Originally Posted by hephasteus
100 percent cpu usage isn't odd at all on glxgears. If you don't have 3d mode then you are using the software rasterizer. Which means all graphics are rendered on the cpu. Which means the renderer is going to use every bit of the cpu to render.
Yeah, I know that... that's why I'm using it as an indicator that I somehow don't have hardware 3D acceleration currently.
Anyway my question still stands
---------- Post added at 11:03 PM ---------- Previous post was at 07:42 PM ----------
I have found the solution! It turns out that the "basic video" mode does two things: it configures X.org to use the VESA driver, and it tells grub to disable kernel modesetting to force it to really use VESA no matter what (my inspiration for the solution came from doing the reverse of the instructions on this page
So, to go back to a full graphics experience, you need to do the following (as root):
- rm /etc/X11/xorg.conf
- nano /etc/grub.conf # in this file, edit the kernel boot lines to remove the "nomodeset" argument
I now see the pretty boot splash and can use GNOME Shell again.