Linux Virtual Display for iPad Pro

Gnome Remote

sudo ufw allow 5900/tcp
sudo ufw status verbose
systemctl --user restart gnome-remote-desktop.service
systemctl --user status  gnome-remote-desktop.service

gsettings set org.gnome.desktop.remote-desktop.rdp screen-share-mode extend

Linux Display Driver

10-amdgpu.conf

---

if [[ ! -e /usr/share/X11/xorg.conf.d/10-amdgpu.conf ]];then
cat << EOF | sudo tee /usr/share/X11/xorg.conf.d/10-amdgpu.conf >/dev/null
Section "OutputClass"
        Identifier "AMDgpu"
        MatchDriver "amdgpu"
        Driver "amdgpu"
EndSection
EOF
fi

10-nvidia.conf

---

if [[ ! -e /usr/share/X11/xorg.conf.d/10-nvidia.conf ]];then
cat << EOF | sudo tee /usr/share/X11/xorg.conf.d/10-nvidia.conf >/dev/null
Section "OutputClass"
    Identifier "nvidia"
    MatchDriver "nvidia-drm"
    Driver "nvidia"
    Option "AllowEmptyInitialConfiguration"
    ModulePath "/usr/lib/x86_64-linux-gnu/nvidia/xorg"
EndSection
EOF
fi

10-quirks.conf

---

if [[ ! -e /usr/share/X11/xorg.conf.d/10-quirks.conf ]];then
cat << EOF | sudo tee /usr/share/X11/xorg.conf.d/10-quirks.conf >/dev/null
# Collection of quirks and blacklist/whitelists for specific devices.


# Accelerometer device, posts data through ABS_X/ABS_Y, making X unusable
# http://bugs.freedesktop.org/show_bug.cgi?id=22442 
Section "InputClass"
        Identifier "ThinkPad HDAPS accelerometer blacklist"
        MatchProduct "ThinkPad HDAPS accelerometer data"
        Option "Ignore" "on"
EndSection

# https://bugzilla.redhat.com/show_bug.cgi?id=523914
# Mouse does not move in PV Xen guest
# Explicitly tell evdev to not ignore the absolute axes.
Section "InputClass"
        Identifier "Xen Virtual Pointer axis blacklist"
        MatchProduct "Xen Virtual Pointer"
        Option "IgnoreAbsoluteAxes" "off"
        Option "IgnoreRelativeAxes" "off"
EndSection

# https://bugs.freedesktop.org/show_bug.cgi?id=55867
# Bug 55867 - Doesn't know how to tag XI_TRACKBALL
Section "InputClass"
        Identifier "Tag trackballs as XI_TRACKBALL"
        MatchProduct "trackball"
        MatchDriver "evdev"
        Option "TypeName" "TRACKBALL"
EndSection

# https://bugs.freedesktop.org/show_bug.cgi?id=62831
# Bug 62831 - Mionix Naos 5000 mouse detected incorrectly
Section "InputClass"
        Identifier "Tag Mionix Naos 5000 mouse XI_MOUSE"
        MatchProduct "La-VIEW Technology Naos 5000 Mouse"
        MatchDriver "evdev"
        Option "TypeName" "MOUSE"
EndSection
EOF
fi

10-radeon.conf

---

if [[ ! -e /usr/share/X11/xorg.conf.d/10-radeon.conf ]];then
cat << EOF | sudo tee /usr/share/X11/xorg.conf.d/10-radeon.conf >/dev/null
Section "OutputClass"
	Identifier "Radeon"
	MatchDriver "radeon"
	Driver "radeon"
EndSection
EOF
fi

11-nvidia-offload.conf

---

if [[ ! -e /usr/share/X11/xorg.conf.d/11-nvidia-offload.conf ]];then
cat << EOF | sudo tee /usr/share/X11/xorg.conf.d/11-nvidia-offload.conf >/dev/null
# DO NOT EDIT. AUTOMATICALLY GENERATED BY gpu-manager

Section "ServerLayout"
    Identifier "layout"
    Option "AllowNVIDIAGPUScreens"
EndSection
EOF
fi

20-intel.conf

---

if [[ ! -e /usr/share/X11/xorg.conf.d/20-intel.conf ]];then
cat << EOF | sudo tee /usr/share/X11/xorg.conf.d/20-intel.conf >/dev/null
Section "Device"
    Identifier "intelgpu0"
    Driver "intel"
    Option "VirtualHeads" "2"
EndSection
EOF
fi

30-virtscreen.conf

---

if [[ ! -e /usr/share/X11/xorg.conf.d/30-virtscreen.conf ]];then
cat << EOF | sudo tee /usr/share/X11/xorg.conf.d/30-virtscreen.conf >/dev/null
# nvidia/nouveau/amdgpu device should be configured first before Intel GPU
Section "Device"
	Identifier "nvidiagpu0"
	Driver     "nvidia" # Because you are using Nvidia proprietary driver. Change to "nouveau" if you are using open source nouveau driver
EndSection

