I have recently fresh installed Ubuntu 18.04 after the upgrade from 17.10 failed (see this question for more about that), and now the option to use dedicated graphics card does not show up when I right-click any icon.
Setting global variable
DRI_PRIME does make a command use the dedicated Radeon R5 M330, so I am sure that there are no driver related issues. However, the dedicated GPU does not show up in the Details section in System Settings; only the integrated Intel HD Graphics 520 shows up. It used to show up there as "AMD HAINAN" when using the
radeon driver, and "amd radeon r5 m330" when using the
How can I make the "Use Dedicated Graphics Card" option appear in the drop-down menu when right-clicking an application icon?
EDIT: I found this line in
sudo journalctl /usr/bin/gnome-shell (it is the first line in the log):
May 11 14:02:31 yassine-HP-Notebook gnome-shell: Ignoring GPU /dev/dri/card1 due to the lack of connectors