Dhananjay Borwankar's questions

I recently bought HP Pavilion with 5600h and GTX 1650, I installed Ubuntu 20.04.3 LTS with minimal Iso. I am having Nvidia Driver's issue along with this Brightness issue. It's stays at 100%. I also don't know if AMD inbuilt graphic drivers are installed or not. I installed the minimal Iso with i3-wm and pcmanfm xinit xorg software-properties-gtk(tried installing drivers from here, it installs but then when i open Nvidia-settings it's a blank. Also tried installing amdgpu20.45 for 20.04.01(I have 20.04.03) and it always ends with amdgpu-dkms errors.

P.S: I installed gdm3 accidentally and when i logged in using gdm3 and gnome the brightness control using Fn keys work. But not on i3-wm.

So I have zathura installed on Ubuntu 18.04 with i3-wm. Zathura works all well but every time I close zathura using the Mod+Shift+Q and then open the PDF next time it always starts from the first page, how do I make zathura to open the last previous page that was being read. It used to work well but then I had to install Ubuntu again for some reason