11 March, 2026

Samsung Galaxy: Block phone number

Do this:

  1. Copy the phone number
  2. Go to "Call settings" (da: Opkaldsindstillinger)
  3. Select "Block number"
  4. Paste the number
  5. Now the number is added to the block list.
However, the scammers will probably try again from another scamnumber. They are just annoying trolls after all.

05 February, 2026

[SOLVED] Ubuntu: No sound in Bluetooth headphones / speakers

More advanced sound options after the Pulseaudio install


Try to install pulseaudio Bluetooth:

# sudo apt install pulseaudio pulseaudio-module-bluetooth

Ubuntu's standard settings do not work out of the box. I ran the command and now everything seems to work - with lots of sound options.

04 February, 2026

[PROBLEM] MacBook Air: Freeze when Outlook is running

The MacBook Air will often freeze when I use an external screen along side with Outlook. On Microsoft's page I've seen that it's a socalled "known problem". They give this advice:

  • Update your software
  • Try to downgrade Office
  • Update Office (!!)
  • Use another screen resolution on the external screen
By now I try the last option.

When I teach there is a similar problem with (not so)-Clevershare. Perhaps the solution is the same: use a somewhat smaller screen resolution.

[Solution] Visual Studio Code: very small letters in the OS windows



On my newly installed Ubuntu VSC's letters were too small. The settings in Ubuntu were tweaked and now they work all right. But VSC had it's own way of dispaying the windows.

After some duckduckgoing I found the solution: set the window zoom level to 2.

Perhaps this setting is usefull in other programs too?

20 January, 2026

Bang & Olufsen: Mozart API

How can I get a response from my device via the Mozart API? 
Use curl along these lines:

curl --request GET \
  --url http://192.168.*.*:80/api/v1/setup/remotes \
  --header 'Accept: application/json'

Let the asterisks be the IP-address on your LAN. 

How can I get the IP of my device?
In the B&O app go to "Settings" > "About" > "IP-address"

Where is the API?

The BeoNetRemote API
You could also try the BeoNetRemote platform, that works with devices such as "Contour" and "Beosound 2": https://documenter.getpostman.com/view/1053298/T1LTe4Lt#0ea7e41f-9b15-4be7-8560-5fdae05754ee

Github Desktop on Ubuntu

 Some recipees are overcomplicated. This one works just fine:

https://itsfoss.com/install-github-desktop-ubuntu/ 

19 January, 2026

Bang & Olufsen: Multiroom

What works:

  • Run Tidal / Music / Radio etc. on your TV - on the remote choose one of the options under "Music" (not "Watch TV")
  • Hold down the "start" key till you hear a beep on other multiroom devices.
  • Now you'll hear the music on these devices.
TV does not work - a workaround
  • You cannot hear the sounds from the TV
  • However there is a workaround: Watch TV on the internet on a PC or similar. Share the sound via the PC to the TV (or one of the other multiroom devices)
  • Hold down the "start" key till you hear a beep on other multiroom devices.
  • Now you'll hear the music on these devices.

18 January, 2026

Minisforum A1 X1



Bye Windows. Hello dear Ubuntu!
Installed Ubuntu and ditched Windows completely. 

The installation was easy, however on one of the first boots Bluetooth was not detected. The day after it worked, somehow ... The rest is moving data from my nine year old Ubuntu Server to Minisforum.

Minisforum came with Windows preinstalled. I opened Windows just to have a sneak peak, but I'm not a Windows fan. The installations is a nightmare. Spyware and payed solutions all over the place. During installation I dropped the Windows option, and installed Ubuntu on the system. Nope, Windows is not for me at all. 


Boot Disk
I bought a usb-stick and formatted it on my work-Mac.

 Recipe: https://ubuntu.com/tutorials/create-a-usb-stick-on-macos#1-overview 

The usb-sticl was FAT32 formatted, so the only thing to do was to burn the Ubuntu-iso. Here I followed the recipe above, downloaded Etcher and booted from the stick.

