Homelab, Linux, JS & ABAP (~˘▾˘)~
 

Month: February 2025

GNU/Linux, Mint

[Hardware] ASUS TUF GAMING B550M-PLUS (WIFI) – Bluetooth broken

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Somehow the onboard Bluetooth of my Motherboard stopped working, but the Wi-Fi was still working fine. This confused me because both are provided by the Intel Wi-Fi 6 AX200 card. The blueman-manager simply could not find the Bluetooth device anymore. Also, when running the command rfkill, it was just listing the Wi-Fi device. The second entry was missing (I took the screenshot, after Bluetooth was working again).

Since I had recently upgraded to a new kernel, I assumed this must be the problem. After testing many different kernels, it still didn’t work. Even on a kernel where it definitely worked before.

Then I stumbled across this thread Intel Wi-Fi 6 AX200 Bluetooth Stopped Working Yet Wifi is still fine. The last commenter solved his issue by unplugging the Intel Wi-Fi Card from his Motherboard and plugging it back in. To be honest, I’m not even sure if this is possible on my motherboard, as it is some onboard thing directly on the board. But this post leads me to reconnect the external antenna, which is connected with two cables on the back of the PC. Since Wi-Fi was still working all along, I did not expect anything from it, but after turning the PC back on, suddenly Bluetooth was working again. WTF! No idea how this is possible, as I have used Bluetooth and WI-FI for many months without the external antenna. Fortunately, however, it works again.

HR

[HR] Abwesenheiten (IT2001) – Anzeige Kontingentabtragungen

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Bei einer Abwesenheit wie z.B. Urlaub, die über eine Monatsgrenze oder über einige Feiertage hinweg geht, kann es hilfreich sein, die konkreten Abtragungen einzusehen, um zu verstehen, welche Tage in dem Zeitraum denn wirklich Urlaub waren.

Dazu einfach die Abwesenheit öffnen in der PA20 und auf Springen → Abtragungen (Shift+F8) gehen.

Man kann die Kontingentabtragung auch für das komplette Kontingent eines Jahres einsehen via IT2006.

Die zugehörige Datenbanktabelle ist PTQUODED. Um die Abträge für eine bestimmte Abwesenheitsart zu selektieren, muss noch ein JOIN auf die PA2001 über die DOCNR gemacht werden. Zumindest ist das der einzige Weg, den ich herausfinden konnte. 🙂

SELECT SUM( a~quode )
    FROM ptquoded AS a
    JOIN pa2001   AS b
      ON a~pernr = b~pernr
     AND a~docnr = b~docnr
    INTO DATA(urlaubsabtrag)
    WHERE a~pernr = pernr-pernr
     AND a~datum BETWEEN pn-begda AND pn-endda
     AND b~subty = 0100. " Abwesenheitsart, welche Selektiert werden soll
Android

[DerpFest] Xiaomi Pad 5 (nabu)

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I recently bought a used Xiaomi Pad 5 for 139.99€ from homezesting.com. It arrived in perfect condition.
The latest official Android version by Xiaomi is Android 13 with MIUI 14.0.5. This is kinda old, and I directly ran into an issue due to the old webview version in combination with the Home Assistant app (see here).

I therefore looked for a custom ROM and the first ROM I found for this device was DerpFest. I’ve never used it before, but flashing it shouldn’t be too different from other ROMs.
There are not much information on their website, but I found everything needed to know in their related telegram group: https://t.me/c/2284318430/8189

Unlocking the bootloader for Xiaomi devices can be annoying, but turned out, the bootloader of my purchased Pad 5 was already unlocked. Great!
(Update 10.02.2025: I asked the customer support and apparently they already sell all devices unlocked. Good to know!)

To make my life even simpler, I used the Auto-Installer shell script to install DerpFest 15. Unfortunately, it was running into an error, but it was easy to fix. (Seems like there is already a fixed version when downloading from GitHub here).

# make it executable
sudo chmod +x install_derpfest_linux.sh         

# start script
./install_derpfest_linux.sh  
# resulted in the error: /bin/bash^M: bad interpreter

# fix
sudo apt-get install dos2unix
dos2unix install_derpfest_linux.sh   
./install_derpfest_linux.sh

Then the script ran without any issues.

When starting the device the first time, I skipped the Google Login step, so I wasn’t able to use the Play Store. But since not even a web browser is installed by default (which I think is really great to not be bloated from the beginning :-), I had to enable USB-Debugging mode and sideload F-Droid to install basic apps like a file explorer and browser.

adb install F-Droid.apk

The Tablet is running super smooth and so far I could not find any issues! 🙂