Feat/linux virtual display (headless linux)

[fufesou]

1. Linux virtual display support. Unable to connect to Clients without monitor attached (headless linux) #59
2. May fix Unable to connect to ubuntu with dummy display. (Ver 1.2.0) #3592.
3. Refactor dialog. refactor dialog #3764 (comment) @grummbeer
4. Add "--cm-no-ui" for virtual display. There's some segfault bug with "--cm" with ui on headless env.

Only tested on Ubuntu for now.

Prerequirements:

# Only support gnome desktop. https://www.gnome.org
# xfce4 may be supported.

# for Ubuntu
$ sudo apt install ubuntu-desktop
$ sudo apt install xserver-xorg-video-dummy
$ sudo apt install lightdm

# for Fedora
$ sudo sudo yum groups install "GNOME"
$ sudo yum install xorg-x11-drv-dummy

# for archlinux
$ pacman -S xorg xorg-server xf86-video-dummy
$ pacman -S gnome

Steps

# install rustdesk
# get rustdesk id
$ sudo rustdesk --get-id
# set password
$ sudo rustdesk --password <password>

# connect

TODOs:

• Do not show "Connection Error" on logout.
• Failed to start Xorg on some PCs. parse_vt_settings: Cannot open /dev/tty0 (Permission denied).

[grummbeer]

Wow huge!

@fufesou very nice!

1. dialog

There must be a bit more space between the sections. Don't bother, i will fix this!

2. docs

Docs needs to be updated, due libpam0g-dev, build feature linux_headless?

3. notes

You split the large dialog Widget into much more smaller parts, what looks very good!

Do you think the same could be done with other very large and cluttered widgets? And also with huge files?

[congzhangzh]

cool

[grummbeer]

There must be a bit more space between the sections. Don't bother, i will fix this!

nope … so nice :-) it is, but missed it because i faked the controller to make the os login visible.

[fufesou]

Docs needs to be updated, due libpam0g-dev, build feature linux_headless?

Do you mean README.md file? No need to update it.
It is not the default feature.
And linux headless is a new experimental feature. There're still some TODOs here.

Do you think the same could be done with other very large and cluttered widgets? And also with huge files?

Yes. I think it is better. But I did not intentionally split the code. It was mainly due to seeing some duplicate code.

[grummbeer]

OK, thanks.

[ManuLinares]

How can I try this? I'm on rustdesk-nightly, running Arch with XFCE and lightdm.

This is the systemd service file:

# ~ cat /usr/lib/systemd/system/rustdesk.service

[Unit]
Description=RustDesk
Requires=network.target
After=systemd-user-sessions.service

[Service]
Type=simple
ExecStart=/usr/bin/rustdesk --service
PIDFile=/run/rustdesk.pid
KillMode=mixed
TimeoutStopSec=30
User=root
LimitNOFILE=100000

[Install]
WantedBy=multi-user.target

[joeySeal]

"xfce4 may be supported" does this mean xfce might work or xfce might be supported in the future?

[adamency]

No description provided.

[lounging-lizard]

I was able to get this working for Ubuntu 22.04.03 LTS by using the following xorg config (inserted at /usr/share/X11/xorg.conf.d/xorg.conf).

I had to create the config file as it was missing, I hope this helps someone else.

This is for a 1920x1080 display via X11/xorg,

Section "Device"
  Identifier "Configured Video Device"
  Driver "dummy"
  VideoRam 16384
EndSection

Section "Monitor"
  Identifier "Configured Monitor"
  HorizSync 5.0 - 1000.0
  VertRefresh 5.0 - 1000.0
  ModeLine "1920x1080" 23.53 1920 1952 2040 2072 1080 1106 1108 1135
EndSection

Section "Screen"
  Identifier "Default Screen"
  Monitor "Configured Monitor"
  Device "Configured Video Device"
  DefaultDepth 24
  SubSection "Display"
    Depth 24
    Modes "1920x1080"
  EndSubSection
EndSection

For further details regarding Xorg configuration please see: https://wiki.archlinux.org/title/xorg