Hi everyone, I wanted to share a workaround that fixed the RDP login/session issue for me on a DGX Spark after the latest updates.
System Platform: NVIDIA DGX Spark DGX OS: 7.4.0 Ubuntu: 24.04 arm64 Release file: DGX_SWBUILD_VERSION="7.2.3" DGX_OTA_VERSION="7.4.0" Problem After the recent updates, RDP stopped working properly. What I saw: RDP login screen appeared normally after entering credentials, the session either disconnected immediately, or showed a black screen / dropped the session local login still worked NVIDIA driver itself seemed fine (nvidia-smi was OK) In the logs I saw errors like: AcceptSecurityContext failed server supports only NLA Security Protocol security negotiation failure RDP client disconnected during the handover So this did not look like a GPU driver problem, but more like a GNOME Remote Desktop / FreeRDP regression. What fixed it for me I downgraded these packages from 3.5.1+dfsg1-0ubuntu1.4 to 3.5.1+dfsg1-0ubuntu1.2: libfreerdp3-3 libwinpr3-3 libwinpr-tools3-3 Commands I used: cd /tmp wget http://ports.ubuntu.com/pool/main/f/freerdp3/libfreerdp3-3_3.5.1+dfsg1-0ubuntu1.2_arm64.deb wget http://ports.ubuntu.com/pool/main/f/freerdp3/libwinpr3-3_3.5.1+dfsg1-0ubuntu1.2_arm64.deb wget http://ports.ubuntu.com/pool/main/f/freerdp3/libwinpr-tools3-3_3.5.1+dfsg1-0ubuntu1.2_arm64.deb sudo dpkg -i \ libwinpr3-3_3.5.1+dfsg1-0ubuntu1.2_arm64.deb \ libwinpr-tools3-3_3.5.1+dfsg1-0ubuntu1.2_arm64.deb \ libfreerdp3-3_3.5.1+dfsg1-0ubuntu1.2_arm64.deb sudo reboot After reboot, RDP started working again. Important note This is only a workaround, not a clean fix. Package 3.5.1+dfsg1-0ubuntu1.4 is the newer Ubuntu update, so I suspect there is a regression affecting DGX Spark / GNOME Remote Desktop / RDP handover. To avoid the packages being upgraded again immediately, I also set them on hold: sudo apt-mark hold libfreerdp3-3 libwinpr3-3 libwinpr-tools3-3 Current suspicion This looks like a regression in the newer FreeRDP-related packages on Ubuntu 24.04 arm64, affecting GNOME Remote Desktop on DGX Spark. If anyone from NVIDIA or Ubuntu can confirm whether this is a known issue, that would be very helpful. Maybe this saves someone else some time. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2141992 Title: GNOME Remote Desktop: Headless system-level RDP fails NLA handshake with Windows mstsc — black screen To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-remote-desktop/+bug/2141992/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