How to boot from the install disk
Press F7 several times during boot. Now you'll get the option to try or install Ubuntu. I tried and ran the install.

Ubuntu - htop

Now what's system-wise. Everything seems to be up and running. No swap used here and now, however the only thing running is music via Tidal in a chrome-browser and a terminal. 

htop - what's up and running?

Ubuntu: todo

  • Update backup on old system
  • cp backup to Minisforum "Valhalla"
  • Tidal - run it from app rather than browser ... how?
  • Install stuff like "Oh my zsh"
  • Buy new keyboard and mouse
  • Mount on the back of a monitor or movable system?
I'll probably just use the system as is - and install whatever is missing along the way. After a month or so I'll probably have a system with whatever I use. 

Verdict so far
Ubuntu more or less ran out of the box. 



22 December, 2025

[LEAVING LINKEDIN] ... and the darned SPAM continues ...



 Conclusion: LinkedIn is one big marketing annoyance. You cannot leave. 

From my Spam folder:


It's insane.

If you spammark LinkedIn they'll change the mail slightly ... so they continue on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on  on and on 

19 December, 2025

[LEAVING LINKEDIN] Trying again

 This time leaving LinkedIn Learning seemed like a success (again).

However this came up.

The go to Homepages opened LinkedIn. 

Now it seemed like I could leave. 


I've tried this before, but now I hope ... really hope ... that LinkedIn is a thing in the past. 

Again I received this email:


Is this the end?

(... the melody from sitcom "Soap" ought to play in the background now ...)

"So he tried leaving LinkedIn again. But did Per really leave linkedLn? Was he really off the hook? Or was he trapped in the never-ending Kafka'ish labyrinth? Watch out for the next episode of Leaving LinkedIn ..."


Do you know this feeling: "Haven't I been here before?"

[LEAVING LINKEDIN] The answer was ... auto-response. Leaving is still impossible.


 I can only say: ... sigh ...

[LEAVING LINKEDIN] Well I'm not alone ...

Business Insider
 See this article - Business Insider: "LinkedIn Is Almost Impossible To Quit"

https://www.businessinsider.com/how-to-close-your-linkedin-account-2011-2#of-course-my-customer-service-rep-franois-just-copied-and-pasted-something-thats-already-in-the-help-center-and-isnt-useful-to-me-13 

More and more share this experience. Leaving LinkedIn is impossible - and that's against the Law.


Reddit

https://www.reddit.com/r/linkedin/comments/1d0a4ah/impossible_to_close_linkedin_account/ 



[LEAVING LINKEDIN] It's hard to Leave LinkedIn

 I got this answer.

Now there is a subscription to LinkedIn learning. 

  • I cannot leave it !!
I have no words. It's insane.

But at least I've got an answer form a human being.


I have answered this email, and hope that it works. However the links in the email was yet another dead end. Waste of time.

What I don't understand is this: why send all this information when they could just delete my profile? Again: waste of my time.

How to use GPG - basic sample code

GPG: Show the stored password in the terminal

Send the content of the file to std out (-o):

# gpg -d -o - mySecrets.gpg


GPG: Encrypt a file

# gpg --encrypt --recipient recipient@example.com file.txt

The command will create the file file.gpg - and of course the file with the secret message must be deleted.


Also see the man page.


Pass - cannot encrypt files

For some reason pass can't encrypt and decrypt files on my MacBook Air. However gpg can.

Should I just ditch the old beloved pass?

Well, at least that is my conclusion. Why use a corrupt interface for gpg when gpg works fine?


06 December, 2025

[IMPOSSIBLE] Well - you cannot leave LinkedIn

 I have tried for a year. LinkedIn does not respect my wish for privacy. They spam, spam, spam and spam.

Now I cannot delete my account again - this time the password does not exist!

Shame on you LinkedIn! 


What am I supposed to do? How the hell can I leave this annying spam company? 

27 November, 2025

[LEAVING Linkedin] Unwanted mails

 The mail stream continues - now I have spammarked LinkedIn. It seems like the contact person I got from Irelands PDO does not exist. 

