I installed Ubuntu 20.04 Beta with the 3rd-party driver installation option checked. After the installation completed successfully and I had to restart, I used nomodeset in order to boot successfully. At this point in time, I had 5.4.0-25-generic as my kernel version, and the open source driver selected (as a result of nomodeset).
I then went into "Additional Drivers" to switch from the open source driver to Nvidia's proprietary 440 drivers. After the changed got applied, I was asked to restart. After restarting and booting back into Ubuntu, I see that the selected driver is the proprietary one I chose earlier, but my kernel is now 5.4.0-25-lowlatency. It somehow got added to the list of installed kernels at index 0 (value of GRUB_DEFAULT), even though I never installed it. When booting into specifically 5.4.0-25-generic through the GRUB menu, my GPU (an RTX 2060) isn't recognized (and, for example, the display ends up being low resolution). Only with this implcitily installed 5.4.0-25-lowlatency does my GPU get recognized.
Is this an expected compatibility issue between the generic kernel releases and Nvidia proprietary drivers? My intent here is to be able to install Nvidia's proprietary drivers along with the generic kernel, seeing that I don't do work which would benefit from the lowlatency one.
If it is a compatibility issue, why would the kernel being lowlatency suddenly resolve it, if it's still the same version (5.4.0-25)?
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