[Trisquel-users] Re : Network, mouse, BT not working after grub edit

[lcerf]

Well, that is weird. There is no reason for a change in /etc/default/grub to  
make your hardware stop working. Don't you installed a kernel as well? You  
could try to boot an older kernel (you have not removed them all, right?) by  
choosing it in the "Advanced options" of the GRUB menu (press Shift right  
after the computer turns on to make this menu appear). You would be asked the  
GRUB password in /etc/grub.d/01_PASSWORD so either read it before (with 'sudo  
cat /etc/grub.d/01_PASSWORD') and remember it or, better, disable it (making  
all /etc/grub.d/01_PASSWORD's lines start with '#' and executing 'sudo  
update-grub'). You could try to update the kernel too:  
https://trisquel.info/en/wiki/update-linux-libre-kernel