Score:4

System Freezes when a new bluetooth device or USB device is connected for 5 seconds

cn flag

I'm using Ubuntu 20.04 with kernel 5.11.0-25. If I connect a Bluetooth device (e.g. my keyboard after going to sleep or a new USB device, but not SD cards) the system will freeze for around 5 seconds. Audio will keep playing, but the image is frozen and the mouse/etc will not work.

Unfortunately I cannot show any code or ideas.

How can I solve this problem?

bw3u avatar
cn flag
Have you made any changes in your BIOS? Can you try resetting it to defaults and disable `Fastboot` & `Secureboot` ? Does your system freezes with every peripheral or USB devices when connecting your system, this can be hardware specific as well. Since the information you have given is very limited, these are just the ones that come to my mind :)
cn flag
Then I shall be running these tests later this evening :) thank you
cn flag
So it seems secure boot is greyed out with the value 'enabled' so no hope to change this. Fast boot is indeed disabled. OS type is dry to "Other OS" if they helps us at all.
bw3u avatar
cn flag
Hmm, afaik secure boot should be disabled it can cause issues sometimes, best to disable that. Never heard of OS type but seems irrelevant, are you using a laptop if so which model? Can you try to burn a new iso into a usb drive and boot to live environment and play around, let's see if it's hardware/bios issue.
cn flag
It's a desktop machine, Asus mother board. Booting into live disc!!! Genius god, why didn't I think of that. I'm annoyingly out of the country for 9 days now and my bounty will close!! Feel free to give some information and I'll gladly award the bounty and try to trouble shot when I'm back
in flag
Could you [edit] your question to include the Terminal output of: (1) `dmesg | grep -I bluetooth` (2) `sudo lsusb` and (3) `hciconfig -a`? With this, it may be possible to identify an issue
cn flag
Thanks you @matigo I've updated the question with all 3 of these.
in flag
This is interesting. The `1532:0088` Razer shows as being a Bluetooth device, and the Asus does not appear to be in the `dmesg` output. Have you installed the requisite driver for the Asus device?
cn flag
Ye, I didn't realise the Razer mouse would be bluetooth :O However there no official drivers for Asus's dongle. My idea was to get a broadcom device and then support would be out of the box
in flag
Final question before I write a possible solution: do you see any messages in `/var/log/syslog` when you plug the Asus Bluetooth dongle into the machine? Could you [edit] your question to include that output, as it will confirm a couple of things, allowing for a slightly customised answer
cn flag
I have cleared syslog and then plugged in and then back in, but syslog does not get updated when I do this. So I guess its either in a different log, or somehow the world has gone crazy :D Thank you again for helping!
cn flag
Sadly nobody has suggestions.
cn flag
I've just done a fresh install of 20.04 and can confirm the issue is still happening. Which makes me think its a hardware thing? I will try a new dongle.
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