Merci pour votre réponse.
J'ai déjà essayé différents éléments de cette page sans résoudre mon problème.
Voici les retours commande :
uname -a; lspci -nnk | grep -iA3 net; lsusb; dmesg | grep -i bluetooth; dmesg | grep -i firmware; lsmod | grep bluetooth
Linux Morgane-Precision-5540 5.8.0-38-generic #43~20.04.1-Ubuntu SMP Tue Jan 12 16:39:47 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
3b:00.0 Network controller [0280]: Intel Corporation Wireless-AC 9260 [8086:2526] (rev 29)
Subsystem: Intel Corporation Wireless-AC 9260 [8086:4010]
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 8087:0025 Intel Corp.
Bus 001 Device 003: ID 0c45:6d13 Microdia Integrated_Webcam_HD
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
[ 0.239612] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[ 3.075267] iwlwifi 0000:3b:00.0: loaded firmware version 46.6bf1df06.0 9260-th-b0-jf-b0-46.ucode op_mode iwlmvm
[ 3.075458] iwlwifi 0000:3b:00.0: Direct firmware load for iwl-debug-yoyo.bin failed with error -2
dpkg -l | grep blue
ii bluez 5.53-0ubuntu3 amd64 Bluetooth tools and daemons
ii bluez-cups 5.53-0ubuntu3 amd64 Bluetooth printer driver for CUPS
ii bluez-obexd 5.53-0ubuntu3 amd64 bluez obex daemon
ii gir1.2-gnomebluetooth-1.0:amd64 3.34.3-0ubuntu1 amd64 Introspection data for GnomeBluetooth
ii gnome-bluetooth 3.34.3-0ubuntu1 amd64 GNOME Bluetooth tools
ii libbluetooth3:amd64 5.53-0ubuntu3 amd64 Library to use the BlueZ Linux Bluetooth stack
ii libgnome-bluetooth13:amd64 3.34.3-0ubuntu1 amd64 GNOME Bluetooth tools - support library
ii pulseaudio-module-bluetooth 1:13.99.1-1ubuntu3.8 amd64 Bluetooth module for PulseAudio sound server
Pour rfkill list, j'obtiens :
rfkill list
0: dell-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no
1: dell-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
MAIS
Au moment où s'affiche le message d'erreur et que je ne peux entrer dans ma session, si je fais un rfkill list après avoir appuyé sur F2, tout est bloqué (puisque mon ordinateur s'est mis en mode avion).