Thanks. Your journal.txt is showing the nvidia driver thinks the display was disconnected a few minutes after boot. So normally I would say that's a bad monitor connection (check your cables) or a driver bug. However the first message here also suggests the blackout was triggered by the system suspending and resuming. So please check your screensaver and power management settings...
ago 31 21:39:08 ubuntu-ryzen /usr/lib/gdm3/gdm-x-session[1829]: (II) systemd-logind: got resume for 13:68 ago 31 21:39:08 ubuntu-ryzen systemd-journald[416]: Suppressed 524 messages from session-3.scope ago 31 21:39:08 ubuntu-ryzen /usr/lib/gdm3/gdm-x-session[1829]: (--) NVIDIA(GPU-0): DFP-0: disconnected ago 31 21:39:08 ubuntu-ryzen /usr/lib/gdm3/gdm-x-session[1829]: (--) NVIDIA(GPU-0): DFP-0: Internal TMDS ago 31 21:39:08 ubuntu-ryzen /usr/lib/gdm3/gdm-x-session[1829]: (--) NVIDIA(GPU-0): DFP-0: 330.0 MHz maximum pixel clock ago 31 21:39:08 ubuntu-ryzen /usr/lib/gdm3/gdm-x-session[1829]: (--) NVIDIA(GPU-0): ago 31 21:39:08 ubuntu-ryzen /usr/lib/gdm3/gdm-x-session[1829]: (--) NVIDIA(GPU-0): Ancor Communications Inc VX229 (DFP-1): connected ago 31 21:39:08 ubuntu-ryzen /usr/lib/gdm3/gdm-x-session[1829]: (--) NVIDIA(GPU-0): Ancor Communications Inc VX229 (DFP-1): Internal TMDS ago 31 21:39:08 ubuntu-ryzen /usr/lib/gdm3/gdm-x-session[1829]: (--) NVIDIA(GPU-0): Ancor Communications Inc VX229 (DFP-1): 600.0 MHz maximum pixel clock ago 31 21:39:08 ubuntu-ryzen /usr/lib/gdm3/gdm-x-session[1829]: (--) NVIDIA(GPU-0): ago 31 21:39:08 ubuntu-ryzen /usr/lib/gdm3/gdm-x-session[1829]: (--) NVIDIA(GPU-0): DFP-2: disconnected ago 31 21:39:08 ubuntu-ryzen /usr/lib/gdm3/gdm-x-session[1829]: (--) NVIDIA(GPU-0): DFP-2: Internal DisplayPort ago 31 21:39:08 ubuntu-ryzen /usr/lib/gdm3/gdm-x-session[1829]: (--) NVIDIA(GPU-0): DFP-2: 1440.0 MHz maximum pixel clock ago 31 21:39:08 ubuntu-ryzen /usr/lib/gdm3/gdm-x-session[1829]: (--) NVIDIA(GPU-0): ago 31 21:39:08 ubuntu-ryzen /usr/lib/gdm3/gdm-x-session[1829]: (--) NVIDIA(GPU-0): DFP-3: disconnected ago 31 21:39:08 ubuntu-ryzen /usr/lib/gdm3/gdm-x-session[1829]: (--) NVIDIA(GPU-0): DFP-3: Internal TMDS ago 31 21:39:08 ubuntu-ryzen /usr/lib/gdm3/gdm-x-session[1829]: (--) NVIDIA(GPU-0): DFP-3: 165.0 MHz maximum pixel clock ago 31 21:39:08 ubuntu-ryzen /usr/lib/gdm3/gdm-x-session[1829]: (--) NVIDIA(GPU-0): ago 31 21:39:08 ubuntu-ryzen /usr/lib/gdm3/gdm-x-session[1829]: (II) NVIDIA(0): Setting mode "DFP-1:nvidia-auto-select" Unfortunately this is not a gnome-shell bug and the nvidia driver version 396 is not supported yet because it's not released yet (https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers-396). So we can keep discussing it here, but don't have a supported software component to blame right now. Hence the status is "Invalid". :( ** Changed in: gnome-shell (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1785834 Title: Screen randomly turns black minutes after successfully login with GDM To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1785834/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
