Apparently it is not recommended to modify /boot/grub/grub.cfg directly (because this file will be overwritten next time update-grub is called)
A cleaner way to disable KMS is to modify /etc/default/grub instead, by specifying:
GRUB_CMDLINE_LINUX="radeon.modeset=0"
and call update-grub.
Apparently it is not recommended to modify /boot/grub/grub.cfg directly (because this file will be overwritten next time update-grub is called) LINUX=" radeon. modeset= 0"
A cleaner way to disable KMS is to modify /etc/default/grub instead, by specifying:
GRUB_CMDLINE_
and call update-grub.