# Then configure intel internal GPU
Section "Device"
	Identifier "intelgpu0"
	Driver     "intel"
	# You may put Option "VirtualHeads" "1" here but it seem you don't need to put this for Ubuntu 18.04.
EndSection
EOF
fi

40-libinput.conf

---

if [[ ! -e /usr/share/X11/xorg.conf.d/40-libinput.conf ]];then
cat << EOF | sudo tee /usr/share/X11/xorg.conf.d/40-libinput.conf >/dev/null
# Match on all types of devices but joysticks
#
# If you want to configure your devices, do not copy this file.
# Instead, use a config snippet that contains something like this:
#
# Section "InputClass"
#   Identifier "something or other"
#   MatchDriver "libinput"
#
#   MatchIsTouchpad "on"
#   ... other Match directives ...
#   Option "someoption" "value"
# EndSection
#
# This applies the option any libinput device also matched by the other
# directives. See the xorg.conf(5) man page for more info on
# matching devices.

Section "InputClass"
        Identifier "libinput pointer catchall"
        MatchIsPointer "on"
        MatchDevicePath "/dev/input/event*"
        Driver "libinput"
EndSection

Section "InputClass"
        Identifier "libinput keyboard catchall"
        MatchIsKeyboard "on"
        MatchDevicePath "/dev/input/event*"
        Driver "libinput"
EndSection

Section "InputClass"
        Identifier "libinput touchpad catchall"
        MatchIsTouchpad "on"
        MatchDevicePath "/dev/input/event*"
        Driver "libinput"
EndSection

Section "InputClass"
        Identifier "libinput touchscreen catchall"
        MatchIsTouchscreen "on"
        MatchDevicePath "/dev/input/event*"
        Driver "libinput"
EndSection

Section "InputClass"
        Identifier "libinput tablet catchall"
        MatchIsTablet "on"
        MatchDevicePath "/dev/input/event*"
        Driver "libinput"
EndSection
EOF
fi

70-wacom.conf

---

if [[ ! -e /usr/share/X11/xorg.conf.d/70-wacom.conf ]];then
cat << EOF | sudo tee /usr/share/X11/xorg.conf.d/70-wacom.conf >/dev/null
# Some of the below input classes appear 3x times, once for each of
# "tablet", "touchscreen", and "touchpad" to ensure that the Wacom
# driver is not accidentally bound to other types of hardware that
# Wacom has made which are not handled by the wacom driver (e.g the
# Wacom Bluetooth Keyboard)
#
# https://sourceforge.net/p/linuxwacom/bugs/294/

Section "InputClass"
        Identifier "Wacom USB tablet class"
        MatchUSBID "056a:*"
        MatchDevicePath "/dev/input/event*"
        MatchIsTablet "true"
        Driver "wacom"
EndSection

Section "InputClass"
        Identifier "Wacom USB touchscreen class"
        MatchUSBID "056a:*"
        MatchDevicePath "/dev/input/event*"
        MatchIsTouchscreen "true"
        Driver "wacom"
EndSection

Section "InputClass"
        Identifier "Wacom USB touchpad class"
        MatchUSBID "056a:*"
        MatchDevicePath "/dev/input/event*"
        MatchIsTouchpad "true"
        Driver "wacom"
EndSection

Section "InputClass"
	Identifier "Wacom tablet class"
	MatchProduct "Wacom|WACOM|PTK-540WL|ISD-V4"
	MatchDevicePath "/dev/input/event*"
	MatchIsTablet "true"
	Driver "wacom"
EndSection

Section "InputClass"
	Identifier "Wacom touchscreen class"
	MatchProduct "Wacom|WACOM|PTK-540WL|ISD-V4"
	MatchDevicePath "/dev/input/event*"
	MatchIsTouchscreen "true"
	Driver "wacom"
EndSection

Section "InputClass"
	Identifier "Wacom touchpad class"
	MatchProduct "Wacom|WACOM|PTK-540WL|ISD-V4"
	MatchDevicePath "/dev/input/event*"
	MatchIsTouchpad "true"
	Driver "wacom"
EndSection

# Serial Wacom devices should always be one of tablet, touchscreen, or
# touchpad so we can safely get away with just one match section in
# these cases
Section "InputClass"
        Identifier "Wacom PnP device class"
        MatchPnPID "WACf*|WCOM*|WACM*|FUJ02e5|FUJ02e7|FUJ02e9"
        MatchDevicePath "/dev/input/event*"
        Driver "wacom"
EndSection

Section "InputClass"
	Identifier "Wacom serial class"
	MatchProduct "Serial Wacom Tablet"
	Driver "wacom"
EndSection

Section "InputClass"
        Identifier "Wacom serial class identifiers"
        MatchProduct "WACf|FUJ02e5|FUJ02e7|FUJ02e9"
        Driver "wacom"
EndSection

