‘Launch using Discrete Graphics Card’ option has disappeared after an update

[nclm]

Ubuntu Version:
26.04

Desktop Environment:
GNOME

Problem Description:
Hello,

I have a laptop with an integrated Intel GPU and an Nvidia graphics card, which has been running Ubuntu for 11 years. I’m currently on Ubuntu 26.04.

I regularly use the right-click option in GNOME, ‘Launch using Discrete Graphics Card’, to launch certain apps, notably DaVinci Resolve for video editing.

I did a system update a few days ago, as I do regularly. Today, the ‘Launch using Discrete Graphics Card’ option has disappeared.

Worse, in Settings → System → About → System Details, my Nvidia graphics card no longer appears.

However, Nvidia Settings still opens. And it seems that drivers are installed?

I’ve got some video editing work to carry on this afternoon, and I can no longer launch DaVinci Resolve.

Any idea what might have happened, and how I can restore the ‘Launch using Discrete Graphics Card’ option that I usually use?

Thanks!

[tea-for-one]

For systems that have both an integrated GPU and a dedicated GPU, this
package by default will force the integrated GPU to be used to save power.

You can launch individual apps using the dedicated GPU by running them
with the environment variable DRI_PRIME=1. Or you can right-click on the
app (while it’s not running) in GNOME Shell’s Activities Overview
and choose the “Launch using Dedicated Graphics Card” option.

If this default behavior is not appropriate, uninstall this package or
set xdg.force_integrated=0 as a kernel command-line option in your
bootloader.

Above info from switcheroo-control

[nclm]

@tea-for-one

Above info from switcheroo-control

Thanks, I do have this package installed.

[tea-for-one]

Is your Nvidia card listed?
Is the service enabled?
Here is a list of commands
It should provide you with enough info to investigate further

I’d be very happy to test everything but I don’t have an Nvidia GPU

[nclm]

My graphics card appears with the command lspci as well as with ubuntu-drivers devices. It does not appear with switcherooctl list

The weird thing is that it stopped working one day to the next, likely after this normal system update (not upgrade).

[tea-for-one]

Did you check the service status of switcheroo-control?

[nclm]

Solved by uninstalling Nvidia drivers entirely then reinstalling them.