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hardware entries:

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- changed wi-fi entry in linux folder for a general one
- improved linking of hardware entries via sections
- added bluez troubleshooting
This commit is contained in:
Marten B. Kante
2026-03-30 07:33:21 +02:00
parent 47242e81de
commit 336b070c06
9 changed files with 109 additions and 47 deletions
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10
wiki/bluetooth.md
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@@ -1,8 +1,8 @@
# Bluetooth
[Bluetooth](https://www.bluetooth.com/) is a short-range technology for wireless
data transfer.
[Bluetooth](https://www.bluetooth.com/) is a short-range technology for wireless data transfer.
From a [hardware](/wiki/hardware_%28general%29.md) perspective Bluetooth requires a compatible
adapter to work which may be integrated or external.
For [Linux](/wiki/linux.md) based operating systems the
[bluez package](/wiki/linux/bluez.md) is used as the implementation of the
bluetooth standard.
Informations on Bluetooth usage on [Linux](/wiki/linux.md)-based operating systems are described in
the [Bluetooth section of the Linux hardware entry](/wiki/linux/hardware_%28linux%29.md#bluetooth).

16
wiki/hardware_(general).md
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@@ -4,7 +4,21 @@ This entry focusses on various hardware components of a general desktop PC or a
For [Linux](/wiki/linux.md) Systems see
[the corresponding entry](/wiki/linux/hardware_%28linux%29.md).
## Contents of Technic Bag
## Hardware Functionality
The following subsections address functions that rely on dedicated hardware modules or adapters.
### Bluetooth
Configuration and troubleshooting for Bluetooth functionality are described in the
[corresponding Bluetooth entry](/wiki/bluetooth.md).
### Wi-Fi
Configuration and troubleshooting for Wi-Fi functionality are described in the
[corresponding Wi-Fi entry](/wiki/wi-fi.md).
## Technic Bag
The following are components that are useful to be included in cable- and technic bags to.
For power banks and power supplies it is useful to check for the power delivery standard.

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wiki/linux/bluez.md
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@@ -1,7 +1,7 @@
# BlueZ
[BlueZ](http://www.bluez.org/) is an implementation of the
[Bluetooth](/wiki/bluetooth.md) standard.
[BlueZ](http://www.bluez.org/) is an implementation of the [Bluetooth](/wiki/bluetooth.md)
standard.
This entry features the BlueZ package and all software that is based on it.
## Setup
@@ -20,6 +20,10 @@ systemctl enable bluetooth.service
## Usage
This section addresses the usage of Bluez.
### Connecting and Pairing of Devices
The Bluetooth features can be managed by different types of front-ends.
- `bluetoothctl` is a command-line interface included in the `bluez-utils`
@@ -31,3 +35,44 @@ The Bluetooth features can be managed by different types of front-ends.
Using `bluetuith` the [Bluetooth](/wiki/bluetooth.md) can be turned on (or off) by pressing `o`,
devices can be searched for by pressing `s`, a selected device can be paired by pressing `p` and
finally connected by pressing `c` before `bluetuith` can be left with `Q`.
## Troubleshooting
This section will focus on errors and the fixing of errors of Bluez.
### `bluetuith: no adapter found` or `bluetoothctl: No default controller available`
When this error occurs the adapter is not recognized by the software.
This can be confirmed using the following command and looking for the bluetooth adapter.
```sh
lsusb
```
If it is indeed not found it may be blocked by `rfkill`.
To check this run the following command.
```sh
rfkill
```
This command will display something similar to the following.
```txt
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
```
If the command displays `Soft blocked: yes` or `Hard blocked: yes` beneath the Bluetooth device it
has to be unblocked to use it.
For this run the following command where `<bluetooth-adapter>` is the name of the Bluetooth adapter
(in this case it would be `hci0`).
```sh
rfkill unblock <bluetooth-adapter>
```
Afterwards the adapter will probably be recognized again but a restart of service
`bluetooth.service` eventually has to be restarted as described in the
[systemd entry](/wiki/linux/systemd.md#startstopenabledisable-a-service-and-retrieve-its-logs).

