My DGX Spark shows the NVIDIA logo / loading animation for a few seconds, then the display goes black and the monitor reports “No signal / entering power saving mode.” Any tips for debugging?
It had been working fine for the past few days. I’ve been using it heavily running Qwen 32B (though not more than ~200 runs/day, and only on small-resolution images). I haven’t changed anything else or done any additional tweaks.
Hi, The spinning circle indicates the FW has updated correctly and hand off to OS has happened.
This appears to be a kernel crash or display driver issue. If feasible, try a different monitor. If this repeats, consider re-imaging the system to see if that resolves it.
Are you using HDMI? Try using usb-c/display port and see if it helps. Could be a display issue.
Fixed it. The issue was Wayland conflicting with the NVIDIA display driver. I disabled Wayland by editing /etc/gdm3/custom.conf and uncommenting WaylandEnable=false, then restarted the display manager with sudo systemctl restart gdm3. Display came back. Might also be worth checking /etc/X11/xorg.conf has AllowEmptyInitialConfiguration set to true under the Screen section, which was already the case on mine.
I had been using RustDesk for remote access which required some special display configuration, eventually both the monitor display and RustDesk works.
Thanks