# Hanwang tablets
Section "InputClass"
	Identifier "Hanwang class"
	MatchProduct "Hanwang"
	MatchDevicePath "/dev/input/event*"
	Driver "wacom"
EndSection

# Waltop tablets
Section "InputClass"
	Identifier "Waltop class"
	MatchProduct "WALTOP"
	MatchIsTablet "on"
	MatchDevicePath "/dev/input/event*"
	Driver "wacom"
EndSection

# N-Trig Duosense Electromagnetic Digitizer
Section "InputClass"
	Identifier "Wacom N-Trig class"
	MatchProduct "HID 1b96:0001|N-Trig Pen|N-Trig DuoSense"
	MatchDevicePath "/dev/input/event*"
	Driver "wacom"
	Option "Button2" "3"
EndSection

# Dell Canvas 27 (touch part is an Advanced Silicon, pen part a Wacom)
Section "InputClass"
        Identifier "Dell Canvas 27 Touch"
        MatchUSBID "2575:0204"
        MatchDevicePath "/dev/input/event*"
        MatchIsTouchscreen "true"
        Driver "wacom"
EndSection

# Surface Go
Section "InputClass"
        Identifier "SurfaceGo Touch"
        MatchProduct "ELAN9038:00 04F3:261A"
        MatchDevicePath "/dev/input/event*"
        Driver "wacom"
EndSection

# Nuvision Solo 10 Draw (Supports Surface Pens)
Section "InputClass"
        Identifier "Nuvision Solo 10 Draw"
        MatchProduct "04F3200A:00 04F3:22F7"
        MatchDevicePath "/dev/input/event*"
        Driver "wacom"
EndSection
EOF
fi

Knowledge

lsblk lscpu lsusb free -h sudo lshw ufw status ufw status verbose systemctl status ufw apt list --installed	sudo ufw allow http sudo ufw allow OpenSSH sudo ufw allow 5900/tcp sudo ss -tulpn | grep LISTEN sudo ss -tulwn | grep LISTEN sudo ss -tulpn | grep LISTEN | grep sshd sudo ss -tulpn | grep LISTEN | grep redis sudo ss -tulpn | grep LISTEN | grep gnome sudo ss -tulpn | grep LISTEN | grep apache
sudo lspci -t sudo lspci -v | less sudo glxinfo -B | less sudo lshw -short sudo lshw -C system sudo lshw -C display sudo lshw -C input | less sudo lshw -C memory| less	sudo dmidecode -t sudo dmidecode -t 1 sudo dmidecode -t 2 sudo dmidecode -t 3 sudo dmidecode | less sudo dmidecode | grep 'SKU Number' sudo dmidecode -s system-product-name sudo dmidecode -s system-serial-number
cvt 1600 1200 60 virtual display mode description: cvt 1600 1200 60 | sed -n "s/^.*Modeline\s*\".*\"\s*//p" virtual display mode name based on resolution: cvt 1600 1200 60 | sed -n "s/^.*Modeline\s*\"\(.*\)\".*/\1/p"
x11vnc -storepasswd :' Enter VNC password: Verify password: Write password to /home/chorke/.vnc/passwd? [y]/n y Password written to: /home/chorke/.vnc/passwd ' /usr/bin/x11vnc -auth guess -forever -loop -noxdamage\ -repeat -rfbauth /home/chorke/.vnc/passwd -rfbport 5900 -shared
display server is wayland|xorg(x11) echo ${XDG_SESSION_TYPE}	sudo apt install --reinstall x11-common sudo systemctl start x11-common.service
xdpyinfo|grep -oP 'dimensions:\s+\K\S+' xdpyinfo|grep -oP 'dimensions:\s+\K\S+'|cut -d 'x' -f1 xdpyinfo|grep -oP 'dimensions:\s+\K\S+'|cut -d 'x' -f2	xrandr --current|grep '*'|uniq|awk '{print $1}' xrandr --current|grep '*'|uniq|awk '{print $1}'|cut -d 'x' -f1 xrandr --current|grep '*'|uniq|awk '{print $1}'|cut -d 'x' -f2

References

Set Up a Firewall with UFW on Ubuntu 22.04 Academia JavaEE Workspace in Raspbian Gnome Commonly Used Network Ports Academia JavaEE Workspace in Ubuntu Academia JavaEE Workspace in MacOS iPad Pro Disable Virtual Keyboard VS Code on iPad Pro Alpine/Morefine Apple iPad Pro Duet Display	iPad Pro » 11-inch » 2nd Gen » Specifications Gnome Remote Extended Virtual Monitor Use iPad as a 2nd Display for Ubuntu Use iPad as a 2nd monitor on Linux X11vnc Service is not Running VIRTUAL1 option not available Linux Remote Virtual Display Add VIRTUAL output to Xorg Arch Linux » Xorg » X11 Unmask systemctl	xrandr Not Showing All Ports & Resolutions VIRTUAL1 option for AMD Ryzen & Radeon Bash Get the Monitor Resolution Ubuntu » VNC » Servers X11VNC