Upgrading graphics card without reinstalling OS
by LancerNZ from LinuxQuestions.org on (#4XD58)
I've been wanting to upgrade my old Nvidia GTX 580 to an newer GeForce RTX2080.
Been a bit of a battle... when the new card came, I found that it did not really "fit" my case because the drive bay was in the way of the PCIe power plugs on the new card. Therefore, I go a whole new case as well and transferred the old motherboard and everything into the new case.
At this point, even though I didn't change anything on the system, the older card /motherboard decided to forget each other. I remember years back that it was an issue getting that card to work (and override the motherboard video out),
So... I put my new card in. This card works well on boot up, but once past the grub options... Ubuntu Linux, including the log in screen, is just blank.
I have a USB boot disk which I can boot into Ubuntu from (e.g. as a live distro running from the USB drive). I was hoping that, being an install disk, it would give an option to update/reinstall the current Ubuntu while leaving my home dirs etc intact... but it is only offering to install alongside as a new partition or to completely wipe the previous install.
How can I uninstall / update the current Ubuntu graphics driver (not working because it is the old card) to get it up and running again with the new card? I don't mind if it reverts to native Ubuntu graphics drivers like on the live USB stick for now... I just want to be able to log in to graphics mode again.


Been a bit of a battle... when the new card came, I found that it did not really "fit" my case because the drive bay was in the way of the PCIe power plugs on the new card. Therefore, I go a whole new case as well and transferred the old motherboard and everything into the new case.
At this point, even though I didn't change anything on the system, the older card /motherboard decided to forget each other. I remember years back that it was an issue getting that card to work (and override the motherboard video out),
So... I put my new card in. This card works well on boot up, but once past the grub options... Ubuntu Linux, including the log in screen, is just blank.
I have a USB boot disk which I can boot into Ubuntu from (e.g. as a live distro running from the USB drive). I was hoping that, being an install disk, it would give an option to update/reinstall the current Ubuntu while leaving my home dirs etc intact... but it is only offering to install alongside as a new partition or to completely wipe the previous install.
How can I uninstall / update the current Ubuntu graphics driver (not working because it is the old card) to get it up and running again with the new card? I don't mind if it reverts to native Ubuntu graphics drivers like on the live USB stick for now... I just want to be able to log in to graphics mode again.