop0~1620243205~20.10~9a91ef9 amd64 Shared files used with the kernel module
ii nvidia-kernel-common-470 470.57.02-1pop0~1627044105~21.04~f9815ed amd64 Shared files used with the kernel module
ii nvidia-kernel-source-470 470.57.02-1pop0~1627044105~21.04~f9815ed amd64 NVIDIA kernel source package
ii nvidia-settings 470.57.01-0ubuntu0.21.04.1 amd64 Tool for configuring the NVIDIA graphics driver
ii nvidia-utils-470 470.57.02-1pop0~1627044105~21.04~f9815ed amd64 NVIDIA driver support binaries
ii screen-resolution-extra 0.18build2 all Extension for the nvidia-settings control panel
ii xserver-xorg-video-nvidia-470 470.57.02-1pop0~1627044105~21.04~f9815ed amd64 NVIDIA binary Xorg driver
~
Re-Install the driver package by installing the latest nvidia-driver-xxx package to your system with the following command:
sudo apt install nvidia-driver-xxx
Accept the additional packages and after the installation, reboot your system. You should now have the correct output when you run the glxinfo command in the first paragraph.
Gnome has been my favourite Window Manager for ages, to me it feels like a cosy blanket meaning that I’ve arrived at home 🙂
Part of that feeling is because of the awesome extensions that so many enthusiasts have made over the years. If you don’t know, the extensions add so much productivity and possibilities to an already great window manager.
I’ve put my favourite extensions in the list below. This list is part so that I can remember myself but also to explain why some of these extensions are so cool to use (to me at least)
Click the Extension name in the table below to go to the extensions web page on extensions.gnome.org
Clipboard manager for Gnome. I ALWAYS use a clipboard manager, doesn’t matter if I’m working on a Windows, Linux of OSx machine, it is one of the first things I install. Such a productivity booster. Clipboard indicator is one of a few clipboard managers in the extensions repository, I like the simplicity.
A dock for the Gnome Shell. One of the most popular extensions because it turns the dash into a dock! (What’s in a name) Makes switching and launching of applications easier.
Makes it easy to order your windows in a grid. Very nice productivity tool. I mostly use the 5×4 grid, with browsers having a size of 2×4 and terminals sized 1×4. You can switch on the fly between three (configurable) grid presets
Small widget which streams internet radio. I most often listen to Pinguin Radio and some of the local Dutch radio stations. Note: Does not listen to the keyboard media keys Favourite radio stations: Pinguin Radio: http://streams.pinguinradio.com/PinguinRadio192.mp3 Radio 538: http://22353.live.streamtheworld.com/RADIO538AAC.aac Radio Veronica: https://20873.live.streamtheworld.com/VERONICA.mp3 Radio 3FM: http://icecast.omroep.nl/3fm-bb-mp3
Shows all the input and output devices. I love this since I have several audio in- and outputs (USB amp / headphones / HDMI output via monitor) for different purposes. This extension gives me the current selected in- and output as well as letting me choose quickly.
One of the simplest and cleanest looking system monitors (CPU, Mem, Storage, Network, Load) It takes minimal space in the bar, yet gives me exactly the information I want on a glance. The extension works with colors (Shades of yellow, orange, red) to show how busy a resource is. For me this is very convenient if I want to know IF my CPU is being used heavily. One click on the pane and you see the top 5 of each category in a handy overview.
Changes the wallpaper based on several providers, I have it set to pick a picture from a folder every 30 minutes. It also serves a little like a pomodoro timer that way.
For a colleague I just made a screencast of a problem we were discussing. I was trying to use the minimum amount of tools in Gnome/Ubuntu and wanted to share the proces with you all.
Goal: Create a screencast recording of my desktop with narrated (recorded) audio at the same time.
If you are very curious and want to see the result immediately, look at the video below:
“Apache Kafka files store data without encryption”
I use Pop!_OS 21.04, which is based of Ubuntu. In Pop!_OS I use Gnome with Wayland. All the instructions below will work with Ubuntu and any Ubuntu based distribution as well.
This howto is divided in several sections:
Desktop (Video) recording
Audio recording
Putting the video and audio recording together
Additional tools used in the video:
Show the webcam (guvcview)
Written annotation on a page (xournal++)
Written annotation on screen (Draw On You Screen)
Video recording:
Since I want to use the most simple method, my approach is to use the built-in screen cast ability in Gnome.
Press Ctrl+Alt+R to start the screen cast recording.
When the recording is in progress, you see a red filled circle in your notification area:
When you press Ctrl+Alt+R again, the circle disappears and the recording is saved to the Videos folder in your home folder:
Note: This video file is without audio.
