Just updated the kernel on my Debian 12 laptop and I'm now getting these strange warnings during startup:
May 06 15:54:45 anon kernel: Bluetooth: hci0: RTL: rom_version status=0 version=1
May 06 15:54:45 anon kernel: Bluetooth: hci0: RTL: loading rtl_bt/rtl8723b_fw.bin
May 06 15:54:45 anon kernel: irq 36: nobody cared (try booting with the "irqpoll" option)
May 06 15:54:45 anon kernel: CPU: 1 PID: 22 Comm: kworker/1:0 Not tainted 6.1.0-21-amd64 #1 Debian 6.1.90-1
...
May 06 15:54:45 anon kernel: handlers:
May 06 15:54:45 anon kernel: [<00000000d4bf13ba>] azx_interrupt [snd_hda_codec]
May 06 15:54:45 anon kernel: Disabling IRQ #36
Then I get the below warnings, which I was getting before this update:
May 06 15:54:45 anon kernel: bluetooth hci0: firmware: direct-loading firmware rtl_bt/rtl8723b_fw.bin
May 06 15:54:46 anon kernel: Bluetooth: hci0: RTL: loading rtl_bt/rtl8723b_config.bin
May 06 15:54:46 anon kernel: bluetooth hci0: firmware: failed to load rtl_bt/rtl8723b_config.bin (-2)
May 06 15:54:46 anon kernel: firmware_class: See https://wiki.debian.org/Firmware for information about missing firmware
May 06 15:54:46 anon kernel: bluetooth hci0: firmware: failed to load rtl_bt/rtl8723b_config.bin (-2)
May 06 15:54:46 anon kernel: bluetooth hci0: Direct firmware load for rtl_bt/rtl8723b_config.bin failed with error -2
May 06 15:54:46 anon kernel: Bluetooth: hci0: RTL: cfg_sz -2, total sz 22496
Can I safely ignore this? I'm assuming the new warning is something to do with the old warnings, but I just wanted to check.