Comment 608 for bug 1958019

The issue appears to be that the Nvidia kernel module is failing to build and therefore you do not have working Nvidia support with this kernel. I'm not sure how you configured your kernel so I suspect you have one OR both of the following issues:

1. Nvidia's drivers do not yet support 5.18-rc1. Either Nvidia hasn't added support yet or your distribution's drivers are a little behind. Given that this is an rc1, it could be Nvidia that's behind.

2. Something in your kernel config is incompatible with the Nvidia drivers.

I strongly suspect it's #1 as others are having the same problem.

try:
lsmod | grep nvidia

You likely won't see anything.

At this point, it depends what's more important to you... Gaming or sound. You can revert to an older kernel or remove the Nvidia drivers for now. Eventually, newer kernels will be supported. In my experience, Nvidia usually isn't too far behind the curve on newer kernel support.

On a related note, brightness control with Nvidia in discrete mode has never worked for me on my Lenovo Legion 7i 16ITHg6.

(In reply to Darin Miller from comment #594)
> Currently the 5.18-rc1 kernel throws an error when attempting install 510
> drivers:
>
> dpkg: error processing package nvidia-driver-510 (--configure):
> dependency problems - leaving unconfigured
>
> Subsequently, laptop refuses to boot discrete graphics when prime-select =
> nvidia. However, on-demand "works" (but no perf tests to support).
>
> Regardless, brightness control have always worked in on-demand or "intel"
> (built-in vega) graphics mode.
>
> As soon as I can fully install the 510 driver, I will check brightness
> controls and report back. (We need another thread for this discussion other
> this bug report... any suggestions?)