Audio recording
As the most simple solution I used the builtin Sound Recorder in Gnome:
Press “Record” to start your recording and click “Done” when you would like to end your recording. You can see me pressing the buttons in the recorded screen cast.
Important: You need to press the screencast start keyboard command Ctrl+Alt+R and the Record button at the same time, or your video and audio will be out of sync.
When you stop the recording, the Ogg Vorbis file will be saved in the default location in your home folder, which is: ~/Recordings.
Combine the video and audio
Right now you have two separate files, not really useful when they are not combined.
ffmpeg
this is the command itself
-y
overwrite output files without asking
-i {file location}
input file + file location
Note that there are two input files (video & audio)
-map
Designate one or more input streams as a source for the output file. The number is the first (0) or second (1) input file. The map itself shows what we are using in the output. In this case it is 0:v to use the video for the first input file and 1:a to use the audio of the second input file
-c copy file.webm
Specify the output file, in this case it will be copied to file.webm in the same directory as where you run the command.
The result is what happens here:
GIF recording of putting the video and audio together (Recorded with Peek GIF Recorder)
This is the minimum necessary to create a screencast!
For example, you can send this webm video output file to people over email / file share / whatever you’d like. You can also upload it to Youtube, which can process the output file and you are done to spread some knowledge!
Add some extra spice to your screencast
To add some engagement with whoever will view your screencast, you can show your own webcam in the screen. You can use the built in program Cheese
Another option is to use guvcview, which has a cleaner interface (no buttons on the webcam output window)
Install with sudo apt install guvcview , start the program with guvcview.
Then select your video input device. You can minimize the settings pane so that you’re left with only the video of your webcam for the introduction/conclusion of your video.
Annotation
For annotation I use Xournalpp (xournal++) which helps me in drawing with my XP-Pen drawing tablet. I think it makes the screen cast a bit more entertaining compared to showing plain text but you can decide for yourself.
You can also use a Gnome Extension called Draw on You Screen by Abakkk, with this extension you can do annotations directly on the screen and thus show your thoughts / comments / pointers on screen directly.
Note: I don’t use this extension in my example video though.
Conclusion
I hope this blog post helps you in creating screen casts with the simplest possible tools. Good luck and hope to see your videos around on the web!
So I’m kinda tired of Garmin apps needing internet all the time. Also it’s an extra step for me to first upload my GPX files in any Garmin app before I can sync it to the watch. And the Garmin apps don’t make sense to me. The libraries are overly complicated (for my use)
First: Connect your Garmin watch to your device.
Make sure the Garmin watch is in USB storage mode (in the settings)
Second: Open the watch in your file explorer and navigate to the "NEWFILES" directory.
Third: Place your GPX file there.
As soon as you disconnect the watch, the files there will be imported into the Courses folder and you can use them for your activities.
I wanted to update my MicroServer Gen8 bios to the latest version but the download site on HPE only showed .EXE files. Since I’m only running Linux on my machines it was not possible to execute that file.
You can however update the BIOS via ILO (Integrated Lights Out) if you extract the BIOS file from the executable.
(Currently the latest version is SP99427.exe. If you want to be sure you’re using the latest BIOS then click the tab “Revision History” to see if there are newer BIOS files available)
Extract the contents of the executable. Have a look at the directory structure below and extract the file marked "CPQJ06xx.xxx"(where “x” might change depending on versions)
I just installed a new Hardware RAID card in my microserver (gen8), and as soon as I booted it gave me this error and refused configuration of the Raid arrays on the P222.
It seems related to the battery which is connected to the cache module on my card. The battery was empty when I first booted the system.
Solution was to power up the system, leave it in POST while the battery was being charged.
After about an hour I tried again and I was able to clear the cache, clear the configuration for the RAID array and create a fresh array on the controller.
Note; perhaps the period of an hour could be shorter or longer in your specific case. The battery provided with my unit was quite small so it was charged enough after an hour to continue without errors. But I guess that that might differ per unit.
Note; Several posts on HP and server forums were suggesting that the unit might be defective and said to return the battery / cache module / Smart Array card. This post is mostly here to encourage patience; Getting a cup of coffee and checking again after an hour was the solution in my case.
I install Java on all my machines and used to add the java path and home variables to the user (or my user) bash profile but every time I added another user this is a manual step.
Until I found this small trick. Add a system wide profile path setting by creating a file in:
/etc/profile.d/filename
All files in profile.d are added to every users login. Much cleaner than adding it to every user’s profile.
It’s not always clear from which IP you might be reaching hosts on the internet. These IP’s are important to know since they are often the IP’s that you will whitelist on receiving systems.
The easiest way to find out what your external IP is, would be executing this command:
