[Fix] System doesn’t boot, boots to a black screen, or stops at a message

[pixel]

I had black screen after install of kernel 5.8 and 5.9rc. But I discovered it was due to nvidia. Reference:

[Nvidia] Deprecation of 340xx driver series

[image] We had a good run with Nvidia 340xx driver series. However, at some point also we have to drop that driver. With Manjaro 19.0 release we will remove that driver from mhwd-db. This means the driver won’t be recommended or detected by our distro by default. 340.108 was the last release by Nvidia to support X 1.20 and Kernel 5.4. As soon as there is an update to X that driver is gone. poll

Can't login to 5.8.6-1, no problem with 5.7.19 -2

For me it is with kernel 5.9 and Nvidia 450 drivers - the missing firmware for xhci error msg i get on every machine, but my nvidia (gtx970) machine just boots to a black screen. no log entries or something. but everything is fine with kernel 5.8 for me (fresh manjaro 20.1 kde install) my intel laptop and intel nuc are working fine with kernel 5.9. seems like a nvidia problem, yes.

and
https://forum.manjaro.org/t/how-to-set-automatically-xorg-with-free-driver-for-nvidia/26949/7
I hope it will help in some cases. Now I am able to run 5.9 with free driver.