Devuan is a Debian fork.
OS: Devuan Gnu/Linux 1.0 (Debian without systemd)
Rotate console screen when the system is booted provided framebuffer is on.
Orientian of my laptop is 90 degree to right.
Add fbcon=rotate:[1|2|3] to GRUB_CMDLINE_LINUX’s option in etc/default/grub. Then update-grub.
# If you change this file, run 'update-grub' afterwards to update
# For full documentation of the options in this file, see:
# info -f grub -n 'Simple configuration'
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
# GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
# Rotate framebuffer screen counter-clockwise
# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
# Uncomment to disable graphical terminal (grub-pc only)
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
# Uncomment to disable generation of recovery mode menu entries
# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"
Rotate screen in Xorg
Run xrandr -q command to find the display variable.
In my case, it is LVDS1.
Rotate screen left
$ xrandr –outupt LVDS1 –rotate left
To rotate when Xorg starts, an article suggests add the following lines in xorg.conf. I’ll test it later.
Option "Rotate" "left"