Rootless Xorg

Last published : Oct 15, 2026
The Linux VDA supports running Xorg with non-root user privileges, also known as "rootless" Xorg. Rootless Xorg is a significant security improvement over running as root.
Note:
  • Xorg does not support rootless operation on Amazon Linux 2 or RHEL 7.
  • Rootless Xorg also requires support from the GPU driver. If you are using a Remote PC Access VDA, test and verify that your GPU driver supports Rootless Xorg.
Rootless Xorg is enabled by default for VDAs without a GPU and VDAs using a NVIDIA GPU. You can manually enable and disable the feature using the following commands, respectively:
sudo /opt/Citrix/VDA/bin/ctxreg create -k "HKLM\System\CurrentControlSet\Control\Citrix\Xorg" -t "REG_DWORD" -v "Rootless" -d "1" --force
sudo /opt/Citrix/VDA/bin/ctxreg create -k "HKLM\System\CurrentControlSet\Control\Citrix\Xorg" -t "REG_DWORD" -v "Rootless" -d "0" --force
Related information
Graphics