Ubuntu Mate 24.04 Deactivate Bluetooth Enabled on system startup
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EDIT /etc/bluetooth/main.conf
File: /etc/bluetooth/main.conf
sudo $EDITOR /etc/bluetooth/main.conf
- Line: 322
# AutoEnable defines option to enable all controllers when they are found. # This includes adapters present on start as well as adapters that are plugged # in later on. Defaults to 'true'. AutoEnable=true
- Change AutoEnable to false
AutoEnable=false
- save and exit
Done from now on, bluetooth will not be enabled by default at startup.
Default before edits cat /etc/bluetooth/main.conf
[General] # Defaults to 'BlueZ X.YZ', if Name is not set here and plugin 'hostname' is not loaded. # The plugin 'hostname' is loaded by default and overides the Name set here so # consider modifying /etc/machine-info with variable PRETTY_HOSTNAME=<NewName> instead. #Name = BlueZ # Default device class. Only the major and minor device class bits are # considered. Defaults to '0x000000'. #Class = 0x000100 # How long to stay in discoverable mode before going back to non-discoverable # The value is in seconds. Default is 180, i.e. 3 minutes. # 0 = disable timer, i.e. stay discoverable forever #DiscoverableTimeout = 0 # Always allow pairing even if there are no agent registered # Possible values: true, false # Default: false #AlwaysPairable = false # How long to stay in pairable mode before going back to non-discoverable # The value is in seconds. Default is 0. # 0 = disable timer, i.e. stay pairable forever #PairableTimeout = 0 # Use vendor id source (assigner), vendor, product and version information for # DID profile support. The values are separated by ":" and assigner, VID, PID # and version. # Possible vendor id source values: bluetooth, usb (default) or false (disabled) #DeviceID = bluetooth:1234:5678:abcd # Do reverse service discovery for previously unknown devices that connect to # us. For BR/EDR this option is really only needed for qualification since the # BITE tester doesn't like us doing reverse SDP for some test cases, for LE # this disables the GATT client functionally so it can be used in system which # can only operate as peripheral. # Defaults to 'true'. #ReverseServiceDiscovery = true # Enable name resolving after inquiry. Set it to 'false' if you don't need # remote devices name and want shorter discovery cycle. Defaults to 'true'. #NameResolving = true # Enable runtime persistency of debug link keys. Default is false which # makes debug link keys valid only for the duration of the connection # that they were created for. #DebugKeys = false # Restricts all controllers to the specified transport. Default value # is "dual", i.e. both BR/EDR and LE enabled (when supported by the HW). # Possible values: "dual", "bredr", "le" #ControllerMode = dual # Maximum number of controllers allowed to be exposed to the system. # Default=0 (unlimited) #MaxControllers=0 # Enables Multi Profile Specification support. This allows to specify if # system supports only Multiple Profiles Single Device (MPSD) configuration # or both Multiple Profiles Single Device (MPSD) and Multiple Profiles Multiple # Devices (MPMD) configurations. # Possible values: "off", "single", "multiple" #MultiProfile = off # Permanently enables the Fast Connectable setting for adapters that # support it. When enabled other devices can connect faster to us, # however the tradeoff is increased power consumptions. This feature # will fully work only on kernel version 4.1 and newer. Defaults to # 'false'. #FastConnectable = false # Default privacy setting. # Enables use of private address. # Possible values for LE mode: "off", "network/on", "device" # Possible values for Dual mode: "off", "network/on", "device", # "limited-network", "limited-device" # # - off: Local privacy disabled. # # - network/on: A device will only accept advertising packets from peer # devices that contain private addresses. It may not be compatible with some # legacy devices since it requires the use of RPA(s) all the time. # # - device: A device in device privacy mode is only concerned about the # privacy of the device and will accept advertising packets from peer devices # that contain their Identity Address as well as ones that contain a private # address, even if the peer device has distributed its IRK in the past. # - limited-network: Apply Limited Discoverable Mode to advertising, which # follows the same policy as to BR/EDR that publishes the identity address when # discoverable, and Network Privacy Mode for scanning. # # - limited-device: Apply Limited Discoverable Mode to