NVDIA DRIVER - 설치불가

추천 그래픽 드라이버에 530으로 뜨길래
그래픽 드라이버 530으로 업그레이드 할려고 햇는데

SOL1

ubuntu-drivers autoinstall

안됨...??????!

SOL2

apt-get install nvidia-driver-465

결과->

The following packages have unmet dependencies:
nvidia-driver-465 : Depends: libnvidia-gl-465 (= 465.19.01-0ubuntu1) but it is not going to be installed
Depends: xserver-xorg-video-nvidia-465 (= 465.19.01-0ubuntu1) but it is not going to be installed
Depends: libnvidia-ifr1-465 (= 465.19.01-0ubuntu1) but it is not going to be installed
Recommends: libnvidia-compute-465:i386 (= 465.19.01-0ubuntu1) but it is not installable
Recommends: libnvidia-decode-465:i386 (= 465.19.01-0ubuntu1) but it is not installable
Recommends: libnvidia-encode-465:i386 (= 465.19.01-0ubuntu1) but it is not installable
Recommends: libnvidia-ifr1-465:i386 (= 465.19.01-0ubuntu1) but it is not installable
Recommends: libnvidia-fbc1-465:i386 (= 465.19.01-0ubuntu1) but it is not installable
Recommends: libnvidia-gl-465:i386 (= 465.19.01-0ubuntu1) but it is not installable

헐...

SOL 3

 sudo apt-get install --no-install-recommends nvidia-465

이 명령어로 하니 465 설치 됨ㄷㄷ 왜 되지? 근데 안타깝게도 nvidia-530 옵션이 없어

SOL 4

뭔가 패키지가 잘못된 거 같은데..nvidia ppa 삭제 후 시도
-> 안 됨

sudo apt-get install --no-install-recommends nvidia-465

(참고: https://inpages.tistory.com/149)
됨...?->왜 되는거지.......