Comment 77 for bug 1765363

Vasyl, your solution works, but it has a big disadvantage.
HDMI doesn't work.
I'm deleting the 80-nvidia-poweroff.rules file - HDMI works after rebooting.
Restore this file - HDMI is not working.

In general, there is a big problem with NVidia - all kinds of solutions to the power problem never take into account the presence of HDMI output on the NVidia chip.

In fact, the solution I gave above did not fix it too.
When I connected the HDMI monitor, I saw that the fight wasn't over.

Prime also injects a file with rules, and there is a situation where a user on a new Ubuntu installs NVidia drivers and has HDMI running, but after only one use of "prime select" he can never again turn on the HDMI monitor again until he reads the forums and deletes this file.
A particular cynicism is that the file is not deleted when drivers and prime are removed.

Unfortunately, I won't be able to name the file now, I deleted it, I also deleted all the shortcuts so that home users wouldn't be able to switch the adapter mode through the prime GUI, and I use what is configured in #66, and I switch adapters in the BIOS.
At the same time, my notebook consumes 3.5-6 watts of battery power while working for Intel, and after switching to NVidia, HDMI works.