advertising, which # follows the same policy as to BR/EDR that publishes the identity address when # discoverable, and Device Privacy Mode for scanning. # # Defaults to "off" #Privacy = off # Specify the policy to the JUST-WORKS repairing initiated by peer # Possible values: "never", "confirm", "always" # Defaults to "never" #JustWorksRepairing = never # How long to keep temporary devices around # The value is in seconds. Default is 30. # 0 = disable timer, i.e. never keep temporary devices #TemporaryTimeout = 30 # Enables the device to issue an SDP request to update known services when # profile is connected. Defaults to true. #RefreshDiscovery = true # Default Secure Connections setting. # Enables the Secure Connections setting for adapters that support it. It # provides better crypto algorithms for BT links and also enables CTKD (cross # transport key derivation) during pairing on any link. # Possible values: "off", "on", "only" # - "off": Secure Connections are disabled # - "on": Secure Connections are enabled when peer device supports them # - "only": we allow only Secure Connections # Defaults to "on" #SecureConnections = on # Enables D-Bus experimental interfaces # Possible values: true or false #Experimental = false # Enables kernel experimental features, alternatively a list of UUIDs # can be given. # Possible values: true,false,<UUID List> # Possible UUIDS: # d4992530-b9ec-469f-ab01-6c481c47da1c (BlueZ Experimental Debug) # 671b10b5-42c0-4696-9227-eb28d1b049d6 (BlueZ Experimental Simultaneous Central and Peripheral) # 15c0a148-c273-11ea-b3de-0242ac130004 (BlueZ Experimental LL privacy) # 330859bc-7506-492d-9370-9a6f0614037f (BlueZ Experimental Bluetooth Quality Report) # a6695ace-ee7f-4fb9-881a-5fac66c629af (BlueZ Experimental Offload Codecs) # 6fbaf188-05e0-496a-9885-d6ddfdb4e03e (BlueZ Experimental ISO socket) # Defaults to false. #KernelExperimental = false # The duration to avoid retrying to resolve a peer's name, if the previous # try failed. # The value is in seconds. Default is 300, i.e. 5 minutes. #RemoteNameRequestRetryDelay = 300 [BR] # The following values are used to load default adapter parameters for BR/EDR. # BlueZ loads the values into the kernel before the adapter is powered if the # kernel supports the MGMT_LOAD_DEFAULT_PARAMETERS command. If a value isn't # provided, the kernel will be initialized to it's default value. The actual # value will vary based on the kernel version and thus aren't provided here. # The Bluetooth Core Specification should be consulted for the meaning and valid # domain of each of these values. # BR/EDR Page scan activity configuration #PageScanType= #PageScanInterval= #PageScanWindow= # BR/EDR Inquiry scan activity configuration #InquiryScanType= #InquiryScanInterval= #InquiryScanWindow= # BR/EDR Link supervision timeout #LinkSupervisionTimeout= # BR/EDR Page Timeout #PageTimeout= # BR/EDR Sniff Intervals #MinSniffInterval= #MaxSniffInterval= [LE] # The following values are used to load default adapter parameters for LE. # BlueZ loads the values into the kernel before the adapter is powered if the # kernel supports the MGMT_LOAD_DEFAULT_PARAMETERS command. If a value isn't # provided, the kernel will be initialized to it's default value. The actual # value will vary based on the kernel version and thus aren't provided here. # The Bluetooth Core Specification should be consulted for the meaning and valid # domain of each of these values. # LE advertisement interval (used for legacy advertisement interface only) #MinAdvertisementInterval= #MaxAdvertisementInterval= #MultiAdvertisementRotationInterval= # LE scanning parameters used for passive scanning supporting auto connect # scenarios #ScanIntervalAutoConnect= #ScanWindowAutoConnect= # LE scanning parameters used for passive scanning supporting wake from suspend # scenarios #ScanIntervalSuspend= #ScanWindowSuspend= # LE scanning parameters used for active scanning supporting discovery # proceedure #ScanIntervalDiscovery= #ScanWindowDiscovery= # LE scanning parameters used for passive scanning supporting the advertisement # monitor Apis #ScanIntervalAdvMonitor= #ScanWindowAdvMonitor= # LE scanning parameters used for connection establishment. #ScanIntervalConnect= #ScanWindowConnect= # LE default connection parameters. These values are superceeded by any # specific values provided via the Load Connection Parameters interface #MinConnectionInterval= #MaxConnectionInterval= #ConnectionLatency= #ConnectionSupervisionTimeout= #Autoconnecttimeout= # Scan duration during interleaving scan. Only used when scanning for ADV # monitors. The units