prime-select nvidia not reflected in "about" Ubuntu 18.04

I have a Dell XPS 15 9570 with both intel graphics and nvidia grpahics. Currently I am running Wayland (to avoid screen tearing issues) and the nvidia 410 driver.

I want to always know whether I am using intel or nvidia and be able to switch between the two.

If I run the commands

 sudo prime-select nvidia prime-select query

the terminal returns in fact

 nvidia 

However when I go to "About", under graphics it continues to list "Intel HD Graphics (Coffeelake 3x8 GT2)".

What gives?

Update: I suspect the issue is that "About" is not reflecting correctly what my computer is using. The reason being that if

 prime-select query 

returns

 nvidia

Then I cannot even log into Ubuntu Xorg (Gnome crashes immediately and returns me to login screen), but if it returns

 intel 

then I have no problem (FYI Wayland allows me to log on regardless). So something must be changing...

4

1 Answer

you need to reboot after running

prime-select (nvidia or intel)

for the changes to take effect,

also ligtDM (Display manager) with Unity 7 (now community maintained) desktop (deptecated by Canonical since Ubuntu 16.04) seems to work better, for nVidia with multiple GPU setup,

than GDM (Display Manager) which is the default for Gnome Desktop which is the default Desktop Environment since Ubuntu 18.04 (I think).

1

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