18 November, 2025

[LEAVING LINKEDIN] Mail to the DPO

 Hello DPO
( DPO@linkedin.com )

Ubuntu Upgrade to new Version

 # sudo do-release-upgrade

03 November, 2025

[SOLVED] Muddy images on Asus screen

The screen is connected to a MacBook air via USB-C. The contrast was bad, and certain information on the window bars were almost unreadable. First I thought that the issue had to do with the MacBook. 

However, the solution was in the actual ASUS screen.

I turned OFF HDI, strangely enough - that did the trick!

Solution: Turn off HDI.


29 October, 2025

[SCAM] Why is it so hard to delete my LinkedIn Account?

Quote of the day:

"You can check out any time you like, but you can never leave"  (from "Hotel California" by Glenn Lewis Frey, Don Felder, Donald Hugh Henley)

This post is made in order to document my attempt to close my LinkedIn profile and I have clearly stated that all my data must be deleted. Here is my documentation.

Now tt's the 10th time or so I try. From now on I will document every attempt to close my unwanted LinkedIn Account. 

Closing the account
I have turned off everything - even though I did the same thing the previous times. Here is the process:


They wanted a password reset
Then I had to reset my password. However this created my darned account again! Need I say: darkhats ...


And recreated the account again ... !!
However I could close the account again (today counts as two attempts to do so!)


I closed the account again, again
So now they say that my account is closed.



If this is a lie again, I'l contact the authorities and make a formal complaint to the Danish Datatilsynet.


Mail from LinkedIn: sorry to see you go
After this process I got this mail:


This seems fine, however ....
I've seen this message at least three times. There may be silence for at week or threee, then the emails return, and return. However, I hope that it works this time. Again ...

17.11. Received spam from LinkedIn ... 
Here we go again. LinkedIn contiues to spam, even though they said that they were sorry to see me go.

Documentation:


This is insane, I don't want such emails. And I will take the case to the authorities. 

It's a clear violation of "the right to be forgotten.

17.11. Formal complaint against LinkedIn

Dear Data Protection Commission,

I am writing to lodge a formal complaint against LinkedIn Ireland Unlimited Company, Wilton Place, Dublin 2, Ireland, for violating the EU General Data Protection Regulation (GDPR).

I wish to exercise my right to erasure under Article 17 of the GDPR. I have repeatedly attempted to have my personal data deleted by LinkedIn, but the company requires me to log in to confirm the deletion. This requirement results in continued processing of my data, which I consider to be a breach of GDPR, as I have explicitly requested full erasure.

Details:

  • Name: xxXXXxx
  • Email address associated with LinkedIn account: xXXXXx
  • Description of the issue: LinkedIn retains my data and imposes a login requirement for deletion, which I believe constitutes an unnecessary and disproportionate barrier to exercising my rights. When I log in they will activate the account, so it's a neverending story. Leaving is virtually impossible.
  • It should be possible to contact a human being for help in such a situation.
  • Documentation: Unfortunately it is not possible to contact a human being on Linkedin. I have tried to leave LinkedIn for more than a year, however my documentation blog started October 29th 2025.
  • Blog for documentation: https://multimusen.blogspot.com/ - I will update the blog as things proceed.

I kindly request that the DPC investigate this matter and ensure that LinkedIn complies with GDPR by deleting all my personal data without further delay.

Thank you for your attention. I look forward to your confirmation and guidance on the next steps.

Please let me know if you need more documentation from me.

Kind regards,

Per Thykjaer Jensen

17.11.2025 20:37 Spam






22 October, 2025

Typo of the day: PowerPint

 After a long day with tons of powerpoints, what you really need is a powerPint ...


13 October, 2025

How to kill all open programs on a MacBook

 Press OPTION + COMMAND + ESC

This window will open:


Mark all programs by COMMAND + A

Click the blue button (in danish it's "Afbryd", here I suppose it's something like "Kill apps" or "Terminate" or whatever).

QED