Bluetooth/Wi-Fi Troubleshooting: Ubuntu 20.04 LTS, Intel AX200
I'm a new user to Ubuntu, but a novice/moderate experienced Linux user. I am getting strange Bluetooth behavior, and I found out my new hardware is Intel chipset that is both Bluetooth and Wi-Fi. However, under Additional Drivers in Software and Updates, the problem only shows up as my Wi-Fi.
The driver backport is completely blacked out. That backport should have fixed the issue, especially since the kernel has compatibility with this Intel chipset.
Also, the Wi-Fi is working fine. Bandwidth tests show it is working at full speed.
Ideas how to troubleshoot from the command line to manually use the driver backport?
1 ответ
Sorry this is not an answer on how to debug bluetooth, but I cannot post comments yet, so I'm giving you these information here.
Intel AX200 is having major problems with linux (for instance, i have the same card and sometimes, on boot, the card stops working and it won't come back to life unless I temporarily disable the battery of my laptop directly from the BIOS)^[1].
According to the answer of this post, what you see on the additional drivers is not actually a real problem.
Nonetheless, if you search for errors with dmsg or with journalctl you will find errors of this kind:
[ 44.601884] iwlwifi 0000:52:00.0: Direct firmware load for iwlwifi-cc-a0-49.ucode failed with error -2
If you check this thread, this seems to be a kernel problem, which is trying to load the wrong driver. Последние версии ядра (5.5+), кажется, решают эту проблему, но ubuntu 20.04 все еще находится на версии ядра 5.4, и я уверен, что она не изменится до следующей версии LTS ядра (2021?).
Я так не думаю отвечает на ваш вопрос, но я действительно надеюсь, что это вам поможет.
[1] Вы можете назвать это «принудительным электронным сбросом», отключение и повторное подключение самой карты Wi-Fi работает так же, но я понятия не имею, почему мне нужно это сделать. это.