are msec. # Default: 300 #AdvMonAllowlistScanDuration= # Default: 500 #AdvMonNoFilterScanDuration= # Enable/Disable Advertisement Monitor interleave scan for power saving. # 0: disable # 1: enable # Defaults to 1 #EnableAdvMonInterleaveScan= [GATT] # GATT attribute cache. # Possible values: # always: Always cache attributes even for devices not paired, this is # recommended as it is best for interoperability, with more consistent # reconnection times and enables proper tracking of notifications for all # devices. # yes: Only cache attributes of paired devices. # no: Never cache attributes # Default: always #Cache = always # Minimum required Encryption Key Size for accessing secured characteristics. # Possible values: 0 and 7-16. 0 means don't care. # Defaults to 0 #KeySize = 0 # Exchange MTU size. # Possible values: 23-517 # Defaults to 517 #ExchangeMTU = 517 # Number of ATT channels # Possible values: 1-5 (1 disables EATT) # Default to 1 #Channels = 1 [CSIS] # SIRK - Set Identification Resolution Key which is common for all the # sets. They SIRK key is used to identify its sets. This can be any # 128 bit value or a string value (e.g. product name) which is then hashed. # Possible Values: # 16 byte hexadecimal value: 861FAE703ED681F0C50B34155B6434FB # String value: "My Product Name" # Defaults to none #SIRK = # SIRK Encryption # Possible values: # true: Encrypt SIRK when read # false: Do not encrypt SIRK when read. (plaintext) # Defaults to true #Encryption = true # Total no of sets belongs to this Profile # Defaults to 0 #Size = 0 # Rank for the device # Defaults to 0 #Rank = 0 [AVDTP] # AVDTP L2CAP Signalling Channel Mode. # Possible values: # basic: Use L2CAP Basic Mode # ertm: Use L2CAP Enhanced Retransmission Mode #SessionMode = basic # AVDTP L2CAP Transport Channel Mode. # Possible values: # basic: Use L2CAP Basic Mode # streaming: Use L2CAP Streaming Mode #StreamMode = basic [Policy] # # The ReconnectUUIDs defines the set of remote services that should try # to be reconnected to in case of a link loss (link supervision # timeout). The policy plugin should contain a sane set of values by # default, but this list can be overridden here. By setting the list to # empty the reconnection feature gets disabled. #ReconnectUUIDs=00001112-0000-1000-8000-00805f9b34fb,0000111f-0000-1000-8000-00805f9b34fb,0000110a-0000-1000-8000-00805f9b34fb,0000110b-0000-1000-8000-00805f9b34fb # ReconnectAttempts define the number of attempts to reconnect after a link # lost. Setting the value to 0 disables reconnecting feature. #ReconnectAttempts=7 # ReconnectIntervals define the set of intervals in seconds to use in between # attempts. # If the number of attempts defined in ReconnectAttempts is bigger than the # set of intervals the last interval is repeated until the last attempt. #ReconnectIntervals=1,2,4,8,16,32,64 # AutoEnable defines option to enable all controllers when they are found. # This includes adapters present on start as well as adapters that are plugged # in later on. Defaults to 'true'. AutoEnable=true # Audio devices that were disconnected due to suspend will be reconnected on # resume. ResumeDelay determines the delay between when the controller # resumes from suspend and a connection attempt is made. A longer delay is # better for better co-existence with Wi-Fi. # The value is in seconds. # Default: 2 #ResumeDelay = 2 [AdvMon] # Default RSSI Sampling Period. This is used when a client registers an # advertisement monitor and leaves the RSSISamplingPeriod unset. # Possible values: # 0x00 Report all advertisements # N = 0xXX Report advertisements every N x 100 msec (range: 0x01 to 0xFE) # 0xFF Report only one advertisement per device during monitoring period # Default: 0xFF #RSSISamplingPeriod=0xFF
If editing /etc/bluetooth/main.conf did not work
Computers can be strange, for some reason, same hardware and OS (before reformat) editing /etc/bluetooth/main.conf did not work?!
This should work in theory, but sometimes the configuration might not be applied due to other settings or overrides (or the computer just went nuts).
Found a kind of work around.
sudo $EDITOR /usr/local/bin/disable-bluetooth-on-startup.sh
- Add the following content to the script:
#!/bin/bash # Turn off Bluetooth at startup rfkill block bluetooth
- Make the script executable:
sudo chmod +x /usr/local/bin/disable-bluetooth-on-startup.sh
- have the script run after start up
$EDITOR ~/.config/autostart/bt_off.desktop
[Desktop Entry] Type=Application Name=BT off Exec=/usr/local/bin/disable-bluetooth-on-startup.sh Hidden=false NoDisplay=false X-GNOME-Autostart-enabled=true