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modprobe: ERROR: could not insert 'btusb': Operation not permitted

cn flag

I have recently started using a new Ubuntu desktop and it does not come with a Bluetooth adapter. I am using the UB500 from tp-link. After plugging it in I could not see any devices to connect to so I followed Bluetooth scan doesn't detect any device on Ubuntu 21.10. Everything was running fine until suddenly yesterday I unplugged the adapter while the computer was running and from then I am unable to use the adapter.

I tried following the document again but this time it's throwing an error when

~$ modprobe btusb
modprobe: ERROR: could not insert 'btusb': Operation not permitted
~$ lsmod | grep -i bt and: sudo dmesg | grep bt
grep: and:: No such file or directory
grep: sudo: No such file or directory
grep: dmesg: No such file or directory
Virat Raaz avatar
cn flag
I was trying to install Tp-link UB500 using [this link][1]. I am facing the same issue: # sudo modprobe -v btusb insmod /lib/modules/5.15.0-48-generic/kernel/drivers/bluetooth/btusb.ko modprobe: ERROR: could not insert 'btusb': Invalid argument I have run those commands # lsmod | grep -i bt btrtl 24576 0 btbcm 24576 0 btintel 40960 0 bluetooth 704512 10 btrtl,btintel,btbcm,bnep [1]: https://github.com/tedboudros/tplink-ub500-linux-patch-guide
Virat Raaz avatar
cn flag
# sudo dmesg | grep bt [ 2.253949] btusb: loading out-of-tree module taints kernel. [ 2.278328] btusb: disagrees about version of symbol btbcm_setup_patchram [ 2.278331] btusb: Unknown symbol btbcm_setup_patchram (err -22)
Virat Raaz avatar
cn flag
while making btusb.ko some message appeared CC [M] /home/user/linux-5.15/drivers/bluetooth/btusb.mod.o LD [M] /home/user/linux-5.15/drivers/bluetooth/btusb.ko BTF [M] /home/user/linux-5.15/drivers/bluetooth/btusb.ko Skipping BTF generation for /home/user/linux-5.15/drivers/bluetooth/btusb.ko due to unavailability of vmlinux
chili555 avatar
cn flag
@ViratRaaz Please start your own new question.
Virat Raaz avatar
cn flag
@chili555 Pipewire solved my problem. Thank you for your kind support.
Someone avatar
my flag
The is because of SecureBoot, disable it in the BIOS settings.
chili555 avatar
cn flag
Try sudo modprobe btusb.
aijax avatar
cn flag
`sudo modprobe btusb modprobe: ERROR: could not insert 'btusb': Invalid argument`. This is my work desktop, I don't think I am permitted to do that.
chili555 avatar
cn flag
Please edit your question to show the result of these terminal commands: `lsmod | grep -i bt` and: `sudo dmesg | grep bt` Welcome to Ask Ubuntu.
aijax avatar
cn flag
@chili555 I've updated the results. Can you please take a look at it? Thanks for the welcome
chili555 avatar
cn flag
These are two seperate commands; not one command with the word 'and'. Please try again.
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