Have you tried other TTYs? When I press Ctrl+Alt+F3, for example, I switch to a ‘real’ terminal that (I assume) doesn’t require the GPU to work. From there you might be able to recover.
On Linux Mint the default, graphical userface is on TTY7 (CTRL+Alt+F7).
Yes, I have tried that. But it has no apparent effect when the computer is in that frozen state. (i.e. pressing ctrl+alt+F3 or whatever doesn’t change what is on the screen.
One time I tried imagining that the terminal came up, and so I ‘signed in’ and tried to shut down without seeing anything on the screen. But it didn’t work. … but since I couldn’t see anything, it’s quite possible I just mistyped something. So I guess that’s inconclusive.
Have you tried other TTYs? When I press Ctrl+Alt+F3, for example, I switch to a ‘real’ terminal that (I assume) doesn’t require the GPU to work. From there you might be able to recover.
On Linux Mint the default, graphical userface is on TTY7 (CTRL+Alt+F7).
Yes, I have tried that. But it has no apparent effect when the computer is in that frozen state. (i.e. pressing ctrl+alt+F3 or whatever doesn’t change what is on the screen.
One time I tried imagining that the terminal came up, and so I ‘signed in’ and tried to shut down without seeing anything on the screen. But it didn’t work. … but since I couldn’t see anything, it’s quite possible I just mistyped something. So I guess that’s inconclusive.