This looks relevant. The DisplayPort connection is failing at the kernel or hardware level:
Oct 23 07:56:44 p7010 kernel: i915 0000:00:02.0: [drm] *ERROR* [CONNECTOR:262:DP-1][ENCODER:261:DDI TC1/PHY B] Invalid DPCD with no link rates, using defaults Oct 23 07:56:44 p7010 kernel: i915 0000:00:02.0: [drm] *ERROR* [CONNECTOR:262:DP-1][ENCODER:261:DDI TC1/PHY B] Invalid DPCD max lane count (0), using default Oct 23 07:56:47 p7010 kernel: i915 0000:00:02.0: [drm] *ERROR* [CONNECTOR:262:DP-1][ENCODER:261:DDI TC1/PHY B] Invalid DPCD with no link rates, using defaults Oct 23 07:56:47 p7010 kernel: i915 0000:00:02.0: [drm] *ERROR* [CONNECTOR:262:DP-1][ENCODER:261:DDI TC1/PHY B] Invalid DPCD max lane count (0), using default Oct 23 07:56:47 p7010 kernel: i915 0000:00:02.0: [drm] *ERROR* [CONNECTOR:262:DP-1][ENCODER:261:DDI TC1/PHY B] Invalid DPCD with no link rates, using defaults So I recommend trying a new DisplayPort cable. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2127805 Title: Ubuntu 25.10 hangs on idle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2127805/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