26
wiki/linux/hardware_(linux).md
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@@ -5,7 +5,11 @@ laptop.
For non-Linux specific or general topics in hardware see the
[corresponding entry](/wiki/hardware_%28general%29.md)
## Battery
## Hardware Functionality
The following subsections address functions that rely on dedicated hardware modules or adapters.
### Battery
The battery of a notebook can be inspected by using the `upower` command.
To use it the tool needs to be installed.
@@ -40,24 +44,34 @@ For this run the following command.
acpi -b
```
## Power Management
### Bluetooth
[Bluetooth](/wiki/bluetooth.md) on [Linux](/wiki/linux.md) is generally managed by
[Bluez](/wiki/linux/bluez.md).
### Wi-Fi
Wi-Fi functionality on [Linux](/wiki/linux.md) is handled by various tools such as
[WPA Supplicant](/wiki/linux/wpa_supplicant.md) or [NetworkManager](/wiki/linux/networkmanager.md).
### Power Management
Tools, programs and guides to manage the power usage and improve battery life are described in the
[power management entry](/wiki/linux/power_management.md).
## (Liquid) Coolers
### (Liquid) Coolers
The viewing of temperatures of coolers as well as the selection of RGB-settings can be achieved by
using [liquidctl](https://github.com/liquidctl/liquidctl).
## Temperature
### Temperature
To check the temperature the command `sensors` can be used which (on most distributions) is a part
of the `lm_sensors` package.
It will then display all the available temperature sensors available as well as many other sensors
like the RPM for fans.
## ThinkPad TrackPoint
### ThinkPad TrackPoint
This section is based on a
[Reddit comment by zedbraxmen](https://www.reddit.com/r/thinkpad/comments/wjb8qz/configuring_trackpoint_in_wayland/).
@@ -75,7 +89,7 @@ ATTR{device/sensitivity}="275",
ATTR{device/speed}="215",
```
## Fingerprint Readers
### Fingerprint Readers
Many modern laptops include fingerprint sensors which can be used for authentication on
[Linux](/wiki/linux.md).

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wiki/linux/networkmanager.md
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@@ -2,7 +2,7 @@
NetworkManager - short NM - is a program to automatically detect and connect to
networks by providing options for various configuration.
It is used to set up [Wi-Fi](/wiki/linux/wi-fi.md).
It is used to set up [Wi-Fi](/wiki/linux/hardware_%28linux%29.md#wi-fi).
## Setup
@@ -50,3 +50,6 @@ It will restart the [SystemD](/wiki/linux/systemd.md) service and enable the Wi-
systemctl restart NetworkManager
nmcli radio wifi on
```
If the error still persists afterwards it may be useful to also restart WPA Supplicant as explained
[in the corresponding section of its entry](/wiki/linux/wpa_supplicant.md#restarting-wpa-supplicant).

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wiki/linux/wi-fi.md
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@@ -1,27 +0,0 @@
# Wi-Fi
Wi-Fi is a type of wireless network protocol that is used for local area networks.
On [Linux-based systems](/wiki/linux.md) there are different programs that handle the Wi-Fi
connection.
- [WPA Supplicant](/wiki/linux/wpa_supplicant.md) is used for WPA2 and WPA3 connections among
others.
- [NetworkManager](/wiki/linux/networkmanager.md) is used for various network connections.
## Usage
Tipps for usage can be found under the corresponding entries.
## Troubleshooting
Tipps for troubleshooting can be found under the corresponding entries, but the ones that use
multiple programs to fix are listed here.
### Restart WPA Supplicant and Reenable the Wi-Fi device
A simple fix for many problems is a restart of [WPA Supplicant](/wiki/linux/wpa_supplicant.md)
aswell as reenabling the Wi-Fi device using [NetworkManager](/wiki/linux/networkmanager.md).
This can be done by first restarting WPA Supplicant as explained in the
[corresponding section](/wiki/linux/wpa_supplicant.md#restarting-wpa-supplicant) and then
reenabling the Wi-Fi device as explained in the
[section of NetworkManagers entry](/wiki/linux/networkmanager.md#restarting-and-reenabling-wi-fi).

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wiki/linux/wpa_supplicant.md
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@@ -3,7 +3,7 @@
`wpa_supplicant` is a free implementation of an IEEE 802.11i supplicant.
It is especially interesting due to its WPA2 and WPA3 capabilities in contrast
to other networking software.
It is used to set up [Wi-Fi](/wiki/linux/wi-fi.md).
It is used to set up [Wi-Fi](/wiki/linux/hardware_%28linux%29.md#wi-fi).
## Usage
@@ -32,3 +32,7 @@ Most of the problems regarding WPA Supplicant can be fixed by restarting the
```sh
systemctl restart wpa_supplicant
```
Afterwards - if the error still persists - it may be useful to reenable the Wi-Fi device as
explained in the
[section of the NetworkManager entry](/wiki/linux/networkmanager.md#restarting-and-reenabling-wi-fi).

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wiki/wi-fi.md Normal file
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@@ -0,0 +1,9 @@
# Wi-Fi (General)
Wi-Fi is a wireless networking technology used for wireless local area networks also called WLAN.
It allows devices to communicate over radio frequencies without physical cables.
It needs a module or adapter and therefore relies on dedicated
[hardware](/wiki/hardware_%28general%29.md).
Informations on Wi-Fi usage on [Linux](/wiki/linux.md)-based operating systems are described in
the [Wi-Fi section of the Linux hardware entry](/wiki/linux/hardware_%28linux%29.md#wi-fi).