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using xrdp with the Xorg window system to connect from win10 to ubuntu 20.04 in my local network. The connection is terrible slow. Compare to that a standard rdp connection (win10 to win10) via vpn through the internet is much faster then my local xrdp.

/etc/xrdp/xrdp.ini
max_bpp=32

After login via xrdp my desktop environment is:

~$ echo $XDG_CURRENT_DESKTOP
GNOME
Hölderlin
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  • Did you find any answer useful? Providing feedback is useful for the community. – sancho.s ReinstateMonicaCellio Mar 19 '21 at 20:03
  • most of your links I came across before I start this post. My desktop env is gnome. If you use Xorg for connection, then server/client 32 bits per pixel are highest that is allowed. – Hölderlin Mar 22 '21 at 21:51
  • You already found many of the links... It would be useful if you posted what you tried from there, and the result. So others can focus in helping you better. – sancho.s ReinstateMonicaCellio Mar 27 '21 at 10:52
  • Did you find any solution? I have same problem, win10 to win10 is smooth all day, but Ubuntu 20.04 to win10 is slow randomly, and very terrible in late afternoon. – le hien Nov 01 '21 at 03:08

5 Answers5

11

Make sure to choose your connection speed in your RDP client experience tab. Set it to "LAN (10Mbits or higher)". This enables the RFX codec.

Please see https://github.com/neutrinolabs/xrdp/discussions/2136

Just a random user
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5

Assuming you use Xfce4, try disabling compositing with

$ xfconf-query --channel=xfwm4 --property=/general/use_compositing --type=bool --set=false --create

You could make this setting permanent in xorg.conf with

Section "Extensions"
    Option "Composite" "Disable"
EndSection

You can also work this out via GUI (install it if need be)

$ xfwm4-tweaks-settings

If yo use KDE, try disabling compositor as well, Settings -> Display and Monitor -> Compositor.

Also, try using a lower number of colors in the configuration of the client (16 bits instead of 32 bits).

Also, try these options in /etc/xrdp/xrdp.ini.

Related:

  1. https://unix.stackexchange.com/questions/22077/xfce-or-pure-x11-commands-toggle-compositing-immediately-without-restarting-x
  2. https://unix.stackexchange.com/questions/4282/disable-composite-without-restarting-x
  3. https://superuser.com/questions/1539900/slow-ubuntu-remote-desktop-using-xrdp
  4. https://owendavies.net/articles/install-desktop-gui-on-ubuntu-server/
  5. https://github.com/neutrinolabs/xrdp/issues/1600
  6. xrdp and xfce4 Ubuntu > 18.04 Unusable
  7. https://github.com/neutrinolabs/xrdp/issues/501#issuecomment-262905321
sancho.s ReinstateMonicaCellio
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  • For me this setting made in /etc/xrdp/xorg.conf lead repeated to the following symptoms: 1. ssh went inactive, 2. xrdp: many errors regarding ssl-cert, recv, send 3. the computer was completely not accessible, also not physically. It has each time to be rebooted, and the inactive ssh service survived the boot, so I had to start it first via physical interface, before I could access ssh again. After that I removed the changes made to xorg and could again normally log in via ssh. I am using Ubuntu 22.04. So what was your configuration? – pedda Dec 28 '22 at 15:48
  • So for now I would be really cautious using that solution.i could have been warned cause I take the warning of the xconf command not too serious, or maybe I overread, because I wanted to have a stable solution. This is unfortunately for me the total opposite. What could have gone wrong here? False section sorting? False Xorg.conf (this is my only one, as Ubuntu works with wayland, afaik...But for xrdp it is the only option that worked on my computers (besides VNC, but that I did not get to work with XRDP, and VNC as a single solution is not fitting my requirements.... – pedda Dec 28 '22 at 16:00
  • The only thing besides installing xrdp via Ubuntu package manager was to add divers polkit rules to overcome the nasty issues logging in for every service that needs to used (especially colord, wifi-scans, printer,...) – pedda Dec 28 '22 at 16:02
  • Is it essential to do the changes not remotely via xrdp, but physically in front of the computer? – pedda Dec 28 '22 at 16:38
2

Setting "LAN (10Mbits or higher)" in the RDP Experience Tab solved the problem of slowness. Thank you.

Sherif Abdelrehim
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2

After doing a lot of research, I got good performance with these settings:

  • xfce4
  • xorgxrdp-glamor

In /etc/xrdp/sesman.ini and /etc/xrdp/xrdp.ini:

  • Policy=UBDI
  • max_bpp=16
  • xserverbpp=16
  • use_compression = yes
  • crypt_level=none
  • KillDisconnected=true
  • DisconnectedTimeLimit=0
  • tcp_send_buffer_bytes=4194304

Tweak for TCP (2x request buffer size):

  • sudo sysctl -w net.core.wmem_max=8388608

see https://github.com/neutrinolabs/xrdp/issues/1483

Disable compositor:

  • xfconf-query -c xfwm4 -p /general/use_compositing -t bool -s false
MarcosD
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0

For XRDP you will want to turn off Gnome's Animations:

Method 1 : Console

From console run the following as your current user:

gsettings set org.gnome.desktop.interface enable-animations false

Method 2 : Gnome Tweaks

Install the Gnome Tweaks tool:

sudo apt install gnome-tweak-tool

Run the Tweaks application which was installed.

  • Now use the hourglass at the top-left of Tweaks app and search for: animations
  • Switch Animations to off

See also: https://www.makeuseof.com/tag/speed-up-gnome-desktop/

Bastion
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