Das Werkstatt

[PROBLEM] Got this error while installing a new package (on Xubuntu 20.04): Error in file "/usr/share/applications/org.kde.kdeconnect_open.desktop": "*/*" is an invalid MIME type ("*" is an unregistered media type) [SOLUTION] The '*/*' in that kdeconnect Desktop file s...

On Xubuntu 20.04.3: This morning, I wanted to restart an already existing Docker container: $ sudo docker start my_container ... but got this error message: failed to update store for object type *libnetwork.endpointCnt: Key not found in store [SOLUTION] On my setup, the /var/lib/docker folder is a ...

I wanted to introduce a new URI prefix to open links like "shotcut://" directly with the video editing software "Shotcut". On XFCE4 (Xubuntu 20.04) - and Firefox (v105.0). I've installed Shotcut using the AppImage. 1) Create symlink with a "nicer" filename for the appim...

I want to playback a test-video on a specific (HDMI) output on a multi-monitor setup. Here's what works as I intended it: mpv --config=no --screen=1 --fs dva_fidelity2-cut.mkv Plays the given video fullscreen on my right monitor. with "--screen=0", it plays on the left monitor. Have fun!

SWIM honestly had to admit that "Peppa Pig" episodes freak them out: The episodes "feel" way tooo fast and without any air to breathe in between. So I offered SWIM this ffmpeg-recipe to slow things down: $ ffmpeg -i peppa-Science_Museum.mp4 \ -filter_complex "[0:v]setpts=1.2...

If you'd like to verify if all files in an md5deep-manifest-file are present and okay, use the "audit" mode: If all files are okay, it will output nothing (<silence>). It should only list/show the entries that are erroneous.

[PROBLEM] I'm a very happy Xubuntu user on a HP Probook 430G6. So I bought another one. On that 2nd notebook (identical hardware, and identical Xubuntu version (20.04.1)) the Brightness +/- keys weren't working: They were togging the Microphone (Same as Fn+F8) :( [SOLUTION] I suspected the mismatch...

UPDATE: Unfortunately, the .BIN image extracted with 7zip is not the same that is created when extracting the files "the official way", using Windows. :evil: See: https://github.com/eriksjolund/install-linux-hp-elitebook-850-g5/issues/2 Therefore, when trying to update the BIOS, the corre...

[PROBLEM] I wanted to update (=git pull) an older copy of ffmpeg's source to its most recent state. This setup always worked, but now I got the following error message: fatal: unable to access 'https://git.ffmpeg.org/ffmpeg.git/': server certificate verification failed. CAfile: /etc/ssl/certs/ca-ce...

[PROBLEM] Since a recent update to Firefox 105.0 on Xubuntu 20.04, I can't play youtube videos anymore. The preview image loads, and when I click the play button the video plays for like 1-4 frames, then snaps back to pause. I ran firefox again from the console and got the following error messages:...

[PROBLEM] Trying to create a new session in Ardour 5, I get the following error message after starting JACK: Could not create session in $session_path”. Where $session_path is the directory location of the to-be-created session folder. [SOLUTION] First I suspected access right problems, creating th...

Two basic commands for "a default" usage of " md5deep ": 1) Create a recursive hashcode manifest: $ md5deep -r -e -l . > ~/cam202206.md5deep -r: Recursive. Also go into subfolders. -e: Show "how long it may take" for each file. -l: Output relative file paths (in the man...

[PROBLEM] On Xubuntu 20.04.3, I've ran into a very strange and very annoying problem: Whenever I tried to resume from suspend mode, it showed the login prompt for a few seconds - but keyboard input was only possible for a few seconds - then it went back to sleep (suspend) again. This loop went on f...

[PROBLEM] I own a Netgear R7800 . I am highly disappointed of this device! :x (*) (Warning: This "howto fix ..." post contains ranting about Netgear.) Anyways: When pushing the "Wifi On/Off"-button (2nd from the right) for 2s (as instructed in the manual), the WiFi goes off - bu...